Psuedo-Shock as a Qualitative Model in the Investigation of the Influence of Wall Roughness on the Performance of Supersonic MHD Generators.
Abstract
A preliminary study, based on an extension of Crocco's pseudo-shock model, has been carried out to explain and predict qualitatively the rather gradual pressure rise in a supersonic MHD generator, to account for the influence of wall roughness on the core flow. A system of non-linear ordinary differential equations is formulated for the wall layer and core, with proper electromagnetic conditions enforced at the interface. Extensive numerical experiments are also presented, which demonstrate indeed the qualitative link between the theory of MHD pseudo-shock and the observed pressure ramp caused by rough walls. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1980
- Accession Number
- ADA088333
Entities
People
- Pau-chang Lu
Organizations
- University of Nebraska-Lincoln Department of Mechanical and Materials Engineering