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Time-dependent quasi-one-dimensional simulations of high enthalpy pulse facilitiesA numerical methodology is presented for simulating the time-dependent reacting flow inside the entire length of high enthalpy pulse facilities. The methodology is based on a finite-volume TVD scheme for the quasi-1D Euler equations coupled with finite-rate chemistry. A moving mesh and tracking of gas interfaces are used to overcome certain numerical difficulties associated with these types of flows. Simulation results of a helium driven shock tube show that computations can be used to predict the off-tailored behavior of shock tubes and tunnels. Particular attention is given to computations of the flow through the NASA Ames 16-inch combustion driven shock tunnel which show the influence of nonuniformities in the driver section on the reservoir conditions; and the effect of finite secondary diaphragm opening times on the chemical composition of the test flow in the HYPULSE expansion tube.
Document ID
19930038369
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wilson, Gregory J.
(Eloret Inst. Palo Alto, CA, United States)
Date Acquired
August 16, 2013
Publication Date
December 1, 1992
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 92-5096
Meeting Information
Meeting: AIAA, International Aerospace Planes Conference
Location: Orlando, FL
Country: United States
Start Date: December 1, 1992
End Date: December 4, 1992
Sponsors: AIAA
Accession Number
93A22366
Funding Number(s)
CONTRACT_GRANT: NCC2-420
Distribution Limits
Public
Copyright
Other

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