赵勇,高云,王天霖,邹丽.逆压梯度边界层未分离情况下的湍流模式适用性研究
Turbulence model applicability for boundary layer flow with adverse pressure gradient in attached case[J].计算力学学报,2016,33(3):357~361 |
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逆压梯度边界层未分离情况下的湍流模式适用性研究
Turbulence model applicability for boundary layer flow with adverse pressure gradient in attached case |
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| 投稿时间：2015-01-26 修订日期：2015-05-02 |
| DOI：10.7511/jslx201603012 |
| 中文关键词: 逆压梯度边界层 RANS 湍流模式 适用性 湍动能 |
| 英文关键词:boundary layer with adverse pressure gradient RANS turbulence models applicability turbulent kinetic energy |
| 基金项目:国家自然科学基金(51309040,51209027,51379025,51379033);上海交通大学海洋工程国家重点实验室开放课题研究基金(1402);工业装备结构分析国家重点实验室(大连理工大学)开放课题研究基金(GZ15214);西南石油大学青年教师过学术关基金(201499010114);中央财政支持地方特色重点学科青年基金(YC319);中央高校基本科研业务费基础培育基金(DMU3132015089)资助项目. |
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| 中文摘要: |
| 边界层逆压梯度作用下的流动是许多工程中的一个基础问题,由于逆压梯度作用,流动形态复杂,使得数值模拟有很大的难度。基于雷诺平均纳维-斯托克斯RANS(Reynolds Averaged Navier-Stokes)方程对二维平板逆压梯度边界层作数值计算研究,选取6种代表性的湍流模式,得到局部摩擦系数的数值解,与实验值比较,发现k-ω模式具有很好的精度。基于该湍流模式,给出了湍动能分布,该结果有助于认识逆压梯度边界层流动的复杂特征。 |
| 英文摘要: |
| Boundary layer flow with adverse pressure gradients (APG) is a basic problem in many engineering applications.Due to APG,the flow becomes complex and is difficult to be simulated by numerical method.In the present paper,a numerical study of two-dimensional boundary layer flow with APG is conducted based on Reynolds-averaged Navier-Stokes(RANS) equations.Six representative turbulence models are evaluated for APG flow.By comparison of numerical local frictional resistance coefficient and experimental results,it revealed that k-ω model has a high precision.Meanwhile,the turbulent kinetic energy is also studied,which may be helpful to study the APG flow's behavior. |
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