基于放大因子与Spalart-Allmaras湍流模型的转捩预测

史亚云; 白俊强; 华俊; 杨体浩

doi:10.13224/j.cnki.jasp.2015.07.019

基于放大因子与Spalart-Allmaras湍流模型的转捩预测

doi: 10.13224/j.cnki.jasp.2015.07.019

1. 西北工业大学航空学院, 西安 710072;
2. 中国航空工业集团公司中国航空研究院, 北京 100012

基金项目:

国家重点基础研究发展计划(2014CB744804)

详细信息

作者简介:
史亚云(1990-),女,陕西延安人,博士生,主要从事转捩方面研究.

中图分类号: V211
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- 文章访问数: 1186
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- 被引次数: 0
出版历程
- 收稿日期: 2015-01-04
- 刊出日期: 2015-07-28

Transition prediction based on amplification factorand Spalart-Allmaras turbulence model

1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072;
2. Chinese Aeronautical Establishment, Aviation Industry Corporation of China, Beijing 100012, China

摘要

摘要: 为了验证放大因子输运方程与Spalart-Allmaras(S-A)湍流模型耦合对转捩现象的模拟精度,选取Schubauer and Klebanoff(S-K)平板、S809低速翼型、30p30n多段翼型以及复杂的三维HiLiftPW-1构型进行自由转捩计算,并将计算结果与实验进行比较分析,其中针对S809算例,还与Langtry-Menter(L-M)转捩模型进行了比较.算例结果表明:放大因子输运方程与S-A湍流模型的耦合能够较好的捕捉转捩位置以及转捩发展过程,对分离泡诱导的转捩的模拟相比L-M转捩模型更精确,转捩位置的捕捉精度提升了10%;对比实验,多段翼转捩位置的捕捉误差最大为6.5%;针对三维高升力增升构型,以实验作为参考,全湍流计算与考虑边界层转捩的对比显示考虑边界层转捩能够更加精确的模拟气动力系数,升力和表面摩擦阻力系数的模拟精度精度提升1%.
- 转捩 /
- 放大因子 /
- 输运方程 /
- 湍流模型 /
- 边界层 /
- 并行计算
Abstract: To verify the simulation accuracy of current model coupling amplification factor transport equation with Spalart-Allmaras (S-A) turbulence model, Schubauer and Klebanoff flat plate (S-K), S809 low speed airfoil, 30p30n multi-element airfoil and complicated 3-D HiLiftPW-1 configure were selected for free transition calculation, and then, simulation results were compared with experimental results. Separately, current coupling model was compared with Langtry-Menter (L-M)transition model for S809 test cases. Test examples indicate that current coupling transition model can basically capture transition location and transition process, meanwhile, current coupling model performs better than L-M transition model in separated flow transition, and simulation accuracy increases by 10%; the maximum error of multi-element airfoil's transition position simulated is 6.5% compared with experiment data. For three dimensional high-lift configuration, comparison between full turbulence and free transition shows that considering boundary layer transition can simulate aerodynamic force coefficient more accurately and accuracy is promoted by 1%.
- transition /
- amplification factor /
- transport equation /
- turbulence model /
- boundary layer /
- parallelized computation

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