基于风洞试验和数值模拟的超临界机翼雷诺数修正方法研究
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摘要
结合风洞试验方法和数值模拟,对采用超临界机翼的大型飞机进行雷诺数影响规律研究。对比分析了不同雷诺数下的试验结果和数值模拟结果,在此基础上研究了基于数值模拟结果的雷诺数修正方法,将低雷诺数试验结果向高雷诺数进行修正。修正结果与相应雷诺数试验结果相比,阻力系数相差不超过0.0004,升阻比最大误差约为0.2。针对于力矩系数修正误差问题进行了修正方法改进,改进后的修正误差从0.01降为0.001,表明了修正结果在飞行雷诺数下的适用性。
The effects of Reynolds number on aerodynamic characteristics of large aircraft with supercritical wing are studied using wind tunnel test and numerical method.Based on the comparison and analysis between wind tunnel test results and numerical results,the latter are used in the correction of low Reynolds number test results for a high Reynolds number result.The corrected data are compared with the test data for the same Reynolds number.The differences of drag coefficient are less than 0.0004.The maximum difference of lift-drag ratio is approximately 0.2,and the differences of moment coefficient are less than 0.001.
The effects of Reynolds number on aerodynamic characteristics of large aircraft with supercritical wing are studied using wind tunnel test and numerical method.Based on the comparison and analysis between wind tunnel test results and numerical results,the latter are used in the correction of low Reynolds number test results for a high Reynolds number result.The corrected data are compared with the test data for the same Reynolds number.The differences of drag coefficient are less than 0.0004.The maximum difference of lift-drag ratio is approximately 0.2,and the differences of moment coefficient are less than 0.001.
引文
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[18]Wu X J,Ma M S,Deng Y Q,et al.Two turbulence models for the computation of transonic flow[J].Acta Aerodynamica Sinica,2008,26(1):85-90.(in Chinese)吴晓军,马明生,邓有奇,等.两种湍流模型在跨声速绕流计算的应用研究[J].空气动力学学报,2008,26(1):85-90.
[2]Pettersson K,Rizzi A.Aerodynamic scaling to free flight conditions:past and present[J].Progress in Aerospace Sciences,2008,44(2):295-313.
[3]Rudnik R,Germain E.Reynolds number scaling effects on the European high-lift project configurations[J].Journal of Aircraft,2009,46(4):1140-1152.
[4]Chen D H,Lin J,Guo D P.Technical ways to solve high speed key aerodynamic problems of large air transporters[J].Experiments and Measurements In Fluid Mechanics,2004,18(2):1-5.(in Chinese)陈德华,林俊,郭旦平,等.大型飞机高速气动力关键问题解决的技术手段及途径[J].流体力学实验与测量,2004,18(2):1-5.
[5]Haines A B,Young A D.Scale effects on aircraft and weapon aerodynamics[R].AGARD AG-323,1994.
[6]Om D,Curtin M M,Bogue D R,et al.Reynolds number effects on a subsonic transport at transonic conditions[R].AIAA 2001-0909.
[7]Quest J,Martin C N.Wright,stephen rolston.investigation of a modern transonic transport aircraft configuration over a large range of reynolds numbers[R].AIAA 2002-0422.
[8]Pettersson K,Rizzi A.Estimating Reynolds number scaling and wind tunnel boom effects with the help of CFD methods[R].AIAA 2006-3162.
[9]Favaregh N M,Tyler E D.Design of Experiments and CFDapplication to Reynolds number effect[R].AIAA 2012-0766.
[10]Said M,Mat S,Mansor S.Reynolds number effects on flow topology above blunt-edge delta wing VFE-2confgurations[R].AIAA 2015-1229.
[11]Zhang P H,Zhou N C,Deng Y Q,et al.The effects of Reynolds number on airplane aerodynamic characteristics[J].Acta Aerodynamica Sinica,2012,30(6):693-698.(in Chinese)张培红,周乃春,邓有奇,等.雷诺数对飞机气动特性的影响研究[J].空气动力学学报,2012,30(6):693-698.
[12]Zhang H,Li J,Gong Z B.Drag correction to high Reynolds number for a transport aircraft[J].Flight Dynamics,2012,30(1):20-24.(in Chinese)张辉,李杰,龚志斌.某运输机全机构型雷诺数效应阻力修正研究[J].飞行力学,2012,30(1):20-24.
[13]Zhang Y B,Zhou N C,Chen J T.Numerical investigation of Reynolds number effects on a low-aspect-ratio flying-wing model[J].Acta Aerodynamica Sinica,2015,33(3):279-288.(in Chinese)张耀冰,周乃春,陈江涛.小展弦比飞翼标模雷诺数影响数值模拟研究[J].空气动力学学报,2015,33(3):279-288.
[14]Li Z W,Liang Y H.Numerical simulations of Reynolds number effect on flow characteristics at high-lift devices[J].Flight Dynamics,2014,32(1):10-14.(in Chinese)李中武,梁益华.增升装置低速流动特性的雷诺数效应计算研究[J].飞行力学,2014,32(1):10-14.
[15]Elsenaar A,Biniont J,Stanewsky E.Reynolds number effects in transonic flow[R].AGARD AG-30,1988.
[16]Zhu Z Q.Application of computational fluid dynamics[M].Beijing:Beihang University Press,1998.(in Chinese)朱自强.应用计算流体力学[M].北京:北京航空航天大学出版社,1998.
[17]Mou B,Xiao Z Y,Zhou Z.Application and investigation of multiblock multigrid method in complicated viscous flow fields calculation[J].Acta Aerodynamica Sinica,2006,24(1):51-54,56.(in Chinese)牟斌,肖中云,周铸,等.多重网格技术在复杂黏性流场计算中的应用及研究[J].空气动力学学报,2006,24(1):51-54,56.
[18]Wu X J,Ma M S,Deng Y Q,et al.Two turbulence models for the computation of transonic flow[J].Acta Aerodynamica Sinica,2008,26(1):85-90.(in Chinese)吴晓军,马明生,邓有奇,等.两种湍流模型在跨声速绕流计算的应用研究[J].空气动力学学报,2008,26(1):85-90.
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