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Particle radius or diameter variable for user defined interaction
Posted Dec 14, 2016, 6:51 p.m. EST Charged Particle Tracing, Particle Tracing for Fluid Flow Version 5.2a 1 Reply
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Is there a variable that can be referenced in the User Defined interaction force input that gives either particle's radius or diameter? I know how to find the distance between the particles and the x, y, and z positions of either particle, but I've found no reference to their size (or other properties that might be relevant). This severely limits the utility of the User Defined interaction force.
1 Reply Last Post Dec 16, 2016, 11:48 a.m. EST
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Posted:
8 years ago
I found the relevant variables in the equation view of Particle Properties. Specifically ftp.rp is radius. Also of interest, ftp.mp (mass) and ftp.Vp (volume).
In addition, I realized that using particle species index (fpt.sidx) as a parameter to piecewise functions I could reference additional non-standard particle properties (e.g. modulus of elasticity). So I have a function called 'E' which takes in an index and returns the modulus of elasticity parameter for the associated particle type. I am using this and other variables in a collision model.
In addition, I realized that using particle species index (fpt.sidx) as a parameter to piecewise functions I could reference additional non-standard particle properties (e.g. modulus of elasticity). So I have a function called 'E' which takes in an index and returns the modulus of elasticity parameter for the associated particle type. I am using this and other variables in a collision model.