Direct simulation of flow field around SUBOFF in grid-generated turbulence with SWLBM

被引：4

作者：

Xuesen, Chu ^{[1
,2
,3
]}

Yaoyao, Liu ^{[4
]}

Zhenxun, Dong ^{[4
]}

Chong, Pan ^{[4
]}

Yuehong, Qian ^{[5
]}

Kai, Yan ^{[2
,3
]}

Guangwen, Yang ^{[1
,6
]}

机构：

[1] Tsinghua Univ, Beijing 100084, Peoples R China

[2] China Ship Sci Res Ctr, Wuxi 214082, Peoples R China

[3] Taihu Lake Lab Deep Sea Technol & Sci, Wuxi 214082, Peoples R China

[4] Beijing Univ Aeronaut & Astronaut, Beijing 100084, Peoples R China

[5] Soochow Univ, Suzhou 215006, Peoples R China

[6] Natl Supercomp Ctr Wuxi, Wuxi 214072, Peoples R China

来源：

COMPUTERS & FLUIDS | 2023年 / 265卷

基金：

中国国家自然科学基金;

关键词：

Lattice Boltzmann method; DARPA SUBOFF; Grid turbulence; Computational fluid dynamic; Sunway TaihuLight supercomputer; AXISYMMETRICAL BODY; WAKE; SUBMARINE;

D O I：

10.1016/j.compfluid.2023.106019

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

SWLBM is a Lattice Boltzmann Method (LBM) based software designed running on Sunway TaihuLight Supercomputer. In this paper, we introduce the simulation of flow over DARPA SUBOFF model in grid-generated turbulence with SWLBM. The simulation setting follows the Particle Image Velocimetry (PIV) measurement experiment done in the water tunnel of Beijing University of Aeronautics and Astronautics (BUAA) with a low speed of 0.25 m/s. The turbulent flow generated from a grid formed by 36 mm square mesh interlocking with 6 mm square bars was simulated directly, and the evolution of turbulence transition over the forebody surface of a scaled-down SUBOFF model with diameter of 200 mm was captured. The simulation results including velocity field and statistical variables were compared relatively well with experimental data. The simulation case has lattice size of 7.8billions and could finish 200,000 iterations within 24 h running on 2000 core groups of Sunway Taihulight supercomputer. This shows SWLBM is efficient tool for high resolution simulation for turbulent study.

引用

页数：10

共 34 条

[21] [吕小敬 Lv Xiaojing], 2020, [计算机科学, Computer Science], V47, P13
[22] USE OF THE BOLTZMANN-EQUATION TO SIMULATE LATTICE-GAS AUTOMATA
MCNAMARA, GR
ZANETTI, G
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (20) : 2332 - 2335
[23] Large-eddy simulation and streamline coordinate analysis of flow over an axisymmetric hull
Morse, Nicholas
Mahesh, Krishnan
[J]. JOURNAL OF FLUID MECHANICS, 2021, 926 (926)
[24] Evaluating the accuracy performance of Lucas-Kanade algorithm in the circumstance of PIV application
Pan Chong
Xue Dong
Xu Yang
Wang JinJun
Wei RunJie
[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2015, 58 (10)
[25] A numerical investigation of the wake of an axisymmetric body with appendages
Posa, A.
Balaras, E.
[J]. JOURNAL OF FLUID MECHANICS, 2016, 792 : 470 - 498
[26] A numerical investigation about the effects of Reynolds number on the flow around an appended axisymmetric body of revolution
Posa, Antonio
Balaras, Elias
[J]. JOURNAL OF FLUID MECHANICS, 2020, 884
[27] Large-Eddy Simulations of a notional submarine in towed and self-propelled configurations
Posa, Antonio
Balaras, Elias
[J]. COMPUTERS & FLUIDS, 2018, 165 : 116 - 126
[28] Praveen K, 2018, ANAL AXISYMMETRIC BO, P927
[29] LATTICE BGK MODELS FOR NAVIER-STOKES EQUATION
QIAN, YH
DHUMIERES, D
LALLEMAND, P
[J]. EUROPHYSICS LETTERS, 1992, 17 (6BIS): : 479 - 484
[30] Renilson M., 2018, Submarine Hydrodynamics, V2nd ed.

← 1 2 3 4 →