End Effects of Rare Gas Flow in Short Channels and in Squeezed-Film Dampers

	Nanotech 2002 Vol. 1 Technical Proceedings of the 2002 International Conference on Modeling and Simulation of Microsystems Chapter 2: Micro and Nano Fluidic Systems
	End Effects of Rare Gas Flow in Short Channels and in Squeezed-Film Dampers
Authors:	T. Veijola
Affilation:	Helsinki University of Technology, FI
Pages:	104 - 107
Keywords:	end effect, rarefied gas flow, compact model, squeezed-film damper, Knudsen number
Abstract:	Simple approximate design formulas (+-5%) for calculating the elongation of the idealized viscous flow channel of rare gas at Knudsen numbers Kn < 100 due to the open end effects. Rectangular channels with a large aspect ratio and circular channels are discussed. The elongation model is applied to a squeezed-film damper problem and a simple design formula is presented that approximates the end effects in the damper.
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ISBN:	0-9708275-7-1
Pages:	764
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