摘要
针对运输类飞机设计过程中的巡航阻力准确预测问题,采用基于多块结构网格求解三维雷诺平均Navier-Stokes方程的并行流动求解器"CCFTD-MB",对AIAA阻力预测小组提供的典型运输类飞机DLR_F6翼身构型进行了CFD计算分析,比较了不同规模网格及不同湍流模型对计算结果的影响;并通过与DLR_F4翼身构型计算结果及相关文献结果的综合分析,修正了DLR_F6翼身构型设引巡航点的试验阻力。计算结果表明:DLR_F6翼身构型的CFD计算结果更为可靠;CCFD-MB求解器计算精度高;C FD技术对于风洞试验验证有积极意义。
For the accurate prediction of cruise drag in transport designing, a CFD analysis for the typical transport aircraft DLR_F6 wing-body configuration which was supplied by AIAA drag prediction workshop is put in practice, with ＂CCFD-MB＂, a large parallelized Reynolds averaged Navier-Stokes solver for multi-block structured grid; the effects of different meshes and different turbulence models on calculation results are compared; then a correction on DLR_F6 wing-body cruise drag which is from wind tunnel test is performed through comprehensive analysis of DLR F4 wing-body and relevant literature＇s results. It shows that the CFD results of DLR_F6 wing-body are more reliable than test data; CCFD-MB is an accurate flow solver and CFD is very positive for verifying the tunnel experiment.
出处
《航空工程进展》
2011年第4期402-408,共7页
Advances in Aeronautical Science and Engineering
基金
国家高技术研究发展计划资助(2009AA01A139)
