# how to define the porosity

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 October 28, 2005, 10:05 how to define the porosity #1 limingtiger Guest   Posts: n/a I use the following command to define the porosity, but the system keep the porosity to be 0. how to deal with the problem. ctab,4,solid,7,0.1,4,1,1,1,0,off,0,light ctname,4,soil MESH*> ctab,4,solid,7,0.1,4,1,1,1,0,off,0,light CELL TABLE NUMBER 4 IS SOLI NAME = soil COLOR INDEX = 7 POROSITY INDEX = 0 MATERIAL NUMBER = 4 SPIN INDEX = 1 GROUP NUMBER = 1 LIGHTING MATERIAL = 1 RADIATION = OFF CONDUCTION THICKNESS = 0.000000 INITIAL FREE SURFACE MATERIAL IS LIGHT MESH*> ctname,4,soil NAME OF CELL TABLE 4 IS soil

 October 28, 2005, 11:36 Re: how to define the porosity #2 allan Guest   Posts: n/a you can't have a solid that is porous. change your cell type to fluid

 October 30, 2005, 03:10 Re: how to define the porosity #3 limingtiger Guest   Posts: n/a dear allan, when I change the command, the same problem happend,how can deal with it? ctab,4,fluid,7,0.5,4,1,1,1,0,off,0,light CELL TABLE NUMBER 4 IS FLUI NAME = soil COLOR INDEX = 7 POROSITY INDEX = 0 MATERIAL NUMBER = 4 SPIN INDEX = 1 GROUP NUMBER = 1 LIGHTING MATERIAL = 1 RADIATION = OFF CONDUCTION THICKNESS = 0.000000 INITIAL FREE SURFACE MATERIAL IS LIGHT MESH*> ctname,4,soil NAME OF CELL TABLE 4 IS soil

 October 30, 2005, 07:30 Re: how to define the porosity #4 Tom Guest   Posts: n/a by Jove !! you have to give a porosity index 1 in your ctab then you have to define the porosity 1 under thermophysical models (resitstance ..) you have to suply alpha and betas then it should work it is described in the tutorials !

 November 1, 2005, 03:01 Re: how to define the porosity #5 limingtiger Guest   Posts: n/a thank you for your help

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