Clearance, Leakage, and Contact Temperature in a Thermoelastically Deformed Seal-Like Configuration

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Abstract
Equations are derived for clearance, leakage, and contact temperatures for conditions where initially flat rubbing surfaces are deformed thermally to produce a sequence of equally spaced contact patches, separated by regions where the surfaces withdraw from one another. One paradoxical result is that increased contact pressure or preload on the seal increases leakage when sliding takes place above a critical speed.

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