Improvement of a low-Reynolds-number second moment closure and its application to rotating turbulent channel flows

Jong Keun Shin; Young Don Choi

doi:10.1299/jsmeb.44.63

Improvement of a low-Reynolds-number second moment closure and its application to rotating turbulent channel flows

Jong Keun Shin, Young Don Choi

Honorary professors

Research output: Contribution to journal › Article

Abstract

A low-Reynolds-number second moment closure is improved with the aid of DNS data and applied to turbulent channel flows with a spanwise rotation. Shima's pressure strain model is refined and a multiple source model is introduced for the exact ε equation. Computational results for the turbulent plane channel flows rotating in orthogonal mode are compared with the DNS, LES and experimental data. The present second moment closure achieves a level of agreement with DNS data similar to those for the non-rotating flow cases. In particular, it yields the improved performance in predicting the distributions of ε in the near wall sublayer.

Original language	English
Pages (from-to)	63-71
Number of pages	9
Journal	JSME International Journal, Series B: Fluids and Thermal Engineering
Volume	44
Issue number	1
DOIs	https://doi.org/10.1299/jsmeb.44.63
Publication status	Published - 2001 Feb

Keywords

Coriolis force
Rotating flow
Rotation number
Second moment turbulence closure

ASJC Scopus subject areas

Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

Access to Document

10.1299/jsmeb.44.63

Fingerprint Dive into the research topics of 'Improvement of a low-Reynolds-number second moment closure and its application to rotating turbulent channel flows'. Together they form a unique fingerprint.

Cite this

@article{5780bc14c2fb4507b576a7025737c9cf,

title = "Improvement of a low-Reynolds-number second moment closure and its application to rotating turbulent channel flows",

abstract = "A low-Reynolds-number second moment closure is improved with the aid of DNS data and applied to turbulent channel flows with a spanwise rotation. Shima's pressure strain model is refined and a multiple source model is introduced for the exact ε equation. Computational results for the turbulent plane channel flows rotating in orthogonal mode are compared with the DNS, LES and experimental data. The present second moment closure achieves a level of agreement with DNS data similar to those for the non-rotating flow cases. In particular, it yields the improved performance in predicting the distributions of ε in the near wall sublayer.",

keywords = "Coriolis force, Rotating flow, Rotation number, Second moment turbulence closure",

author = "Shin, {Jong Keun} and Choi, {Young Don}",

year = "2001",

month = feb,

doi = "10.1299/jsmeb.44.63",

language = "English",

volume = "44",

pages = "63--71",

journal = "JSME International Journal, Series B: Fluids and Thermal Engineering",

issn = "1340-8054",

publisher = "Japan Society of Mechanical Engineers",

number = "1",

}

TY - JOUR

T1 - Improvement of a low-Reynolds-number second moment closure and its application to rotating turbulent channel flows

AU - Shin, Jong Keun

AU - Choi, Young Don

PY - 2001/2

Y1 - 2001/2

N2 - A low-Reynolds-number second moment closure is improved with the aid of DNS data and applied to turbulent channel flows with a spanwise rotation. Shima's pressure strain model is refined and a multiple source model is introduced for the exact ε equation. Computational results for the turbulent plane channel flows rotating in orthogonal mode are compared with the DNS, LES and experimental data. The present second moment closure achieves a level of agreement with DNS data similar to those for the non-rotating flow cases. In particular, it yields the improved performance in predicting the distributions of ε in the near wall sublayer.

AB - A low-Reynolds-number second moment closure is improved with the aid of DNS data and applied to turbulent channel flows with a spanwise rotation. Shima's pressure strain model is refined and a multiple source model is introduced for the exact ε equation. Computational results for the turbulent plane channel flows rotating in orthogonal mode are compared with the DNS, LES and experimental data. The present second moment closure achieves a level of agreement with DNS data similar to those for the non-rotating flow cases. In particular, it yields the improved performance in predicting the distributions of ε in the near wall sublayer.

KW - Coriolis force

KW - Rotating flow

KW - Rotation number

KW - Second moment turbulence closure

UR - http://www.scopus.com/inward/record.url?scp=0035242877&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035242877&partnerID=8YFLogxK

U2 - 10.1299/jsmeb.44.63

DO - 10.1299/jsmeb.44.63

M3 - Article

AN - SCOPUS:0035242877

VL - 44

SP - 63

EP - 71

JO - JSME International Journal, Series B: Fluids and Thermal Engineering

JF - JSME International Journal, Series B: Fluids and Thermal Engineering

SN - 1340-8054

IS - 1

ER -