移动带系统升力实验与数值研究

Experimental and Numerical Studies on the Lift Force of Moving-Belt System

摘要:

为了解移动带系统对升力测量结果的影响，对空载时移动带系统所产生升力进行实验测量和数值计算。两者得到的升力相差很小，表明所使用的数值计算方法具有可行性。利用该方法分析移动带系统与车型的关系，通过数值计算了解到，对于不同车型，移动带系统给车身升力系数测量带来的影响均在0.040左右。风洞实验可利用该关系对测量结果进行修正。

Abstract:

In order to study moving-belt system’s effect on measurement of lift force, no load test of moving-belt system was carried out by wind tunnel test and numerical simulation and their results were compared. The agreement of lift force results from the wind tunnel test and numerical simulation indicates that the test results and numerical results can be validated each other, and the numerical simulation is feasible. The relationship between moving-belt system and vehicle body shape was studied by using this way. The result shows that for different vehicles, the moving-belt system’s effect on measurement of lift force is almost the same. The △CL is about 0.040 . We can use these relationships to revise the test result of lift force.