타이틀 |
Starting Loads in Supersonic Engine Wind Tunnels |
저자 |
Noboru SAKURANAKA, Takashi SHIMURA, Toru MITANI, Muneo IZUMIKAWA, Sadatake TOMIOKA, Tetsuo HIRAIWA |
Keyword |
wind tunnel; starting loads; supersonic nozzle flow |
URL |
http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001360.pdf?id=NALTR0001360 |
보고서번호 |
NAL TR-1360 |
발행년도 |
1998.10 |
출처 |
NAL (National Aerospace Laboratory of Japan) |
ABSTRACT |
Starting loads, which are especially severe in free-jet type engine wind tunnels, were investigated in order to carry out accurate and safe force measurement. Unsteady pressures and forces were measured and analyzed by fast Fourierto be the flow structure in which nozzle flow is recompressed by a separation oblique-shock wave and impinges on the model installed on a force measuring system (FMS). |