Suscripción a Biblioteca: Guest
Second Symposium on Turbulence and Shear Flow Phenomena
June, 27-29, 2001, KTH, Stockholm, Sweden

DOI: 10.1615/TSFP2

NUMERICAL INVESTIGATION ON FLOW CONTROL BY COMPRESSIBLE TURBULENT WALL JETS (VERIFICATION OF TURBULENCE MODELS)

pages 523-528
DOI: 10.1615/TSFP2.1620
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SINOPSIS

If separation occurs in a flow field, it causes a large pressure loss and thus aerodynamic performance is largely reduced. A wall jet, i.e. tangential blowing, is one of the control techniques for such a flow field. However, the verification of turbulence models for a wall jet in compressible flow is insufficient. In the present study, we examine the predictive performance for five typical turbulence models (Spalart-Allmaras 1 eq. model, Lam-Bremhorst, Myong-Kasagi and Shimada-Nagano k-ε 2 eq. models and Craft-Launder-Suga k-ε-A2 3 eq. model). In the results, the k-ε models show a relatively good predictive performance and little difference of distributions among the models. On the other hand, Spalart-Allmaras and Craft-Launder-Suga models indicate the inclination to overestimate the size of separation region.

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