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How to write Nabla function in comsol 3.4
Posted 2012年12月3日 GMT-5 12:56 1 Reply
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Hello,
Can anyone tell me how to write nabla function in comsol 3.4? What is the syntax for this function? I wanna use it for dielectrophoresis and there is a term where I need to find the gradient of the electric field. So if anyone can help me with that it would be highly appreciated. Thank you.
Tasrif
Can anyone tell me how to write nabla function in comsol 3.4? What is the syntax for this function? I wanna use it for dielectrophoresis and there is a term where I need to find the gradient of the electric field. So if anyone can help me with that it would be highly appreciated. Thank you.
Tasrif
1 Reply Last Post 2012年12月3日 GMT-5 14:24
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Posted:
1 decade ago
Hi
there is no shortcut, from my reminder (neither not in v4) you must write out the components, check the doc on derivative variables and variables names, the fist and second order derivative of the dependent variables are defined within COMSOL, and exist if you have at least 2nd order discretization of your mesh elements
--
Good luck
Ivar
there is no shortcut, from my reminder (neither not in v4) you must write out the components, check the doc on derivative variables and variables names, the fist and second order derivative of the dependent variables are defined within COMSOL, and exist if you have at least 2nd order discretization of your mesh elements
--
Good luck
Ivar