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Prediction and measurement of heat transfer rates for the shock-induced unsteady laminar boundary layer on a flat plate
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cook, W. J. |
| Copyright Year | 1972 |
| Description | The unsteady laminar boundary layer induced by the flow-initiating shock wave passing over a flat plate mounted in a shock tube was theoretically and experimentally studied in terms of heat transfer rates to the plate for shock speeds ranging from 1.695 to 7.34 km/sec. The theory presented by Cook and Chapman for the shock-induced unsteady boundary layer on a plate is reviewed with emphasis on unsteady heat transfer. A method of measuring time-dependent heat-transfer rates using thin-film heat-flux gages and an associated data reduction technique are outlined in detail. Particular consideration is given to heat-flux measurement in short-duration ionized shocktube flows. Experimental unsteady plate heat transfer rates obtained in both air and nitrogen using thin-film heat-flux gages generally agree well with theoretical predictions. The experimental results indicate that the theory continues to predict the unsteady boundary layer behavior after the shock wave leaves the trailing edge of the plate even though the theory is strictly applicable only for the time interval in which the shock remains on the plate. |
| File Size | 2381678 |
| Page Count | 111 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730022509 |
| Archival Resource Key | ark:/13960/t9576637q |
| Language | English |
| Publisher Date | 1972-10-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics Time Dependence Shock Waves Laminar Boundary Layer Flat Plates Measuring Instruments Mathematical Models Unsteady Flow Heat Transfer Heat Flux Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
