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Calibration of a γ-Re θ transition model and its application in low-speed flows

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Abstract

The prediction of laminar-turbulent transition in boundary layer is very important for obtaining accurate aerodynamic characteristics with computational fluid dynamic (CFD) tools, because laminar-turbulent transition is directly related to complex flow phenomena in boundary layer and separated flow in space. Unfortunately, the transition effect isn’t included in today’s major CFD tools because of non-local calculations in transition modeling. In this paper, Menter’s γ-Re θ transition model is calibrated and incorporated into a Reynolds-Averaged Navier-Stokes (RANS) code — Trisonic Platform (TRIP) developed in China Aerodynamic Research and Development Center (CARDC). Based on the experimental data of flat plate from the literature, the empirical correlations involved in the transition model are modified and calibrated numerically. Numerical simulation for low-speed flow of Trapezoidal Wing (Trap Wing) is performed and compared with the corresponding experimental data. It is indicated that the γ-Re θ transition model can accurately predict the location of separation-induced transition and natural transition in the flow region with moderate pressure gradient. The transition model effectively imporves the simulation accuracy of the boundary layer and aerodynamic characteristics.

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Authors and Affiliations

  1. China Aerodynamics Research and Development Center, Mianyang, 621000, China

    YunTao Wang, YuLun Zhang, DeHong Meng, GunXue Wang & Song Li

Authors
  1. YunTao Wang
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  2. YuLun Zhang
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  3. DeHong Meng
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  4. GunXue Wang
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  5. Song Li
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Correspondence to YunTao Wang.

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Wang, Y., Zhang, Y., Meng, D. et al. Calibration of a γ-Re θ transition model and its application in low-speed flows. Sci. China Phys. Mech. Astron. 57, 2357–2360 (2014). https://doi.org/10.1007/s11433-014-5565-3

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  • DOI: https://doi.org/10.1007/s11433-014-5565-3

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