流体力学与飞行力学

亚临界圆柱绕流的DES方法比较

  • 唐虎 ,
  • 常士楠 ,
  • 成竹 ,
  • 马兰
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  • 1. 北京航空航天大学 航空科学与工程学院, 北京 100083;
    2. 中国飞机强度研究所, 西安 710065

收稿日期: 2016-04-07

  修回日期: 2016-05-27

  网络出版日期: 2016-06-07

基金资助

国家自然科学基金(11372026);中国航空工业集团公司技术创新基金(2013F62302)

Comparison of detached eddy simulation schemes on a subcritical flow around circular cylinder

  • TANG Hu ,
  • CHANG Shinan ,
  • CHENG Zhu ,
  • MA Lan
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  • 1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China;
    2. Aircraft Strength Research Institute of China, Xi'an 710065, China

Received date: 2016-04-07

  Revised date: 2016-05-27

  Online published: 2016-06-07

Supported by

National Natural Science Foundation of China (11372026); Technique Innovation Foundation of Aviation Industry Corporation of China (2013F62302)

摘要

针对地面结冰试验设施喷雾系统尾迹湍流模拟需求,考察了3种脱体涡模拟(DES)方法对三维亚临界圆柱绕流预测的准确性,比较和分析了瞬时流动特征和流场统计量。研究发现:1)从瞬时流动特征来看,k-ω雷诺平均Navier-Stokes(RANS)控制的区域对剪切应力输运k-ω DES(SST k-ω DES)求解的准确性有显著影响;2)从流动参数统计量的误差范围来看,回流区长度和流向最小速度的预测质量能在一定程度上反应圆柱绕流数值模拟的准确性;3)综合比较,SST k-ω DES预测值与试验值和大涡模拟(LES)数据最为吻合,具有应用于地面结冰试验设施喷雾系统尾迹湍流计算的潜力。

本文引用格式

唐虎 , 常士楠 , 成竹 , 马兰 . 亚临界圆柱绕流的DES方法比较[J]. 航空学报, 2017 , 38(3) : 120294 -120294 . DOI: 10.7527/S1000-6893.2016.0174

Abstract

Considering the requirements of simulating the flow around spray system in ground based icing test facilities, the accuracy of three detached eddy simulation (DES) schemes applied to three-dimensional subcritical flow around circular cylinder was examined through the comparison and analysis of instantaneous flow characteristics and flow statistic parameters. It is found that, from the point of instantaneous flow characterization, the k-ω Reynolds averaged Navier-Stokes (RANS) branch has remarkable influence on the accuracy of shear stress transport k-ω DES (SST k-ω DES). From the point of error range in flow statistics, the length of recirculation region and streamwise minimum velocity are the key parameters which determine the accuracy of numerical simulation on flow around circular cylinder. Compared comprehensively, the instantaneous flow characteristics and flow statistics obtained from SST k-ω DES have well agreements with the data of experiments and large eddy simulation (LES), which thus has the potential of being applied to computing the wake turbulence of spray system in ground based icing test facilities.

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