Boundary Element Method for Internal Axisymmetric Flow

ALEXANDER GOKHMAN ； DMITRY GOKHMAN

《Mathematical Problems in Engineering》 1999卷 (1999/12) Pp. 55-81

https://doi.org/10.1155/S1024123X9900099X

摘要

We present an accurate fast method for the computation of potential internal axisym-metric flow based on the boundary element technique. We prove that the computed velocity field asymptotically satisfies reasonable boundary conditions at infinity for various types of inlet/exit. Computation of internal axisymmetric potential flow is an essential ingredient in the three-dimensional problem of computation of velocity fields in turbomachines. We include the results of a practical application of the method to the computation of flow in turbomachines of Kaplan and Francis types.

關鍵字

Boundary element method ； Vortex layer ； Potential axisymmetric flow ； Hydraulic turbine