Propulsion System Flow Stability Program (Dynamic). Part VI. Inlet Turbulence Scaling.
Abstract
During the development phase of an aircraft propulsion system, the inlet-induced turbulence to which the engine will be subjected must be projected from model test data. A test program has been conducted to investigate the effects of inlet scale on turbulence and to determine methods for correcting model data to full-scale conditions. Geometrically similar 0.30- and 0.125-scale inlet/forebody models and a modification of the 0.125-scale model were tested with the objectives of separating the effects of scale, Reynolds number and length on inlet-induced turbulence. Statistical parameters, steady-state and instantaneous pressure patterns, and time histories of various pressure parameters were used in the data analysis. To provide guidance to the data analysis, a conceptual model of the turbulence generation and decay process was hypothesized. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1970
- Accession Number
- AD0866553
Entities
People
- Arnold W. Martin
- Harry E. Boyd Jr.
- Leonard C. Kostin
- Warren D. Beaulieu