An immersed boundary method for nonuniform grids

被引：12

作者：

Jang, Juwon ^{[1
]}

Lee, Changhoon ^{[1
,2
]}

机构：

[1] Yonsei Univ, Dept Mech Engn, 50 Yonsei Ro, Seoul, South Korea

[2] Yonsei Univ, Dept Computat Sci & Engn, 50 Yonsei Ro, Seoul, South Korea

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2017年 / 341卷

基金：

新加坡国家研究基金会;

关键词：

immersed boundary method; Nonuniform grid; Reproducing polynomial particle method; Arbitrarily shaped particle; SIMULATION; SPHERE;

D O I：

10.1016/j.jcp.2017.04.014

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We propose a new direct forcing immersed boundary method for simulating the flow around an arbitrarily shaped body in nonuniform grids. A new formulation of the weight function for the distribution of the immersed boundary forcing with an efficient strategy that distributes the Lagrangian points on the surface of the immersed body is developed. We validate our method for various flows induced by a translational or angular motion of a sphere by measuring the lift, drag, and moment coefficients. For an arbitrary shape particle, we test our method for flow around an ellipsoid in the uniform flow. All tests show good agreement with available references. Finally, we investigate the interaction between a tilted ellipsoid and the wall in the uniform flow and the Poiseuille flow. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：1 / 12

页数：12

共 15 条

[1] Immersed boundary method with non-uniform distribution of Lagrangian markers for a non-uniform Eulerian mesh [J].

Akiki, G. ;

Balachandar, S. .

JOURNAL OF COMPUTATIONAL PHYSICS, 2016, 307 :34-59

[2] Effect of free rotation on the motion of a solid sphere in linear shear flow at moderate Re [J].

Bagchi, P ;

Balachandar, S .

PHYSICS OF FLUIDS, 2002, 14 (08) :2719-2737

[3] Lattice Boltzmann simulations to determine drag, lift and torque acting on non-spherical particles [J].

Hoelzer, Andreas ;

Sornmerfeld, Martin .

COMPUTERS & FLUIDS, 2009, 38 (03) :572-589

[4] An improved immersed boundary method with direct forcing for the simulation of particle laden flows [J].

Kempe, Tobias ;

Froehlich, Jochen .

JOURNAL OF COMPUTATIONAL PHYSICS, 2012, 231 (09) :3663-3684

[5] Modulation of isotropic turbulence by particles of Taylor length-scale size [J].

Lucci, Francesco ;

Ferrante, Antonino ;

Elghobashi, Said .

JOURNAL OF FLUID MECHANICS, 2010, 650 :5-55

[6] Immersed boundary methods [J].

Mittal, R ;

Iaccarino, G .

ANNUAL REVIEW OF FLUID MECHANICS, 2005, 37 :239-261

[7] Velocity measurement of a settling sphere [J].

Mordant, N ;

Pinton, JF .

EUROPEAN PHYSICAL JOURNAL B, 2000, 18 (02) :343-352

[8]

Oh H.S., 2007, COMPUT METHODS APPL, V15, P35

[9]

Peskin CS, 2002, ACT NUMERIC, V11, P479, DOI 10.1017/S0962492902000077

[10] Immersed-boundary methods for general finite-difference and finite-volume Navier-Stokes solvers [J].

Pinelli, A. ;

Naqavi, I. Z. ;

Piomelli, U. ;

Favier, J. .

JOURNAL OF COMPUTATIONAL PHYSICS, 2010, 229 (24) :9073-9091

← 1 2 →