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User's Manual for FOMOCO Utilities-Force and Moment Computation Tools for Overset GridsIn the numerical computations of flows around complex configurations, accurate calculations of force and moment coefficients for aerodynamic surfaces are required. When overset grid methods are used, the surfaces on which force and moment coefficients are sought typically consist of a collection of overlapping surface grids. Direct integration of flow quantities on the overlapping grids would result in the overlapped regions being counted more than once. The FOMOCO Utilities is a software package for computing flow coefficients (force, moment, and mass flow rate) on a collection of overset surfaces with accurate accounting of the overlapped zones. FOMOCO Utilities can be used in stand-alone mode or in conjunction with the Chimera overset grid compressible Navier-Stokes flow solver OVERFLOW. The software package consists of two modules corresponding to a two-step procedure: (1) hybrid surface grid generation (MIXSUR module), and (2) flow quantities integration (OVERINT module). Instructions on how to use this software package are described in this user's manual. Equations used in the flow coefficients calculation are given in Appendix A.
Document ID
19960047499
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Chan, William M. (MCAT Inst. San Jose, CA United States)
Buning, Pieter G. (NASA Moffett Field, CA United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1996
Subject Category
Aerodynamics
Report/Patent Number
A-962064
NASA-TM-110408
NAS 1.15:110408
Accession Number
96N33165
Funding Number(s)
PROJECT: RTOP 505-59-53
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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