An adaptive grid method for computing time accurate solutions on structured gridsThe solution method consists of three parts: a grid movement scheme; an unsteady Euler equation solver; and a temporal coupling routine that links the dynamic grid to the Euler solver. The grid movement scheme is an algebraic method containing grid controls that generate a smooth grid that resolves the severe solution gradients and the sharp transitions in the solution gradients. The temporal coupling is performed with a grid prediction correction procedure that is simple to implement and provides a grid that does not lag the solution in time. The adaptive solution method is tested by computing the unsteady inviscid solutions for a one dimensional shock tube and a two dimensional shock vortex iteraction.
Document ID
19910034533
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bockelie, Michael J. (NASA Langley Research Center Hampton, VA, United States)
Smith, Robert E. (NASA Langley Research Center Hampton, VA, United States)
Eiseman, Peter R. (Columbia University New York, United States)