Similarity-solution-based improvement of γ-Re model for hypersonic transition prediction

Numerical investigations on transitional flows around forward and reversed hydrofoils

“…The Spalart-Allmaras (SA) transition model is the other one developed based on the similar concept of the SST γ-𝑅𝑒 ̃𝜃𝑡 model, which has already achieved a good reputation in simulating the aerodynamic transitional flows [20][21]. Other improved transition models and the transition modeling strategies can refer to some related references [22][23][24][25]. Moreover, large eddy simulation which consists of modelling the more universal small-scales while the motions of large scales are computed explicitly is a promising tool but remains extremely costly in computer resources for the configuration with large dimension or at high Reynolds number.…”

Construction and Application of Transition Prediction Databased Method for 2nd Mode on Sharp Cone

“…This latter solution, originally designed by Menter and Langtry for turbomachine applications at low speed, uses local variables and transport equation for both intermittency and transition onset criteria, in order to evaluate a transition criteria from Re θ , but includes no relevant physical phenomena. It has been extended to supersonic flows for scramjets by Frauholz et al [11] and later to hypersonic flows by Wang et al [12] using compressible similarity solutions.…”

Comparative Assessment of Modified γ - Re θ t

“…To overcome these limitations, research pertinent to the development and improvement of new and transition models [41][42][43] has attracted increased attention. The existing efforts to improve the model include the modification of the correlations of the γ-Re θt model [44][45][46] or both the equations and the correlations [47][48][49]. Moreover, the abovementioned studies focused on models pertaining to the transition of the attached boundary layer with no consideration of transitions occurring in separated flows.…”