期刊文献+
共找到1,930篇文章
< 1 2 97 >
每页显示 20 50 100
Time-Varying Mesh Stiffness Calculation and Dynamic Modeling of Spiral Bevel Gear with Spalling Defects
1
作者 Keyuan Li Baijie Qiao +2 位作者 Heng Fang Xiuyue Yang Xuefeng Chen 《Journal of Dynamics, Monitoring and Diagnostics》 2024年第2期143-155,共13页
Time-varying mesh stiffness(TVMS)is a vital internal excitation source for the spiral bevel gear(SBG)transmission system.Spalling defect often causes decrease in gear mesh stiffness and changes the dynamic characteris... Time-varying mesh stiffness(TVMS)is a vital internal excitation source for the spiral bevel gear(SBG)transmission system.Spalling defect often causes decrease in gear mesh stiffness and changes the dynamic characteristics of the gear system,which further increases noise and vibration.This paper aims to calculate the TVMS and establish dynamic model of SBG with spalling defect.In this study,a novel analytical model based on slice method is proposed to calculate the TVMS of SBG considering spalling defect.Subsequently,the influence of spalling defect on the TVMS is studied through a numerical simulation,and the proposed analytical model is verified by a finite element model.Besides,an 8-degrees-of-freedom dynamic model is established for SBG transmission system.Incorporating the spalling defect into TVMS,the dynamic responses of spalled SBG are analyzed.The numerical results indicate that spalling defect would cause periodic impact in time domain.Finally,an experiment is designed to verify the proposed dynamic model.The experimental results show that the spalling defect makes the response characterized by periodic impact with the rotating frequency of spalled pinion. 展开更多
关键词 dynamic modeling slice method SPALLING spiral bevel gear time-varying mesh stiffness(TVMS)
下载PDF
Introduction to Mesh Based Generated Lumped Parameter Models for Electromagnetic Problems using Triangular Elements
2
作者 Haidar Y.Diab Salim Asfirane +2 位作者 Nicolas Bracikowski Frédéric Gillon Yacine Amara 《CES Transactions on Electrical Machines and Systems》 CSCD 2023年第1期21-34,共14页
This paper is an introduction to mesh based generated reluctance network modeling using triangular elements.Many contributions on mesh based generated reluctance networks using rectangular shaped elements have been pu... This paper is an introduction to mesh based generated reluctance network modeling using triangular elements.Many contributions on mesh based generated reluctance networks using rectangular shaped elements have been published,but very few on those generated from a mesh using triangular elements.The use of triangular elements is aimed at extending the application of the approach to any shape of modeled devices.Basic concepts of the approach are presented in the case of electromagnetic devices.The procedure for coding the approach in the case of a flat linear permanent magnet machine is presented.Codes developed under MATLAB environment are also included. 展开更多
关键词 Lumped parameter modeling Finite element method mesh Triangular elements Electromagnetic devices modelING
下载PDF
A geometrically and locally adaptive remeshing method for finite difference modeling of mining-induced surface subsidence 被引量:1
3
作者 Ziyu Zhang Gang Mei Nengxiong Xu 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2022年第1期219-231,共13页
Surface subsidence induced by underground mining is a typical serious geohazard.Numerical approaches such as the discrete element method(DEM)and finite difference method(FDM)have been widely used to model and analyze ... Surface subsidence induced by underground mining is a typical serious geohazard.Numerical approaches such as the discrete element method(DEM)and finite difference method(FDM)have been widely used to model and analyze mining-induced surface subsidence.However,the DEM is typically computationally expensive,and is not capable of analyzing large-scale problems,while the mesh distortion may occur in the FDM modeling of largely deformed surface subsidence.To address the above problems,this paper presents a geometrically and locally adaptive remeshing method for the FDM modeling of largely deformed surface subsidence induced by underground mining.The essential ideas behind the proposed method are as follows:(i)Geometrical features of elements(i.e.the mesh quality),rather than the calculation errors,are employed as the indicator for determining whether to conduct the remeshing;and(ii)Distorted meshes with multiple attributes,rather than those with only a single attribute,are locally regenerated.In the proposed method,the distorted meshes are first adaptively determined based on the mesh quality,and then removed from the original mesh model.The tetrahedral mesh in the distorted area is first regenerated,and then the physical field variables of old mesh are transferred to the new mesh.The numerical calculation process recovers when finishing the regeneration and transformation.To verify the effectiveness of the proposed method,the surface deformation of the Yanqianshan iron mine,Liaoning Province,China,is numerically investigated by utilizing the proposed method,and compared with the numerical results of the DEM modeling.Moreover,the proposed method is applied to predicting the surface subsidence in Anjialing No.1 Underground Mine,Shanxi Province,China. 展开更多
关键词 Mining-induced subsidence Numerical modeling Finite difference method(FDM) Distorted mesh Adaptive remeshing
下载PDF
Establishment and evaluation of an improved rat model of open abdomen
4
作者 Ye Liu Sicheng Li +5 位作者 Jinjian Huang Ze Li Kang Chen Guiwen Qu Xiuwen Wu Jianan Ren 《Animal Models and Experimental Medicine》 CAS CSCD 2024年第4期562-569,共8页
Introduction:This study aimed to establish an animal model of open abdomen(OA)through temporary abdominal closure via different techniques.Methods:Adult male Sprague-Dawley rats were randomly divided into three groups... Introduction:This study aimed to establish an animal model of open abdomen(OA)through temporary abdominal closure via different techniques.Methods:Adult male Sprague-Dawley rats were randomly divided into three groups:group A(OA with polypropylene mesh alone);group B(OA with polypro-pylene mesh combined with a patch);and group C(OA with polypropylene mesh and a sutured patch).Vital signs,pathophysiological changes,and survival rates were closely monitored in the rats for 7 days after surgery.Abdominal X-rays and histopathological examinations were performed to assess abdominal organ changes and wound healing.Results:The results showed no significant difference in mortality rates among the three groups(p>0.05).However,rats in group B exhibited superior overall condi-tion,cleaner wounds,and a higher rate of wound healing compared to the other groups(p<0.05).Abdominal X-rays indicated that varying degrees of distal intestinal obstruction in all groups.Histopathological examinations revealed fibrous hyperpla-sia,inflammatory cell infiltration,neovascularization,and collagen deposition in all groups.Group B demonstrated enhanced granulation tissue generation,neovasculari-zation,and collagen deposition compared to the other groups(p<0.05).Conclusions:Polypropylene mesh combined with patches is the most suitable method for establishing an animal model of OA.This model successfully replicated the patho-logical and physiological changes in postoperative patients with OA,specifically the progress of abdominal skin wound healing.It provides a practical and reliable animal model for OA research. 展开更多
关键词 animal models open abdomen PATCH polypropylene mesh
下载PDF
Resistance of full-scale beams against close-in explosions.Numerical modeling and field tests
5
作者 A.Prado A.Alañón +5 位作者 R.Castedo A.P.Santos L.M.López M.Chiquito M.Bermejo C.Oggeri 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第10期35-47,共13页
This paper explores the performances of a finite element simulation including four concrete models applied to a full-scale reinforced concrete beam subjected to blast loading. Field test data has been used to compare ... This paper explores the performances of a finite element simulation including four concrete models applied to a full-scale reinforced concrete beam subjected to blast loading. Field test data has been used to compare model results for each case. The numerical modelling has been, carried out using the suitable code LS-DYNA. This code integrates blast load routine(CONWEP) for the explosive description and four different material models for the concrete including: Karagozian & Case Concrete, Winfrith, Continuous Surface Cap Model and Riedel-Hiermaier-Thoma models, with concrete meshing based on 10, 15, and 20 mm. Six full-scale beams were tested: four of them used for the initial calibration of the numerical model and two more tests at lower scaled distances. For calibration, field data obtained employing pressure and accelerometers transducers were compared with the results derived from the numerical simulation. Damage surfaces and the shape of rupture in the beams have been used as references for comparison. Influence of the meshing on accelerations has been put in evidence and for some models the shape and size of the damage in the beams produced maximum differences around 15%. In all cases, the variations between material and mesh models are shown and discussed. 展开更多
关键词 Blast test Numerical simulation LS-DYNA Concrete model mesh effect Full-scale beams
下载PDF
Projection-Based Dimensional Reduction of Adaptively Refined Nonlinear Models
6
作者 Clayton Little Charbel Farhat 《Communications on Applied Mathematics and Computation》 EI 2024年第3期1779-1800,共22页
Adaptive mesh refinement (AMR) is fairly practiced in the context of high-dimensional, mesh-based computational models. However, it is in its infancy in that of low-dimensional, generalized-coordinate-based computatio... Adaptive mesh refinement (AMR) is fairly practiced in the context of high-dimensional, mesh-based computational models. However, it is in its infancy in that of low-dimensional, generalized-coordinate-based computational models such as projection-based reduced-order models. This paper presents a complete framework for projection-based model order reduction (PMOR) of nonlinear problems in the presence of AMR that builds on elements from existing methods and augments them with critical new contributions. In particular, it proposes an analytical algorithm for computing a pseudo-meshless inner product between adapted solution snapshots for the purpose of clustering and PMOR. It exploits hyperreduction—specifically, the energy-conserving sampling and weighting hyperreduction method—to deliver for nonlinear and/or parametric problems the desired computational gains. Most importantly, the proposed framework for PMOR in the presence of AMR capitalizes on the concept of state-local reduced-order bases to make the most of the notion of a supermesh, while achieving computational tractability. Its features are illustrated with CFD applications grounded in AMR and its significance is demonstrated by the reported wall-clock speedup factors. 展开更多
关键词 Adaptive mesh refinement(AMR) Computational fluid dynamics Energy-conserving sampling and weighting(ECSW) model order reduction Reduced-order model Supermesh
下载PDF
Meshing effects of the 3-D FEM numerical modeling in seismo-electromagnetics:An application in selectivity of seismic electric signal (SES)
7
作者 Qiao Wang Guangjing Xu Zhanhui Li Qinghua Huang 《Earthquake Science》 CSCD 2011年第6期565-576,共12页
We investigated how density and quality of mesh around interest domain affect electromagnetic (EM) responses of 3D Earth layered media using finite element method (FEM). Effect of different mesh shapes was also in... We investigated how density and quality of mesh around interest domain affect electromagnetic (EM) responses of 3D Earth layered media using finite element method (FEM). Effect of different mesh shapes was also investigated using a method of mixing structured and unstructured mesh. As a case study, we estimated the effects of meshing on selectivity phenomenon of seismic electric signal (SES). Our results suggest that the relative errors resulting from mesh effects may not be negligible, which may lead to some unconvincing explanation of the SES selectivity based on the numerical modeling results. 展开更多
关键词 3D electromagnetic numerical modeling FEM meshing SES
下载PDF
倾斜摄影Mesh模型与激光点云构建部件级城市三维模型
8
作者 衣鹏军 侯昊彤 +2 位作者 林敦灵 杨雪 李明月 《北京测绘》 2024年第4期526-531,共6页
为构建部件级城市实景三维(3D)模型,本文在倾斜网目(Mesh)模型建模和激光点云建模的技术上,探讨建筑物、部件以及城市场景模型建模的方法,并最终融合构建部件级城市实景3D模型,并应用于国家新型基础测绘北京试点-副中心运河两岸商务区实... 为构建部件级城市实景三维(3D)模型,本文在倾斜网目(Mesh)模型建模和激光点云建模的技术上,探讨建筑物、部件以及城市场景模型建模的方法,并最终融合构建部件级城市实景3D模型,并应用于国家新型基础测绘北京试点-副中心运河两岸商务区实景3D建模项目中,为北京市新型基础测绘建设提供一份力量。 展开更多
关键词 倾斜摄影mesh模型 激光点云 部件级 城市场景 城市三维模型
下载PDF
Three-dimensional magnetotellurics modeling using edgebased finite-element unstructured meshes 被引量:8
9
作者 刘长生 任政勇 +1 位作者 汤井田 严艳 《Applied Geophysics》 SCIE CSCD 2008年第3期170-180,共11页
Three-dimensional forward modeling magnetotellurics (MT) problems. We present a is a challenge for geometrically complex new edge-based finite-element algorithm using an unstructured mesh for accurately and efficien... Three-dimensional forward modeling magnetotellurics (MT) problems. We present a is a challenge for geometrically complex new edge-based finite-element algorithm using an unstructured mesh for accurately and efficiently simulating 3D MT responses. The electric field curl-curl equation in the frequency domain was used to deduce the H (curl) variation weak form of the MT forward problem, the Galerkin rule was used to derive a linear finite-element equation on the linear-edge tetrahedroid space, and, finally, a BI-CGSTAB solver was used to estimate the unknown electric fields. A local mesh refinement technique in the neighbor of the measuring MT stations was used to greatly improve the accuracies of the numerical solutions. Four synthetic models validated the powerful performance of our algorithms. We believe that our method will effectively contribute to processing more complex MT studies. 展开更多
关键词 Magnetotelluric modeling edge-based finite-element unstructured mesh local mesh refinement
下载PDF
Phase-field simulation of dendritic solidification using a full threaded tree with adaptive meshing 被引量:4
10
作者 Yin Yajun Zhou Jianxin +2 位作者 Liao Dunming Pang Shengyong Shen Xu 《China Foundry》 SCIE CAS 2014年第6期493-497,共5页
Simulation of the microstructure evolution during solidifi cation is greatly benefi cial to the control of solidifi cation microstructures. A phase-fi eld method based on the full threaded tree(FTT) for the simulation... Simulation of the microstructure evolution during solidifi cation is greatly benefi cial to the control of solidifi cation microstructures. A phase-fi eld method based on the full threaded tree(FTT) for the simulation of casting solidifi cation microstructure was proposed in this paper, and the structure of the full threaded tree and the mesh refi nement method was discussed. During dendritic growth in solidifi cation, the mesh for simulation is adaptively refi ned at the liquid-solid interface, and coarsened in other areas. The numerical results of a threedimension dendrite growth indicate that the phase-fi eld method based on FTT is suitable for microstructure simulation. Most importantly, the FTT method can increase the spatial and temporal resolutions beyond the limits imposed by the available hardware compared with the conventional uniform mesh. At the simulation time of 0.03 s in this study, the computer memory used for computation is no more than 10 MB with the FTT method, while it is about 50 MB with the uniform mesh method. In addition, the proposed FTT method is more effi cient in computation time when compared with the uniform mesh method. It would take about 20 h for the uniform mesh method, while only 2 h for the FTT method for computation when the solidifi cation time is 0.17 s in this study. 展开更多
关键词 SOLIDIFICATION phase-field model full threaded tree adaptive meshing
下载PDF
Analysis of lubrication performance for internal meshing gear pair considering vibration 被引量:3
11
作者 JIAN Guang-xiao WANG You-qiang +2 位作者 ZHANG Ping LI Yun-kai LUO Heng 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第1期126-139,共14页
The thermal elasto-hydrodynamic lubrication characteristics of the internal meshing gears in a planetary gear train under vibrations were examined considering the influence of the modification coefficient and time-var... The thermal elasto-hydrodynamic lubrication characteristics of the internal meshing gears in a planetary gear train under vibrations were examined considering the influence of the modification coefficient and time-varying meshing stiffness.Based on dynamic theory of the gear system,a dynamic model of the planetary gear train was established.The lubrication performances of modified gear systems under vibrations and static loads were analyzed.Compared with other transmission types,the best lubrication effect could be produced by the positive transmission.A thicker lubricating oil film could be formed,and the friction coefficient and oil film flash temperature are the smallest.Increasing modification coefficient improves the lubrication performance continuously but intensifies the engage-in and tooth-change impact.For the planetary and inner gears,the increase in the modification coefficient also leads a decrease in the oil film stiffness. 展开更多
关键词 internal meshing gears dynamic model modification coefficient lubrication performance oil film stiffness
下载PDF
Introduction to Mesh Based Generated Lumped Parameter Models for Electromagnetic Problems 被引量:2
12
作者 Shuo Yang Salim Asfirane +6 位作者 Sami Hlioui Smail Mezani Guillaume Krebs Yacine Amara Georges Barakat Mohamed Gabsi Wei Hua 《CES Transactions on Electrical Machines and Systems》 CSCD 2021年第2期152-162,共11页
This paper is an introduction to mesh based generated reluctance network modeling.An overview of scientific works which led to the development of this approach is first presented.Basic concepts of the approach are the... This paper is an introduction to mesh based generated reluctance network modeling.An overview of scientific works which led to the development of this approach is first presented.Basic concepts of the approach are then presented in the case of electromagnetic devices.A step-by-step procedure for coding the approach in the case of a flat linear permanent magnet machine is presented.Codes developed under MATLAB and Scilab environments are also included. 展开更多
关键词 Lumped parameter modeling finite element method mesh electromagnetic devices modelING
下载PDF
MODELING OF 3-D IMAGES AND SPACE MARKOV CUBIC MESH MODELS
13
作者 钱唯 《Journal of Electronics(China)》 1990年第3期280-284,共5页
Three-dimensional(3-D)Markov cubic random mesh models are presented andproved in the form of two theorems in details.Its applications to the modeling and description of3-D images are described.The model presented here... Three-dimensional(3-D)Markov cubic random mesh models are presented andproved in the form of two theorems in details.Its applications to the modeling and description of3-D images are described.The model presented here is a appropriate mathematical tool for thesegmentation,modeling,classification and other processing.Finally,an example is given. 展开更多
关键词 MARKOV CUBIC mesh model modeling 3-D IMAGE
下载PDF
Model of Random Polygon Particles for Concrete and Mesh Automatic Subdivision
14
作者 王宝庭 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2001年第4期36-40,共5页
In order to study the constitutive behavior of concrete in mesoscopic level, a new method is proposed in this paper. This method uses random polygon particles to simulate full grading broken aggregates of concrete. Ba... In order to study the constitutive behavior of concrete in mesoscopic level, a new method is proposed in this paper. This method uses random polygon particles to simulate full grading broken aggregates of concrete. Based on computational geometry, we carry out the automatic generation of the triangle finite element mesh for the model of random polygon particles of concrete. The finite element mesh generated in this paper is also applicable to many other numerical methods. 展开更多
关键词 CONCRETE random polygon particle model mesh automatic subdivision triangulation
下载PDF
A TWO-WAY INTERACTIVE MOVABLE NESTED MESH MODEL FOR TYPHOON TRACK PREDICTION
15
作者 王国民 王诗文 《Journal of Tropical Meteorology》 SCIE 1996年第2期155-162,共8页
ATWO-WAYINTERACTIVEMOVABLENESTEDMESHMODELFORTYPHOONTRACKPREDICTIONWangGuomin(王国民)(DepartmentofAtmosphericSci... ATWO-WAYINTERACTIVEMOVABLENESTEDMESHMODELFORTYPHOONTRACKPREDICTIONWangGuomin(王国民)(DepartmentofAtmosphericSciences,NanjingUniv... 展开更多
关键词 TYPHOON TRACK numerical model FORECAST two-way movable nested mesh
下载PDF
Hybrid Surface Mesh Adaptation for Climate Modeling
16
作者 Ahmed Khamayseh Valmor de Almeida Glen Hansen 《Numerical Mathematics(Theory,Methods and Applications)》 SCIE 2008年第4期410-434,共25页
Solution-driven mesh adaptation is becoming quite popular for spatial error control in the numerical simulation of complex computational physics applications,such as climate modeling.Typically,spatial adaptation is ac... Solution-driven mesh adaptation is becoming quite popular for spatial error control in the numerical simulation of complex computational physics applications,such as climate modeling.Typically,spatial adaptation is achieved by element subdivision (h adaptation) with a primary goal of resolving the local length scales of interest.A sec- ond,less-popular method of spatial adaptivity is called'mesh motion'(r adaptation); the smooth repositioning of mesh node points aimed at resizing existing elements to capture the local length scales.This paper proposes an adaptation method based on a combination of both element subdivision and node point repositioning (rh adaptation). By combining these two methods using the notion of a mobility function,the proposed approach seeks to increase the flexibility and extensibility of mesh motion algorithms while providing a somewhat smoother transition between refined regions than is pro- duced by element subdivision alone.Further,in an attempt to support the requirements of a very general class of climate simulation applications,the proposed method is de- signed to accommodate unstructured,polygonal mesh topologies in addition to the most popular mesh types. 展开更多
关键词 surface mesh generation mesh adaptation mesh optimization climate modeling.
下载PDF
A Bogus Typhoon Scheme and Its Application to a Movable Nested Mesh Model
17
作者 王国民 王诗文 李建军 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1996年第1期103-114,共12页
A bogus typhoon scheme,designed for the initialization of a typhoon track prediction model,is developed in thispaper.This scheme includes both effects of axisymmetric wind and asymmetric wind.Experimental forecasts us... A bogus typhoon scheme,designed for the initialization of a typhoon track prediction model,is developed in thispaper.This scheme includes both effects of axisymmetric wind and asymmetric wind.Experimental forecasts using atwo-way interactive movable nested mesh model show that the forecast skill of typhoon tracks has clearly improvedafter introducing the bogus typhoon into the initial fields. 展开更多
关键词 Bogus typhoon Track forecast Nested mesh model
下载PDF
Method of triangular mesh modeling in numerical control machining simulation
18
作者 马志艳 陈幼平 +1 位作者 李建军 赵遥劲 《Journal of Central South University》 SCIE EI CAS 2010年第5期1021-1027,共7页
In the process of numerical control machining simulation,the workpiece surface is usually described with the uniform triangular mesh model.To alleviate the contradiction between the simulation speed and accuracy in th... In the process of numerical control machining simulation,the workpiece surface is usually described with the uniform triangular mesh model.To alleviate the contradiction between the simulation speed and accuracy in this model,two improved methods,i.e.,the local refinement triangular mesh modeling method and the adaptive triangular mesh modeling method were presented.The simulation results show that when the final shape of the workpiece is known and its mathematic representation is simple,the local refinement triangular mesh modeling method is preferred;when the final shape of the workpiece is unknown and its mathematic description is complicated,the adaptive triangular mesh modeling method is more suitable.The experimental results show that both methods are more targeted and practical and can meet the requirements of real-time and precision in simulation. 展开更多
关键词 numerical control machining triangular mesh model SIMULATION
下载PDF
Mesh Force Modelling and Parametric Studies for Compound Oscillatory Roller Reducer
19
作者 Changxu Wei Chaosheng Song +2 位作者 Caichao Zhu Chengcheng Liang Long Hu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2021年第4期151-167,共17页
A compound oscillatory roller reducer(CORR)with a first-stage gear transmission and a second-stage oscillatory roller transmission is presented.The transmission principle of oscillatory roller transmission is introduc... A compound oscillatory roller reducer(CORR)with a first-stage gear transmission and a second-stage oscillatory roller transmission is presented.The transmission principle of oscillatory roller transmission is introduced,and the tooth profile equation of the inner gear is derived.The analytical model of mesh force considering the installation errors and manufacturing errors is proposed.Then,parametric studies considering different errors on the mesh force are conducted.Results show that the design parameters are significant factors for mesh force.The mesh force is reduced by 17%as the eccentricity of disk cam increases from 2.5 mm to 4 mm.When the radius of the movable roller increases from 7 mm to 20 mm,the mesh force decreases by 8%.As the radius of disk cam increases from 125 mm to 170 mm,the mesh force is decreased by 26.5%.For the impacts of errors,the mesh force has a noticeable fluctuation when these errors exist including the manufacturing error of disk cam,the installation error of disk cam and the manufacturing error of movable roller change.The prototype of the reducer is manufactured and preliminary run-in test proved the feasibility of the transmission principle. 展开更多
关键词 Compound oscillatory roller reducer Kinematic principle mesh force modelling Misalignments Parametric study
下载PDF
Mesh model building and migration and accumulation simulation of 3D hydrocarbon carrier system
20
作者 GUO Qiulin LIU Jifeng +6 位作者 CHEN Ningsheng WU Xiaozhi REN Hongjia WEI Yanzhao CHEN Gang GONG Deyu YUAN Xuanjun 《Petroleum Exploration and Development》 2018年第6期1009-1022,共14页
Migration and accumulation simulation of oil and gas in carrier systems has always been a difficult subject in the quantitative study of petroleum geology. In view of the fact that the traditional geological modeling ... Migration and accumulation simulation of oil and gas in carrier systems has always been a difficult subject in the quantitative study of petroleum geology. In view of the fact that the traditional geological modeling technology can not establish the interrelation of carriers in three dimensional space, we have proposed a hybrid-dimensional mesh modeling technology consisting of body(stratum), surfaces(faults and unconformities), lines and points, which provides an important research method for the description of geometry of sand bodies, faults and unconformities, the 3 D geological modeling of complex tectonic areas, and the simulation of hydrocarbon migration and accumulation. Furthermore, we have advanced a 3 D hydrocarbon migration pathway tracking method based on the hybrid-dimensional mesh of the carrier system. The application of this technology in western Luliang Uplift of Junggar Basin shows that the technology can effectively characterize the transport effect of fault planes, unconformities and sand bodies, indicate the hydrocarbon migration pathways, simulate the process of oil accumulation, reservoir adjustment and secondary reservoir formation, predict the hydrocarbon distribution. It is found through the simulation that the areas around the paleo-oil reservoir and covered by migration pathways are favorable sites for oil and gas distribution. 展开更多
关键词 oil and gas MIGRATION and accumulation CARRIER SYSTEM hybrid-dimensional mesh MIGRATION pathway geological modeling mesh generation JUNGGAR Basin western Luliang UPLIFT
下载PDF
上一页 1 2 97 下一页 到第
使用帮助 返回顶部