Accession Number:
AD0601319
Title:
IMPROVED HYPERSONIC LAMINAR WAKE CALCULATIONS INCLUDING RATE CHEMISTRY
Descriptive Note:
Technical rept.
Corporate Author:
GENERAL APPLIED SCIENCE LABS INC WESTBURY NY
Personal Author(s):
Report Date:
1961-08-25
Pagination or Media Count:
35.0
Abstract:
This report was concerned with the prediction of the properties of a laminar, axisymmetric, hypersonic wake which may not be in thermodynamic equilibrium. The flow was treated as a continuum, by a boundary layer approximation, utilizing integral method techniques. The analysis included a An improved rate chemistry and representative thermodynamics. The air chemistry included rate processes which involve seven species, i.e., O2, O, N2, N, NO, NO ion and electron. b An additional parameter was introduced H sub n n sub o which couples the energy integral equation and boundary condition. This permits a simple evaluation of the effect of an initial defect in the stagnation enthalpy andor Prandtl - Lewis numbers different from unity on the flow field. c The system of equations was programmed on the IBM 7090 digital computer. This enables such advantages as automatic interval change, utilization of a Runge-Kutta scheme in the forward integration, test for maximum truncation error, evaluation of the temperature which is given in terms of a transcendental algebraic expression to any desirable accuracy and calculation of profiles in the physical plane at any predetermined axial stations.
Descriptors:
Subject Categories:
- Physical Chemistry
- Fluid Mechanics