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NACA-RM-A51H20 REV A
Comparison of drag, pressure recovery, and surface pressure of a scoop-type inlet and an NACA submerged inlet at transonic speeds
Year: 1951
Abstract: INTRODUCTION
The scoop-type inlet and the NACA submerged inlet are two current inlet designs which supply air to a jet engine and require a relatively short internal ducting. An NACA submerged inlet has been previously tested at transonic speeds (references 1 and 2), but no previous transonic tests of a scoop inlet are known. The purpose of this Investigation was to compare-the transonic characteristics of a scoop-type inlet with those of a submerged inlet. To provide a basis of comparison, the inlets were each mounted in the as me half body, the model being identical from the leading edge of the entrance lip rearward with either inlet mounted in the body. The model was tested on the transonic bump of the Ames 16-foot high-speed wind tunnel. The average Mach number over the bump test section ranged from 0.79 to 1.12.
The scoop-type inlet and the NACA submerged inlet are two current inlet designs which supply air to a jet engine and require a relatively short internal ducting. An NACA submerged inlet has been previously tested at transonic speeds (references 1 and 2), but no previous transonic tests of a scoop inlet are known. The purpose of this Investigation was to compare-the transonic characteristics of a scoop-type inlet with those of a submerged inlet. To provide a basis of comparison, the inlets were each mounted in the as me half body, the model being identical from the leading edge of the entrance lip rearward with either inlet mounted in the body. The model was tested on the transonic bump of the Ames 16-foot high-speed wind tunnel. The average Mach number over the bump test section ranged from 0.79 to 1.12.
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NACA-RM-A51H20 REV A
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:43:52Z | |
| date available | 2017-09-04T15:43:52Z | |
| date copyright | 01/01/1951 | |
| date issued | 1951 | |
| identifier other | PNMCWDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/46219 | |
| description abstract | INTRODUCTION The scoop-type inlet and the NACA submerged inlet are two current inlet designs which supply air to a jet engine and require a relatively short internal ducting. An NACA submerged inlet has been previously tested at transonic speeds (references 1 and 2), but no previous transonic tests of a scoop inlet are known. The purpose of this Investigation was to compare-the transonic characteristics of a scoop-type inlet with those of a submerged inlet. To provide a basis of comparison, the inlets were each mounted in the as me half body, the model being identical from the leading edge of the entrance lip rearward with either inlet mounted in the body. The model was tested on the transonic bump of the Ames 16-foot high-speed wind tunnel. The average Mach number over the bump test section ranged from 0.79 to 1.12. | |
| language | English | |
| title | NACA-RM-A51H20 REV A | num |
| title | Comparison of drag, pressure recovery, and surface pressure of a scoop-type inlet and an NACA submerged inlet at transonic speeds | en |
| type | standard | |
| page | 65 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1951 | |
| contenttype | fulltext |