Kinetic theory model for the flow of a simple gas from a three-dimensional axisymmetric nozzleA system of nonlinear integral equations equivalent to the Krook kinetic equations for the steady state is the mathematical basis used to develop a computer code to model the flowfields for low-thrust three-dimensional axisymmetric nozzles. The method of characteristics is used to solve numerically by an iteration process the approximated Boltzmann equation for the number density, temperature, and velocity profiles of a simple gas as it expands into a vacuum. Results predict backscatter and show the effect of the nozzle wall boundary layer on the external flowfields.
Document ID
19920070106
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Riley, B. R. (Evansville, University IN, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Aerodynamics
Meeting Information
Meeting: International Symposium on Rarefied Gas Dynamics