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Turbulent transition simulation using the k –ω model
Author(s) -
Zheng Xiaoqing,
Liu Chaoqun,
Liu Feng,
Yang ChengI
Publication year - 1998
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19980715)42:5<907::aid-nme393>3.0.co;2-t
Subject(s) - laminar flow , turbulence , reynolds number , mechanics , laminar turbulent transition , flow separation , cascade , flow (mathematics) , separation (statistics) , mathematics , physics , engineering , statistics , chemical engineering
This paper describes a novel approach in simulating laminar to turbulent transition by using two‐equation models. The Total Stresses Limitation (TSL) concept is used to make the two‐equation model capable of predicting high‐Reynolds‐number transitional flow. In order to handle the transition triggered by laminar separation at a low Reynolds number location, which commonly occurs in high speed flow, a sensor is introduced to detect separation and trigger transition in the separated zone. Test cases include the classical flat‐plate turbulent boundary flow, and low‐pressure turbine cascade flows at design and off‐design conditions. © 1998 John Wiley & Sons, Ltd.