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Constant-temperature anemometry measurements in hypersonic boundary layers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Spina, Eric F. |
| Copyright Year | 1991 |
| Description | One of the major unresolved issues in fluid dynamics is the nature of apparent stresses, called Reynolds stresses, which occur in turbulent boundary layers. In hypersonic boundary layers, the flow physics is further complicated by the large temperature and density fluctuations and the concomitant contamination of the Reynold stresses by fictitious terms. Because of the severe flow environment and the extraordinary demands on sensors and instruments, the turbulence characteristics of hypersonic boundary layers were studied in only a cursory fashion. The plans for supersonic (HSCT) and hypersonic (NASP) vehicles made supersonic flow physics one of the critical pacing technologies in aerospace science. In particular, experimental data are needed to verify candidate computer models and to reach an important understanding of the turbulence physics. The presented research is the start of a substantial effort to refine existing instrumentation and develop experimental techniques to measure the various component of the Reynolds stress in hypersonic boundary layers. |
| File Size | 167355 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920004643 |
| Archival Resource Key | ark:/13960/t3130sg74 |
| Language | English |
| Publisher Date | 1991-09-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Supersonic Flow Turbulence Aerospace Planes Fluid Dynamics Flow Measurement Measuring Instruments Hot-wire Flowmeters Turbulent Boundary Layer Computerized Simulation Hypersonic Vehicles Reynolds Stress Velocity Measurement Hypersonic Boundary Layer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
