Project Title:

A Design Method for the Calculation of Supersonic and Hypersonic Flow Fields

03.07-2900
912434
A Design Method for the Calculation of Supersonic and Hypersonic Flow Fields
Adroit Systems, Inc.
209 Madison Street
Alexandria
VA
22314
Thomas R.A.
Bussing
703-684-2900
LaRC
NAS1-19513
037

03.07-2900
912434

Abstract:

A Design Method for the Calculation of Supersonic and Hypersonic Flow Fields
The specific innovation in this project results from a desire to increase speed and
reduce computer memory requirements for the computation of internal and external
hypersonic flows. The approach is to reduce problems involving three-dimensional,
embedded elliptic flow regions that require the full Navier-Stokes (FNS) equations
to problems for which only the parabolized Navier-Stokes (PNS) equations, coupled
with innovative fluid and chemistry models, are required. The innovation involves
building analytical models for various embedded elliptic fluid flows, i.e., transverse
fuel injection, parallel fuel injection, base flows, and so on, for which the extent
of the embedded elliptic flow is small compared to overall flow field. Current FNS
methods require one or two orders of magnitude more CPU time and computer memory
as compared to PNS methods. In addition, an evaluation of the optimization techniques
that could be coupled with these PNS methods will be performed. These new, efficient
codes could be run on super workstations to enhance their availability to the design
community. This innovation will lead to a new, highly efficient class of design methods
applicable to a wide variety of hypersonic problems.
The new design method could be applied in the areas of missile design, supersonic
aerodynamics analysis, hypersonic vehicle design, and scramjet development.
parabolized Navier-Stokes (PNS), fuel injector, hypersonic, design methods, elliptic
flow, computational fluid dynamics (CFD), fluid model, supersonic