A procedure for the calculation of gapcorner flows
Abstract
The flow behavior in the area of the floor of high speed ground transportation vehicles was calculated. For this calculation a simplified gapcornerconfiguration formed by a Uformed finite sledge, which runs over an upright standing rail was introduced. The reduced system of differential equations, which describes the threedimensional, laminar, compressible flow, led to an initialboundaryvalue problem. To solve the system of equations an implicit finite difference scheme of alternating directions was developed. Because of the high gradients of the flow quantities in the corner areas the method of alternating directions was iterated additionally in each computational plane. The method of solution can be applied for high and for low Reynolds numbers.
 Publication:

Contributions on Transport Phenomena in Fluid Mechanics and Related Topics
 Pub Date:
 April 1977
 Bibcode:
 1977tubc.rept...99G
 Keywords:

 Corner Flow;
 Flow Equations;
 Gaps;
 Rail Transportation;
 Surface Vehicles;
 Boundary Value Problems;
 Compressible Flow;
 Differential Equations;
 Finite Difference Theory;
 High Speed;
 Laminar Flow;
 Three Dimensional Flow;
 Fluid Mechanics and Heat Transfer