Author(s): M. R. Kavianpour
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Keywords: No Keywords
Abstract: The purpose of this study is to apply the discrete vortex model to determine pressure fields in the reattaching zone of the flow past a normal plate situated in a duct. The plate is of negligible thickness which is aligned normal to a uniform approaching stream. The plate spanned the entire width of the duct. In this model, the motion of the free shear layer is represented by elemental vortices. The complex potential is derived through a Schwartz-Christoffel transformation of the physical plane. In addition to considering the combination and the cancellation of vortices, the circulation of them was also allowed to decay with time in order to take partial account of the real fluid behaviour. A large number of computations have been performed until the fluctuation of velocities appeared to be statistically stationary. These calculations yield predictions of the time-mean and r. m. s. values of the velocity and pressure fluctuations in the separation zone which, have been compared with the experimental results.
Year: 1995