The salt conservation law was applied, for the first time, in order to compare the real and calculated values of water outflow (m3/s) and residence time (days) in the lagoons of Ayla Oasis at the northernmost tip of t...The salt conservation law was applied, for the first time, in order to compare the real and calculated values of water outflow (m3/s) and residence time (days) in the lagoons of Ayla Oasis at the northernmost tip of the Gulf of Aqaba. The aim is to obtain the scientific bases of monitoring beside the real observation in areas that could not be measured directly by the current meters. The real measurements of water current by Acoustic Doppler Current Profiler (ADCP) workhorse 600 kHz, salinity and density by the Conductivity, Temperature and Depth meter (CTD 19plusV2), were collected during the period June 2012-May 2013. The statistical analysis was performed using Statview (5.0) software. The results revealed highly significant correlation between the real and calculated values for both water flow (r = 0.90;P = 0.0001) and residence time (r = 0.89;P 3/s) and residence time (0.80 ± 0.72 days) should be taken into consideration to correct the calculated values.展开更多
Numerical modeling of salt tectonics is a rapidly evolving field; however, the constitutive equations to model long-term rock salt rheology in nature still remain controversial. Firstly, we built a database about the ...Numerical modeling of salt tectonics is a rapidly evolving field; however, the constitutive equations to model long-term rock salt rheology in nature still remain controversial. Firstly, we built a database about the strain rate versus the differential stress through collecting the data from salt creep experiments at a range of temperatures（20–200 ℃） in laboratories. The aim is to collect data about salt deformation in nature, and the flow properties can be extracted from the data in laboratory experiments.Moreover, as an important preparation for salt tectonics modeling, a numerical model based on creep experiments of rock salt was developed in order to verify the specific model using the Abaqus package. Finally, under the condition of low differential stresses, the deformation mechanism would be extrapolated and discussed according to microstructure research. Since the studies of salt deformation in nature are the reliable extrapolation of laboratory data, we simplified the rock salt rheology to dislocation creep corresponding to power law creep（n = 5） with the appropriate material parameters in the salt tectonic modeling.展开更多
Based on the practical basis of measured activities and phase diagrams aswell as in the light of the mass action law. the model of inseparable cations and anions of moltensalts and mattes, and the annexation principle...Based on the practical basis of measured activities and phase diagrams aswell as in the light of the mass action law. the model of inseparable cations and anions of moltensalts and mattes, and the annexation principle of two kinds of solutions in binary melts, thecalculating model of mass action concentrations of molten salts CaCl_2-MgCl_2-NaCl was formulated.The results of calculation not only agree with experimental values, but also obey the mass actionlaw, testifying that the model formulated can embody the structural characteristics of these ternarysalts, and that the model of inseparable cations and anions as well as the annexation principle oftwo kinds of solutions in binary melts are also applicable to these ternary salts.展开更多
A linear stability analysis is applied to a system consisting of a linear magneto-fluid layer overlying a porous layer affected by rotation and salt concentration on both layers. The flow in the fluid layer is governe...A linear stability analysis is applied to a system consisting of a linear magneto-fluid layer overlying a porous layer affected by rotation and salt concentration on both layers. The flow in the fluid layer is governed by Navier-Stokes’s equations and while governed by Darcy-Brinkman’s law in the porous medium. Numerical solutions are obtained using Legendre polynomials. These solutions are studied through two modes of instability: stationary instability and overstability when the heat and the salt concentration are effected from above and below.展开更多
文摘The salt conservation law was applied, for the first time, in order to compare the real and calculated values of water outflow (m3/s) and residence time (days) in the lagoons of Ayla Oasis at the northernmost tip of the Gulf of Aqaba. The aim is to obtain the scientific bases of monitoring beside the real observation in areas that could not be measured directly by the current meters. The real measurements of water current by Acoustic Doppler Current Profiler (ADCP) workhorse 600 kHz, salinity and density by the Conductivity, Temperature and Depth meter (CTD 19plusV2), were collected during the period June 2012-May 2013. The statistical analysis was performed using Statview (5.0) software. The results revealed highly significant correlation between the real and calculated values for both water flow (r = 0.90;P = 0.0001) and residence time (r = 0.89;P 3/s) and residence time (0.80 ± 0.72 days) should be taken into consideration to correct the calculated values.
基金RWTH Aachen UniversityChina University of Petroleum for the support of the work+1 种基金funded by the startup project of China University of Petroleum, Beijing (No.2462014YJRC041)supported by Science Foundation of China University of Petroleum, Beijing (No. C201601)
文摘Numerical modeling of salt tectonics is a rapidly evolving field; however, the constitutive equations to model long-term rock salt rheology in nature still remain controversial. Firstly, we built a database about the strain rate versus the differential stress through collecting the data from salt creep experiments at a range of temperatures（20–200 ℃） in laboratories. The aim is to collect data about salt deformation in nature, and the flow properties can be extracted from the data in laboratory experiments.Moreover, as an important preparation for salt tectonics modeling, a numerical model based on creep experiments of rock salt was developed in order to verify the specific model using the Abaqus package. Finally, under the condition of low differential stresses, the deformation mechanism would be extrapolated and discussed according to microstructure research. Since the studies of salt deformation in nature are the reliable extrapolation of laboratory data, we simplified the rock salt rheology to dislocation creep corresponding to power law creep（n = 5） with the appropriate material parameters in the salt tectonic modeling.
文摘Based on the practical basis of measured activities and phase diagrams aswell as in the light of the mass action law. the model of inseparable cations and anions of moltensalts and mattes, and the annexation principle of two kinds of solutions in binary melts, thecalculating model of mass action concentrations of molten salts CaCl_2-MgCl_2-NaCl was formulated.The results of calculation not only agree with experimental values, but also obey the mass actionlaw, testifying that the model formulated can embody the structural characteristics of these ternarysalts, and that the model of inseparable cations and anions as well as the annexation principle oftwo kinds of solutions in binary melts are also applicable to these ternary salts.
文摘A linear stability analysis is applied to a system consisting of a linear magneto-fluid layer overlying a porous layer affected by rotation and salt concentration on both layers. The flow in the fluid layer is governed by Navier-Stokes’s equations and while governed by Darcy-Brinkman’s law in the porous medium. Numerical solutions are obtained using Legendre polynomials. These solutions are studied through two modes of instability: stationary instability and overstability when the heat and the salt concentration are effected from above and below.
