Software User's Manual for Stability and Transition Analysis with the Codes LSH and PSH

Abstract

This manual describes how to use the local linear stability code LSH and the nonlinear Parabolized Stability Equations (PSE) solver PSH for compressible flows. Both codes are adaptable to analysis of different flows over fairly general shapes of bodies. For analysis of a new problem, the user may specify the basic state, the coordinate system, dependent disturbance variables and their boundary conditions to be used for the stability analysis through physics insert files. Once these preliminary steps are completed, different tasks of stability analysis and PSE calculations can be carried out by simple modifications of a few input files. Both codes are highly modular and closely integrated. Output data from LSH can be used directly as initial data for PSH runs. Examples of several insert files and input files of the built-in problems are given to assist the user in setting up a new problem. Linear stability equations, General bodies parabolized stability equations, Compressible flows.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1993
Accession Number
ADA277593

Entities

People

  • G. K. Stuckert
  • N. Lin
  • T. Herbert

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Boundary Layer Control
  • Cartesian Coordinates
  • Compressible Flow
  • Constitutive Equations
  • Coordinate Systems
  • Differential Equations
  • Eigenvalues
  • Equations
  • Equations Of State
  • Flow
  • Fluid Dynamics
  • Ideal Gas Law
  • Inertial Navigation Systems
  • Thermal Conductivity
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Control Systems Engineering.