numerical analysis of the high speed driven cavity flow in 2-d curved channel

Numerical experiments were carried out on the high speed driven cavity flows in 2d curved channelsto investigate mainly the pressure field. a density-based algorithm in ansys fluent 13.0 was usedin the present urans simulations. the sst k-w model was used for modeling the turbulence withinan unstructured mesh solver. validation of the numerical code was accomplished, and the resultsshowed a good agreement between the numerical simulation and experimental data. three channels(straight, concave and convex) with a nominal height of h = 4 ×10^-3 m under the transonic flowconditions were considered in the study. the cavity studied is l = 12×10^-3 m long with the depthranging from d = 12×10^-3 m to 48×10^-3 m to obtain the length-to-depth ratios of l=d=1 to 1=4.the study comprised the analysis of the cavity surface pressures and the associated flow structures.the channel configuration influenced the cavity flowfield, and that influence finally resulted in achange in the surface pressure fluctuations in the cavity. the deep cavity attenuated the flowfieldoscillation inside the cavity.