Assessment and Extension of the WrayAgarwal Turbulence Model for Shock WaveBoundary Layer Interactions

Akça S. C., Dikbaş E., BARAN Ö. U.

AIAA Aviation Forum and ASCEND, 2024, Nevada, Amerika Birleşik Devletleri, 29 Temmuz - 02 Ağustos 2024 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.2514/6.2024-4088
  • Basıldığı Şehir: Nevada
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, the performance of the Wray-Agarwal one-equation turbulence model is evaluated using Shock Wave-Boundary Layer Interaction (SWBLI) test cases. Also, a recently tested formulation by Raje and Sinha aiming for enhancement in SWBLI flow predictions for the k-ω SST model is applied to the Wray-Agarwal turbulence model as an extension. By introducing Reynolds stress anisotropy to the turbulent boundary layer, an updated version of the Wray-Agarwal model is proposed. The modified version of the model is tested using supersonic and hypersonic compression ramps and impinging shock-type flow problems. It is shown that the current extended version of the model predicts the shock-induced separation locations more accurately than the standard Wray-Agarwal model for compression ramptype flow problems. The modifications have no significant effect on the predictions of impinging shock-type problems.