TY - GEN
T1 - The research of cross-flow instabilities transition prediction method based on spalart-allmaras-gamma-theta transition model
AU - Xu, Jiakuan
AU - Bai, Junqiang
AU - Fu, Ziyuan
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/2
Y1 - 2017/5/2
N2 - The prediction of cross-flow instabilities transition phenomenon is difficult to be combined with modern CFD parallel computation. To solve this problem, on the basis of SA-γ-Reθt transition model, a new transition model is presented here, which solves cross-flow displacement thickness Reynolds number locally using three-dimentional boundary layer similar solution and also sets cross-flow instabilities transition criterion referring to C1-criterion. Thereby, it can solve the cross-flow instabilities transition prediction method locally and parallelly. Then, adopting the present SA-γ-Reθt - CF transition model, numerical simulations of cross-flow instabilities transition are conducted for both infinite swept NLF(2)-0415 wing and standard 6%1 prolate spheroid. And calculating transition locations are in good agreement with experimental data, which demonstrates the rationality of the model presented.
AB - The prediction of cross-flow instabilities transition phenomenon is difficult to be combined with modern CFD parallel computation. To solve this problem, on the basis of SA-γ-Reθt transition model, a new transition model is presented here, which solves cross-flow displacement thickness Reynolds number locally using three-dimentional boundary layer similar solution and also sets cross-flow instabilities transition criterion referring to C1-criterion. Thereby, it can solve the cross-flow instabilities transition prediction method locally and parallelly. Then, adopting the present SA-γ-Reθt - CF transition model, numerical simulations of cross-flow instabilities transition are conducted for both infinite swept NLF(2)-0415 wing and standard 6%1 prolate spheroid. And calculating transition locations are in good agreement with experimental data, which demonstrates the rationality of the model presented.
KW - Boundary layer similar solution
KW - Boundary layer transition
KW - C1-criterion
KW - Cross-flow instabilities transition
KW - Transition model
KW - Turbulence model
UR - http://www.scopus.com/inward/record.url?scp=85019967932&partnerID=8YFLogxK
U2 - 10.1109/ICMIMT.2017.7917450
DO - 10.1109/ICMIMT.2017.7917450
M3 - 会议稿件
AN - SCOPUS:85019967932
T3 - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
SP - 130
EP - 133
BT - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
Y2 - 3 February 2017 through 6 February 2017
ER -