直角拐弯通道中空气冲击波的传播及数值模拟  

Propagation of air shock wave in rectagular bend tunnel and its numerical simulation

作　　者：王来[1] 李廷春[2] 

机构地区：[1]天津大学建工学院,天津300072 [2]山东科技大学土建学院,山东泰安271019

出　　处：《自然灾害学报》2004年第4期146-150,共5页Journal of Natural Disasters

基　　金：国家自然科学基金重点资助项目(59939190);国家自然科学基金资助项目(50004007)

摘　　要：针对地下通道中空气冲击波的传播,通过试验研究,得到了空气冲击波在直角拐弯通道中传播的衰减系数。同时,应用流体网格法进行了数值模拟,获得了通道直角拐弯前后空气冲击波传播的波形图和流场图。并将两方面的研究成果进行了对比,证明了试验和数值研究方法及研究成果的一致性。This paper does research on shock wave propagation in tunnel. Decaying factors of shock wave propagation in rectangular bend tunnel were obtained by experimental research. Then fluid-in-cell(FLIC) method is applied to simulate the same problem, overpressure oscillogram and overpressure graph of flow field before and behind the bend were got. By comparison, the results from calculation and experiment were consistent. Then,research findings of the calculation and the experiment are proved to be reliable.

关 键 词：空气冲击波 直角转弯通道 流体网格方法 数值模拟 

分 类 号：O354.5[理学—流体力学]