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Luminescent oil-film skin-friction meter
AIAA Journal, 1998The principles of a luminescent oil-e lm skin-friction meter are described. Unlike the interferometric oil-e lm methods, this technique measures skin friction by detecting luminescent intensity of an oil e lm seeded with luminescent probe molecules. The measurement system for luminescence imaging is simple and easy to use, and this technique requires ...
Tianshu Liu, J. P. Sullivan
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Journal of the American Oil Chemists' Society, 1961
AbstractResults of studies of the effects of various factors on film yellowing, the mechanism of yellowing, its inhibition, and isolation and characterization of the yellow constituents are reported.Yellowing appears to be a side reaction unrelated to the drying process, but colorless precursors of the yellow compounds are formed as a result of an ...
O. S. Privett +3 more
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AbstractResults of studies of the effects of various factors on film yellowing, the mechanism of yellowing, its inhibition, and isolation and characterization of the yellow constituents are reported.Yellowing appears to be a side reaction unrelated to the drying process, but colorless precursors of the yellow compounds are formed as a result of an ...
O. S. Privett +3 more
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Films at oil-water interfaces. III
Journal of Colloid Science, 1948Abstract Experiments on the properties of films adsorbed at oil-water interfaces have been extended to include variation of the chain length of the adsorbed molecules, temperature, and the nature of the oil. In general, the evidence supports the hypothesis of an interfacial film in which the polar group is anchored at the interface and the ...
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Journal of Fluids Engineering, 1939
Abstract A method is described for depositing very thin lubricating-oil films of any specified thickness of the order of 10−7 in. on polished metal in connection with experiments on boundary friction. The oil to be deposited is converted into a highly dispersed fog consisting largely of positively charged particles.
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Abstract A method is described for depositing very thin lubricating-oil films of any specified thickness of the order of 10−7 in. on polished metal in connection with experiments on boundary friction. The oil to be deposited is converted into a highly dispersed fog consisting largely of positively charged particles.
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Photogrammetry in Oil-Film Interferometry
AIAA Journal, 2007Theapplication of photogrammetry to the measurement of skin friction using oil-film interferometry isdiscussed. Oil-film interferometry and photogrammetry are first described to justify the need for photogrammetry, and then the method is applied to two flows.
J. W. Naughton, T. Liu
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Methodology for Piston Ring Oil Accumulation and Oil Film Separation
SAE Technical Paper Series, 2022<div class="section abstract"><div class="htmlview paragraph">Investigating the oil transport mechanisms of a combustion engine is essential to decrease engine losses and optimize overall performance. As explained in [<span class="xref">1</span>] the amount of oil at predefined positions can be investigated by mixing the engine ...
Fabian Horst Ruch, Georg Wachtmeister
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