CAJ | 학술논문

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“CCFD-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，比较了小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翼身构型设计巡航点的试验阻力。计算结果表明：DLR_F6翼身构型的CFD计箅结果更为可靠；CCFD-MB求解器计算精度高；CFD技术对于风洞试验验证具有积极意义。
침대운수류비궤설계과정중적순항조력준학예측문제，채용기우다괴결구망격구해삼유뢰낙평균Navier-Stokes방정적병행류동구해기“CCFD-MB”，대AIAA조력예측소조제공적전형운수류비궤DLR—F6익신구형진행료CFD계산분석，비교료소동규모망격급불동단류모형대계산결과적영향；병통과여DLR-F4익신구형계산결과급상관문헌결과적종합분석，수정료DLR_F6익신구형설계순항점적시험조력。계산결과표명：DLR_F6익신구형적CFD계폐결과경위가고；CCFD-MB구해기계산정도고；CFD기술대우풍동시험험증구유적겁의의。
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.