Experimental Investigation of Moving Pressure Disturbances and Shock Waves and Correlation With One-Dimensional Unsteady-Flow Theory
Abstract
Experimental pressure-time measurements, along with schlieren photographs of the unsteady-flow phenomena initiated in constant-cross- sectional-area passages, are presented. The methods of calculation of the flow phenomena are based on the assumptions of one-dimensional, nonviscous, unsteady flow. The unsteady flow - which is studied both experimentally and theoretically - includes propagation of pressure disturbances, which may be either expansion zones or discontinous compression fronts, temperature contact discontinuities in the flow, and the reflections and interactions of these flow quantities. A very close agreement is shown between the experimental measurements of the flow and the flow predicted by the theory over a wide range of flow conditions. Special instrumentation was developed during these tests which greatly facilitated the measurement of the unsteady flow phenomena.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1949
- Accession Number
- ADA380464
Entities
People
- Cliff E. Fitton Jr
- F. Delpino
- Paul W. Huber
Organizations
- National Aeronautics and Space Administration