Computation of shock induced separated flow with a lagged k-ω turbulence model

Q. Xiao; H. M. Tsai; F. Liu

Computation of shock induced separated flow with a lagged k-ω turbulence model

Q. Xiao, H. M. Tsai, F. Liu

Naval Architecture, Ocean And Marine Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

6 Citations (Scopus)

Abstract

The lag model proposed by Olsen and Coakley¹ is incorporated into the baseline two-equation k-ω turbulence model to simulate the transonic and supersonic turbulent separated flow. The performances of the lagged k-ω turbulence model is assessed by computing two transonic airfoil flow cases, the RAE2822 Case 10 and the 18% thick double circular arc airfoil, and a separated nozzle flow. The computational results show that for the flow cases with strong separation, the implementation of the lag model improves the results; while for the attached flow cases, the influence of the lag model is not significant.

Original language	English
Title of host publication	33rd AIAA Fluid Dynamics Conference and Exhibit
Place of Publication	Reston, Va
Publication status	Published - 26 Jun 2003
Event	33rd AIAA Fluid Dynamics Conference and Exhibit 2003 - Orlando, FL, United States Duration: 23 Jun 2003 → 26 Jun 2003

Publication series

Name	33rd AIAA Fluid Dynamics Conference and Exhibit

Conference

Conference	33rd AIAA Fluid Dynamics Conference and Exhibit 2003
Country/Territory	United States
City	Orlando, FL
Period	23/06/03 → 26/06/03

Keywords

turbulence modelling
lag models
airfoil flow

Cite this

@inproceedings{7861437ca4cf489689b8e400edcd238a,

title = "Computation of shock induced separated flow with a lagged k-ω turbulence model",

abstract = "The lag model proposed by Olsen and Coakley1 is incorporated into the baseline two-equation k-ω turbulence model to simulate the transonic and supersonic turbulent separated flow. The performances of the lagged k-ω turbulence model is assessed by computing two transonic airfoil flow cases, the RAE2822 Case 10 and the 18% thick double circular arc airfoil, and a separated nozzle flow. The computational results show that for the flow cases with strong separation, the implementation of the lag model improves the results; while for the attached flow cases, the influence of the lag model is not significant.",

keywords = "turbulence modelling, lag models, airfoil flow",

author = "Q. Xiao and Tsai, {H. M.} and F. Liu",

year = "2003",

month = jun,

day = "26",

language = "English",

isbn = "9781624100956",

series = "33rd AIAA Fluid Dynamics Conference and Exhibit",

booktitle = "33rd AIAA Fluid Dynamics Conference and Exhibit",

note = "33rd AIAA Fluid Dynamics Conference and Exhibit 2003 ; Conference date: 23-06-2003 Through 26-06-2003",

}

TY - GEN

T1 - Computation of shock induced separated flow with a lagged k-ω turbulence model

AU - Xiao, Q.

AU - Tsai, H. M.

AU - Liu, F.

PY - 2003/6/26

Y1 - 2003/6/26

N2 - The lag model proposed by Olsen and Coakley1 is incorporated into the baseline two-equation k-ω turbulence model to simulate the transonic and supersonic turbulent separated flow. The performances of the lagged k-ω turbulence model is assessed by computing two transonic airfoil flow cases, the RAE2822 Case 10 and the 18% thick double circular arc airfoil, and a separated nozzle flow. The computational results show that for the flow cases with strong separation, the implementation of the lag model improves the results; while for the attached flow cases, the influence of the lag model is not significant.

AB - The lag model proposed by Olsen and Coakley1 is incorporated into the baseline two-equation k-ω turbulence model to simulate the transonic and supersonic turbulent separated flow. The performances of the lagged k-ω turbulence model is assessed by computing two transonic airfoil flow cases, the RAE2822 Case 10 and the 18% thick double circular arc airfoil, and a separated nozzle flow. The computational results show that for the flow cases with strong separation, the implementation of the lag model improves the results; while for the attached flow cases, the influence of the lag model is not significant.

KW - turbulence modelling

KW - lag models

KW - airfoil flow

UR - http://www.scopus.com/inward/record.url?scp=84894613105&partnerID=8YFLogxK

M3 - Conference contribution book

AN - SCOPUS:84894613105

SN - 9781624100956

T3 - 33rd AIAA Fluid Dynamics Conference and Exhibit

BT - 33rd AIAA Fluid Dynamics Conference and Exhibit

CY - Reston, Va

T2 - 33rd AIAA Fluid Dynamics Conference and Exhibit 2003

Y2 - 23 June 2003 through 26 June 2003

ER -

Computation of shock induced separated flow with a lagged k-ω turbulence model

Abstract

Publication series

Conference

Keywords

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