Abstract: The feasibility of using a new characteristic dimension (equivalent diameter) is explored for predicting rarefied flows in noncircular tubes. A conclusion is that a single characteristic dimension ...

Abstract: A generalized approach based on a model of the Boltzmann equation is suggested for predicting velocity profiles and gas flow rates through trapezoidal microgaps. Sample results are given for ...

Abstract: An experimental investigation of the mechanics of hydrodynamic lubrication and heat generation and dissipation of packed-gland rotary shaft seals was performed on a somewhat novel design. The ...