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Relationship between two ways of modelling porous materials
Posted 2014年8月26日 GMT-4 07:39 0 Replies
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I have a question about modelling porous materials in COMSOL. For the same porous material, I can either model it in the ‘Pressure Acoustics’ physics using ‘Poroacoustics’ domain, or model it in ‘Poroelastic Waves’ physics. In ‘Poroacoustics’ I choose the ‘Johnson-Champoux-Allard’ (JAC) model for which I’ve got all the input parameters needed from some parameter characterization work (Porosity, Flow Resistance, Tortuosity and Characteristic lengths). But in ‘Poroelastic Waves’, where I guess Biot models was used, I need to input a new series of parameters.
My question is, can I possibly calculate some of the Biot parameters using the JAC parameters(especially the ‘Biot-willis’ and ‘Permeability’)? Is there any corresponding relationship between parameters of these two models?
Hello Zijian Cao
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