The mechanics of film cooling
Thin liquid wall films flowing under the influence of high-velocity turbulent gas streams were studied for the purpose of obtaining an understanding of the mechanics of film cooling. Conditions which insure liquid-film attachment to solid surfaces without loss of unevaporated liquid to the gas strea...
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| Format: | Others |
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1954
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| Online Access: | https://thesis.library.caltech.edu/4740/1/Knuth_el_1954.pdf Knuth, Eldon L (1954) The mechanics of film cooling. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/G4AT-5P75. https://resolver.caltech.edu/CaltechETD:etd-12032003-112656 <https://resolver.caltech.edu/CaltechETD:etd-12032003-112656> |
| Summary: | Thin liquid wall films flowing under the influence of high-velocity turbulent gas streams were studied for the purpose of obtaining an understanding of the mechanics of film cooling. Conditions which insure liquid-film attachment to solid surfaces without loss of unevaporated liquid to the gas stream when simple radial-hole injectors are used were found; the maximum allowable coolant-flow rate for a stable coolant film was determined (a stable coolant film is obtained when no unevaporated coolant is entrained by the gas stream as the result of interfacial disturbances); and a method for calculating the evaporation rate and the surface temperature for a stable inert coolant film was found. |
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