摘要
针对煤矿巷道中存在瓦斯浓度梯度的问题,基于时间上的TVD Runge-Kutta格式,空间上的5阶加权本质无振荡(WENO)格式离散控制方程组,自主研发了高精度大规模的并行计算程序.利用该程序模拟了煤矿巷道中的爆轰波的传播过程.研究结果得出了纵向和横向浓度梯度对瓦斯爆炸的影响规律,模拟结果与理论分析结果基本吻合.
According to time-based TVD Runge-Kutta scheme and discretizing governing equations with 5-th order WENO scheme,a high resolution and large scale parallel code was independently developed. With this code, numerical simulation was performed for the propagation characteristics of methane detonation wave in the pipe with concentration gradient.The numerical results show the influence of vertical and horizontal concentration gradient on methane explosion.The numerical simulation results agree well with the theoretical analysis.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2015年第4期336-340,共5页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(8132034)
国家教育部高等学校博士学科点专项科研基金(博导类)资助课题(20121101110004)
关键词
瓦斯爆炸
高精度计算
爆轰波
WENO格式
methane explosion
high resolution simulation
detonation wave
WENO scheme
