Author(s)

D. Lesnic, L. Elliott & D.B. Ingham

Abstract

Invited Paper Potential flow past a bluff body with and without separation D. Lesnic, L. Elliott, D.B. Ingham Department of Applied Mathematical Studies, of leeds, leeck 122 PJT, ABSTRACT In this study the two-dimensional steady potential flow past various shaped bodies with separation is determined and compared with the corresponding flow with no separation. The study has a concrete application in the sampling of particles on different shaped obstacles based on the principle of inertial impaction. Whether the flow separates or not will affect the characteristics of the flow in front of the obstacle and thus the collection efficiency of the sampler and its predictability. Using the method of Kirchhoff for mapping rigid boundaries, the problem reduces to a mixed boundary-value problem on the boundary of the obstacle and on the free surfaces for the logarithm of the complex velocity. By referring to the general solution of the

Keywords