NUMERICAL INVESTIGATION OF THE FORMATION OF DISCONTINUITIES IN NONISENTROPIC INVISCID FLOWS.
Abstract
The possibility of the occurrence of discontinuities in inviscid flows governed by the Euler Equations is a well-recognized phenomenon. It has been established mathematically that discontinuities must appear in some circumstances; a planar piston accelerating into a stationary isentropic fluid must produce a 'shock' discontinuity. Artificial viscosity techniques have been developed in order to overcome the difficulties associated with mathematical discontinuities. The report considers two questions: (1) Is it possible to utilize a numerical scheme for the inviscid equations, for both isentropic and nonisentropic flow, such that the stability of the method does not depend on an artificial viscosity effect. (2) Is it possible to have continuous nonisentropic, inviscid flows in which there are subsonic and supersonic regions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1969
- Accession Number
- AD0685616
Entities
People
- Paul Gordon
- Sinclaire M. Scala
Organizations
- General Electric