Elliptic generation of composite three-dimensional grids about realistic aircraftAn elliptic method for generating composite grids about realistic aircraft is presented. A body-conforming grid is first generated about the entire aircraft by the solution of Poisson's differential equation. This grid has relatively coarse spacing, and it covers the entire physical domain. At boundary surfaces, cell size is controlled and cell skewness is nearly eliminated by inhomogeneous terms, which are found automatically by the program. Certain regions of the grid in which high gradients are expected, and which map into rectangular solids in the computational domain, are then designated for zonal refinement. Spacing in the zonal grids is reduced by adding points with a simple, algebraic scheme. Details of the grid-generation method are presented along with results of the present application, a wing/body configuration based on the F-16 fighter aircraft.
Document ID
19880039522
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sorenson, Reese L. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Aircraft Design, Testing And Performance
Meeting Information
Meeting: Numerical grid generation in computational fluid dynamics