A Barely Implicit Correction for FluxCorrected Transport
Abstract
The barely implicit correction (BIC) removes the stringent limit on the timestep imposed; by the sound speed in explicit methods. This is done by adding one elliptic equation which has to be solved implicitly. BIC is combined with the fluxcorrected transport algorithm in order to represent sharp gradients in subsonic flows accurately. The resultant conservative algorithm costs about the same per timestep as a single explicit timestep calculated using an optimized FCT module. Several examples show the technique's ability to solve nearly incompressible flows very economically.
 Publication:

Journal of Computational Physics
 Pub Date:
 July 1987
 DOI:
 10.1016/00219991(87)900167
 Bibcode:
 1987JCoPh..71....1P
 Keywords:

 Air Flow;
 Compressible Flow;
 Computational Fluid Dynamics;
 Ducted Flow;
 Sound Waves;
 Subsonic Flow;
 Equations Of State;
 Flow Visualization;
 Gas Dynamics;
 Microgravity Applications;
 Space Commercialization;
 Swirling;
 Two Dimensional Flow;
 Vortices;
 Fluid Mechanics and Heat Transfer