A laminar kinetic energy transition model appropriate for hypersonic flow heat transfer

Y. P. Qin, C. Yan*, Z. H. Hao, L. Zhou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

A laminar kinetic energy transition model appropriate for hypersonic flow heat transfer is proposed in this paper. Based on the laminar kinetic energy transition model at low speed, three rectifications are made to make it possess the ability to predict hypersonic flow transition. Firstly, turbulence length scale is revised to consider boundary layer information directly and reflect the kinematic wall effect correctly at hypersonic speed. Secondly, large-scale eddy viscosity is reconstructed to take hypersonic unstable modes into account to describe the procedure of flow instability. Additionally, for the sake of a better results of the full-turbulence simulation and to be compatible with the revised transition model, the eddy viscosity in sheer stress transport model is adopted to substitute for small-scale eddy viscosity. The model has been applied to a number of relevant test cases, including flat plate boundary layers and boundary layer transition over a blunt cone at different Reynolds numbers. The test cases demonstrate the capacity of the model to reproduce transition flow behavior with a reasonable degree of accuracy and reflect the effect of Reynolds number successfully. While it still needs further investigation to capture the overshoot of heat transfer and take more factors showing significant influence on transition into consideration.

Original languageEnglish
Pages (from-to)1054-1064
Number of pages11
JournalInternational Journal of Heat and Mass Transfer
Volume107
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Boundary layer transition
  • Heat transfer
  • Hypersonic
  • Laminar kinetic energy

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Qin, Y. P., Yan, C., Hao, Z. H., & Zhou, L. (2017). A laminar kinetic energy transition model appropriate for hypersonic flow heat transfer. International Journal of Heat and Mass Transfer, 107, 1054-1064. https://doi.org/10.1016/j.ijheatmasstransfer.2016.11.012