3D Visualization of the separated fluid flows

被引：0

作者：

V. A. Gushchin

A. V. Kostomarov

P. V. Matyushin

机构：

[1] Institute for Computer Aided Design Russian Academy of Sciences (ICAD RAS),

来源：

Journal of Visualization | 2004年 / 7卷

关键词：

3D Visualization; Sphere; Cylinder; Wake; Vortex structures;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

For the detailed investigation of the 3D unsteady incompressible viscous separated fluid flows around a sphere (for 200≤Re≤700) and a circular cylinder (for 200≤Re≤400) the direct numerical simulation and 3D visualization are used. For 3D visualization of the fluid flows around a sphere the definition of vortex core as a connected region containing two negative eigenvalues of theS2+Ω2 tensor is used (whereSi,j andΩij are the rate of strain and the rate of rotation tensors). The formation mechanism of vortices in the sphere wake for Re=500 is described in detail. For 3D visualization of the fluid flows around a circular cylinder the 3D isosurfaces of the streamwise component of vorticity ωx are used.

引用

页码：143 / 150

页数：7

共 28 条

[1]

Braza M.(1999)The 3D Transition to Turbulence in Wake Flows by Means of Direct Numerical Simulation J. Flow Turbulence and Combustion 63 315-341

[2]

Gushchin V. A.(1992)Computational Aspects of the Splitting Method for Incompressible Flow with a Free Surface Journal of Computers and Fluids 21-3 345-353

[3]

Konshin V. N.(2001)Direct Numerical Simulation of the Transitional Separated Fluid Flows around a Sphere Japan Society of CFD/CFD Journal 10-3 44-349

[4]

Gushchin V. A.(2002)Direct Numerical Simulation of the Transitional Separated Fluid Flows Around a Sphere and a Circular Cylinder Journal of Wind Engineering & Industrial Aerodynamics 90/4-5 341-358

[5]

Kostomarov A. V.(1997)Numerical Simulation of Separated Flow Past a Sphere Computational Mathematics and Mathematical Physics 37-9 1086-1100

[6]

Matyushin P. V.(1995) On the Identification of a Vortex J. Fluid Mech. 285 69-94

[7]

Pavlyukova E. R.(1999)Flow Past a Sphere up to a Reynolds Number of 300 J. Fluid Mech. 378 19-70

[8]

Gushchin V. A.(1995)On the Transition of the Cylinder Wake J. Phys. Fluids 7-4 779-794

[9]

Kostomarov A. V.(1961)Transition Ranges for Three-dimensional Wakes Can. J. Phys. 39 1418-1422

[10]

Matyushin P. V.(1982)Topology of Three-dimensional Separated Flows Ann. Rev. Fluid Mech. 14 61-85

← 1 2 3 →