THE TRANSIENT AERODYNAMIC CHARACTERISTICS AROUND VANS RUNNING INTO A ROAD TUNNEL

作     者：LI Li DU Guang-sheng LIU Zheng-gang LEI Li LI Li,DU Guang-sheng,LIU Zheng-gang,LEI Li School of Energy and Power Engineering,Shandong University,Jinan 250061,China

作者机构：School of Energy and Power Engineering Shandong University Jinan 250061 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2010年第22卷第2期

页      面：283-288页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10802042) the NaturalScience Foundation of Shandong Province (Grant No.Y2007A04) 

主　　题：dynamic mesh technique transient aerodynamic characteristic road tunnel 

摘      要：In this article,the processes of vans running into a one-way two-lane road tunnel are simulated numerically using the dynamic mesh technique and RNG k ？ ε turbulence *** transient aerodynamic characteristics around vans are obtained in three cases：a single van,two vans side-by-side and two vans one after another running into the tunnel,*** a comparison with the results of the wind tunnel experiment,the transient simulation method is *** results show that,when a van runs into the tunnel,the aerodynamic drag coefficient increases near the tunnel entrance,and after entering the tunnel,the side force is generated,pointing to the tunnel wall nearer to the *** two vans run into the tunnel side-by-side,their drag coefficients increase by 50%,and the side force varies sharply with directions changing twice near the tunnel *** two vans run into tunnel one after another,the aerodynamic characteristics around the van in the front is similar to that of a single van,but the aerodynamic forces on the van behind do not have obvious *** the three cases,the aerodynamic forces have a sharp change when two vans run side-by-side,so driving side-by-side into a tunnel should be avoided for safety.