Choked Flow About Vented or Cavitating HydrofoilsSource: Journal of Fluids Engineering:;1964:;volume( 086 ):;issue: 003::page 561Author:A. G. Fabula
DOI: 10.1115/1.3653173Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Linearized theory for two-dimensional, choked-tunnel flow is developed for a vented or cavitating hydrofoil midway between infinite parallel walls, when the upper and lower free streamlines detach at an arbitrary chordwise location and at the trailing edge, respectively. Superposition of step-profile solutions gives the arbitrary-profile solution. Numerical calculations are made for two vented hydrofoils for exhaust at 30 percent chord and tunnel height-to-chord ratio of 3.5. The agreement with experiment becomes good after correction for the pressure at the test-section, static-pressure tap due to the hydrofoil and the cavity. Various aspects of the comparison for equal cavity number of choked flow with unbounded flow are discussed.
keyword(s): Flow (Dynamics) , Hydrofoil , Tunnels , Pressure , Chords (Trusses) , Cavities AND Exhaust systems ,
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| contributor author | A. G. Fabula | |
| date accessioned | 2017-05-08T23:22:17Z | |
| date available | 2017-05-08T23:22:17Z | |
| date copyright | September, 1964 | |
| date issued | 1964 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27255#561_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/101045 | |
| description abstract | Linearized theory for two-dimensional, choked-tunnel flow is developed for a vented or cavitating hydrofoil midway between infinite parallel walls, when the upper and lower free streamlines detach at an arbitrary chordwise location and at the trailing edge, respectively. Superposition of step-profile solutions gives the arbitrary-profile solution. Numerical calculations are made for two vented hydrofoils for exhaust at 30 percent chord and tunnel height-to-chord ratio of 3.5. The agreement with experiment becomes good after correction for the pressure at the test-section, static-pressure tap due to the hydrofoil and the cavity. Various aspects of the comparison for equal cavity number of choked flow with unbounded flow are discussed. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Choked Flow About Vented or Cavitating Hydrofoils | |
| type | Journal Paper | |
| journal volume | 86 | |
| journal issue | 3 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3653173 | |
| journal fristpage | 561 | |
| journal lastpage | 567 | |
| identifier eissn | 1528-901X | |
| keywords | Flow (Dynamics) | |
| keywords | Hydrofoil | |
| keywords | Tunnels | |
| keywords | Pressure | |
| keywords | Chords (Trusses) | |
| keywords | Cavities AND Exhaust systems | |
| tree | Journal of Fluids Engineering:;1964:;volume( 086 ):;issue: 003 | |
| contenttype | Fulltext |