CEL expression

vmlxb6 · March 17, 2011, 17:17

I am using a CEL expression where I am calculating the force on a solid using the expression force_x()location. So at every time step, the CEL expression is called & force is calculated. I was thinking if is it possible to have a force calculated on the solid and also the force that was calculated in the previous time step ?????

eg: my simulation is at nth time step. How do I find the force @ time step (n-1) ?

ghorrocks · March 18, 2011, 07:39

Cannot be done. Well, not easily at least. CEL calculates values on the current variable values only.

If you really need the history values consider using user fortran.

March 17, 2011, 17:17	CEL expression	#1
vmlxb6 Senior Member Ugly Kid Joe Join Date: Aug 2010 Posts: 193 Rep Power: 16	I am using a CEL expression where I am calculating the force on a solid using the expression force_x()location. So at every time step, the CEL expression is called & force is calculated. I was thinking if is it possible to have a force calculated on the solid and also the force that was calculated in the previous time step ????? eg: my simulation is at nth time step. How do I find the force @ time step (n-1) ?

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March 18, 2011, 07:39		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Cannot be done. Well, not easily at least. CEL calculates values on the current variable values only. If you really need the history values consider using user fortran.