nascent vortices were ranging from a fixed point of introduction to a variable separation point. In addition. flows past square-ended bluff bodies have been considered by Clements

nascent vortices were devised. ranging from a fixed point of introduction to a variable separation point. In addition. flows past square-ended bluff bodies have been considered by Clements and Maull [9]. All early discrete vortex simulations employed P.ure Lagrangian numerical schemes to advect vorticity. The mdivtdual velocities of the discrete vortices were determined by summing the velocity contributions from all the vortices in the field and combining this resultant velocity with the potential flow solution. For this reason. the technique is often described as a •direct summation• vortex method. The procedure may also be referred to as a Biot-Savart approach on account of the similarity between the magnetic field intensity created by an electric current and the velocity induced by a vortex element. The advantage of the Biot-Savart technique is that it is entirely independent of grid based numerical methods. thereby eliminating the artificial diffusion associated with Eulerian finite-difference schemes.