本文選題：RANS方程　切入點：網(wǎng)格拓撲　出處：《航空學報》2017年02期

【摘要】：基于TRIP3.0軟件平臺和多塊結構網(wǎng)格技術,開展了控制方程和網(wǎng)格拓撲等因素對DLR-F6構型數(shù)值模擬的影響研究。數(shù)值計算采用與試驗相同的參數(shù),采用了RANS/TLNS方程,生成了O型和H型2種拓撲的粗、中、細網(wǎng)格進行模擬。分別從氣動特性、壓力系數(shù)分布曲線和表面流態(tài)3個方面對結果進行分析。通過與試驗數(shù)據(jù)的對比表明,在模擬小分離流動時,采用H型拓撲網(wǎng)格和RANS方程模型,獲得的計算結果會更為準確。
[Abstract]:Based on TRIP3.0 software platform and multi-block grid technology, the effects of control equations and grid topology on the numerical simulation of DLR-F6 configuration are studied.The parameters of the numerical calculation are the same as those of the experiment, and the RANS/TLNS equation is adopted. The coarse, medium and fine meshes of O type and H type topologies are generated for simulation.The results are analyzed from three aspects: aerodynamic characteristics, pressure coefficient distribution curve and surface flow state.By comparing with the experimental data, it is shown that the calculation results obtained by using H-type topological mesh and RANS equation model are more accurate when small separated flow is simulated.
【作者單位】： 國防科學技術大學航天科學與工程學院;中國空氣動力研究與發(fā)展中心計算空氣動力學研究所;
【基金】：國家重點研發(fā)計劃(2016YFB0200700)~~
【分類號】：V211
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本文編號：1714575