The Womersley Number α—A Frequency Parameter for Pulsatile Flow


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The Womersley Number <emphasis role="italic">α</emphasis>—A Frequency Parameter for Pulsatile Flow
The Womersley Number <emphasis role="italic">α</emphasis>—A Frequency Parameter for Pulsatile FlowThe Womersley number, or the alpha parameter, is another dimensionless parameter that has been used in the study of fluid mechanics. This parameter represents a ratio of transient to viscous forces, just as the Reynolds number represented a ratio of inertial to viscous forces. A characteristic frequency represents the time dependence of the parameter. The Womersley number may be written as
Citation
Lee Waite, Ph.D., P.E.; Jerry Fine, Ph.D.: Applied Biofluid Mechanics, Second Edition. The Womersley Number α—A Frequency Parameter for Pulsatile Flow, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export