Modelling high Re flow around a 2D cylindrical bluff body using the k-ω (SST) turbulence model

被引：30

作者：

Pang, Andrew Li Jian ^{[1
,2
]}

Skote, Martin ^{[2
]}

Lim, Siow Yong ^{[3
]}

机构：

[1] Nanyang Technol Univ, Interdisciplinary Grad Sch, ERI N, 50 Nanyang Ave, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore

[3] Nanyang Technol Univ, Sch Civil & Environm Engn, 50 Nanyang Ave, Singapore 639798, Singapore

来源：

PROGRESS IN COMPUTATIONAL FLUID DYNAMICS | 2016年 / 16卷 / 01期

关键词：

turbulence; Reynolds-averaged Navier-Stokes; RANS; two-equation model; k-omega model; k-epsilon model; flow around cylinder; high Reynolds number flow; surface roughness; curvature correction; FLUENT; HIGH REYNOLDS-NUMBERS; CIRCULAR-CYLINDER; CROSS-FLOW; NUMERICAL-SIMULATION;

D O I：

10.1504/PCFD.2016.074225

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this work, we analyse the ability for the k-omega (SST) model to accurately predict a high Reynolds number, Re, flow around a cylindrical bluff body, relative to other two-equation RANS models. We investigate the sensitivity of incorporating a curvature correction modification in the k-omega (SST) model to improve the limitation of the eddy-viscosity-based models of capturing system rotation and streamline curvature for a flow around a cylinder. Finally, the ability for this turbulence model to capture the surface roughness of the cylinder is evaluated. Based on this work, we conclude that the k-omega (SST) model is superior to other two-equation RANS models and is able to capture the effects of surface roughness. The curvature correction modification to the k-omega (SST) model further improves this model.

引用

页码：48 / 57

页数：10

共 24 条

[1] DISTRIBUTION OF LOCAL PRESSURE AND SKIN FRICTION AROUND A CIRCULAR CYLINDER IN CROSS-FLOW UP TO RE=5X106 [J].