Parcourir par sujet "Rarefied gas flow"
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Design guidelines for thermally driven micropumps of different architectures based on target applications via kinetic modeling and simulations
(2019)The manufacturing process and architecture of three Knudsen type micropumps are discussed and the associated flow performance characteristics are investigated. The proposed fabrication process, based on the deposition of ... -
DSMC simulation of pressure driven binary rarefied gas flows through short microtubes
(2011)Binary gas flows driven by pressure gradient through short microtubes are studied by using an upgraded version of the Direct Simulation Monte Carlo (DSMC) method. Two types of mixtures, He/Xe and Ne/Ar, are examined. Several ... -
The friction factor of a rarefied gas flow in a circular tube
(2007)An expression for the estimation of the Poiseuille number for internal rarefied flows is developed. The derived formula is given in terms of dimensionless quantities, which are obtained by the solution of the flow based ... -
Gas-surface interaction in rarefied gas flows through long capillaries via the linearized Boltzmann equation with various boundary conditions
(2022)Reliable gas–surface interaction modeling is of major importance in consistent simulation of rarefied gas flows with applications in vacuum technology and micro-electromechanical systems. The effectiveness of the most ... -
A novel experimental setup for gas microflows
(2010)A new experimental setup for flow rate measurement of gases through microsystems is presented. Its principle is based on two complementary techniques, called droplet tracking method and constant-volume method. Experimental ... -
Pressure and temperature driven fully-developed rarefied gas flow in a channel with uniform injection/suction through its permeable walls
(2021)The pressure and temperature driven fully-developed rarefied gas flow between two parallel permeable plates, with uniform gas injection and suction from the bottom and top plates respectively, is investigated, based on the ... -
Reconsideration of the implicit boundary conditions in pressure driven rarefied gas flows through capillaries
(2019)The pressure driven rarefied gas flow through plane channels and tubes of various lengths is solved in a wide range of the gas rarefaction parameter by implementing the implicit boundary conditions for the incoming ...