Grid generation for general 2-D regions using hyperbolic equationsA method for applying a hyperbolic grid generation scheme to the construction of meshes in general 2-D regions has been developed. This approach, which follows the theory developed by Steger and Chaussee (1980) and the algorithm outlined by Kinsey and Barth (1984), is based on improving local grid control. This is accomplished by adding an angle control source term to the equations and using a new algorithm for computing the volume source term. These modifications lead to superior methods for fixing the 'local' problems of hyperbolic grid generation, namely, propagation of initial discontinuities and formation of grid shocks (crossing grid lines). More importantly, a method for solving the global problem of constraining the grid with more than one boundary (internal grid generation) has been developed. These algorithms have been implemented in an interactive grid generation program and the results for several geometries are presented and discussed.
Document ID
19880035159
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cordova, Jeffrey Q. (Sterling Software Palo Alto, CA, United States)
Barth, Timothy J. (NASA Ames Research Center Moffett Field, CA, United States)