درباره ما
NACA-RM-A53B06
An investigation of a four-blade single-rotation propeller in combination with an NACA 1-series D-type cowling at Mach numbers up to 0.83
Year: 1953
Abstract: INTRODUCTION
Current interest in the turbine-propeller type of power plant for moderately high-speed long-range airplanes has led to a need for data concerning the high-speed characteristics of propeller-spinner-cowling combinations suitable for use with large turbine engines. To provide data useful for design purposes, an investigation was undertaken in the Bmes 12-foot pressure wind tunnel to determine the characteristics of a representative propeller-spinner-cowling combination, employing the NACA 4-(5) (05) -041 four-blade single-rotation propeller with the NACA 1-46.5-047 1-series spinner and the NACA 1-62.8-070 cowling. One phase of the investigation, the determination of the characteristics of the propeller-spinner combination in the absence of the cowling, has been reported in reference 1. A second phase of the investigation, the effects of propeller operation and propeller-spinner juncture on the pressure-recovery characteristics of the propeller-spinner-cowling combination, has been reported in reference 2.
Presented herein are the force-test results for the propeller operating in the presence of the spinner-cowling combination, obtained concurrently with the data presented in reference 2. A comparison is made of the results obtained with the propeller operating in the presence of the cowling with the results presented in reference 1. static pressures measured on the surfaces of the cowling, with the propeller removed and with the propeller operating, are included.
The tests were made with the propeller-spinner-cowling combination at an angle of attack of O° for propeller blade angles from 40° to 60°, for inlet-velocity ratios from 0.26 to 1.33, and at Mach numbers from 0.20 to 0.83. The Reynolds number was constant at 1.5 million per foot throughout the tests.
Current interest in the turbine-propeller type of power plant for moderately high-speed long-range airplanes has led to a need for data concerning the high-speed characteristics of propeller-spinner-cowling combinations suitable for use with large turbine engines. To provide data useful for design purposes, an investigation was undertaken in the Bmes 12-foot pressure wind tunnel to determine the characteristics of a representative propeller-spinner-cowling combination, employing the NACA 4-(5) (05) -041 four-blade single-rotation propeller with the NACA 1-46.5-047 1-series spinner and the NACA 1-62.8-070 cowling. One phase of the investigation, the determination of the characteristics of the propeller-spinner combination in the absence of the cowling, has been reported in reference 1. A second phase of the investigation, the effects of propeller operation and propeller-spinner juncture on the pressure-recovery characteristics of the propeller-spinner-cowling combination, has been reported in reference 2.
Presented herein are the force-test results for the propeller operating in the presence of the spinner-cowling combination, obtained concurrently with the data presented in reference 2. A comparison is made of the results obtained with the propeller operating in the presence of the cowling with the results presented in reference 1. static pressures measured on the surfaces of the cowling, with the propeller removed and with the propeller operating, are included.
The tests were made with the propeller-spinner-cowling combination at an angle of attack of O° for propeller blade angles from 40° to 60°, for inlet-velocity ratios from 0.26 to 1.33, and at Mach numbers from 0.20 to 0.83. The Reynolds number was constant at 1.5 million per foot throughout the tests.
Show full item record
| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:47:29Z | |
| date available | 2017-09-04T16:47:29Z | |
| date copyright | 01/01/1953 | |
| date issued | 1953 | |
| identifier other | WFMCWDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/110895 | |
| description abstract | INTRODUCTION Current interest in the turbine-propeller type of power plant for moderately high-speed long-range airplanes has led to a need for data concerning the high-speed characteristics of propeller-spinner-cowling combinations suitable for use with large turbine engines. To provide data useful for design purposes, an investigation was undertaken in the Bmes 12-foot pressure wind tunnel to determine the characteristics of a representative propeller-spinner-cowling combination, employing the NACA 4-(5) (05) -041 four-blade single-rotation propeller with the NACA 1-46.5-047 1-series spinner and the NACA 1-62.8-070 cowling. One phase of the investigation, the determination of the characteristics of the propeller-spinner combination in the absence of the cowling, has been reported in reference 1. A second phase of the investigation, the effects of propeller operation and propeller-spinner juncture on the pressure-recovery characteristics of the propeller-spinner-cowling combination, has been reported in reference 2. Presented herein are the force-test results for the propeller operating in the presence of the spinner-cowling combination, obtained concurrently with the data presented in reference 2. A comparison is made of the results obtained with the propeller operating in the presence of the cowling with the results presented in reference 1. static pressures measured on the surfaces of the cowling, with the propeller removed and with the propeller operating, are included. The tests were made with the propeller-spinner-cowling combination at an angle of attack of O° for propeller blade angles from 40° to 60°, for inlet-velocity ratios from 0.26 to 1.33, and at Mach numbers from 0.20 to 0.83. The Reynolds number was constant at 1.5 million per foot throughout the tests. | |
| language | English | |
| title | NACA-RM-A53B06 | num |
| title | An investigation of a four-blade single-rotation propeller in combination with an NACA 1-series D-type cowling at Mach numbers up to 0.83 | en |
| type | standard | |
| page | 72 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1953 | |
| contenttype | fulltext |