Optimization of Swirl Brakes by Means of a 3D Navier-Stokes Solver

K. Krogh Nielsen, R. A. Van den Braembussche, C. M. Myllerup
1998 Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration   unpublished
This paper deals with the modeling of the flow in the leakage cavity between shroud and stator of a radial pump and the design of optimized swirl brakes at the inlet of the seal. As pressure losses were of no importance in this application, the only criterion for optimization was to minimize the swirl at the seal inlet in order to enhance the rotordynamic stability of it. The design investigation was performed by means of a 3D Navier-Stokes solver. A variety of vane designs were analyzed. It
more » ... ere analyzed. It was shown that the three-dimensional vortical structure of the flows plays a dominant role and can be efficiently used to reduce or even invert the swirl at the seal inlet.
doi:10.1115/98-gt-328 fatcat:z4i3lincuncdhfzasmvagjmntu