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modify equation
Posted 2012年7月23日 GMT-4 03:38 Acoustics & Vibrations, Parameters, Variables, & Functions, Structural Mechanics Version 4.2a 1 Reply
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hello
in wave eq module there is the equation ea.utt= f + c.grad^2 (u)
It is possible to assign values and variables to that "f" in the equation
for example f=1 or f=t (that is f = time)
I wonder how can I assign to f the expression grad( grad.( u ) )
I mean, what exactly should I write in the gap of f value in order to assign it that expression
where grad is the nabla operator in 2D
note that is grad(grad.u) and not grad. grad( u )
Thanks
in wave eq module there is the equation ea.utt= f + c.grad^2 (u)
It is possible to assign values and variables to that "f" in the equation
for example f=1 or f=t (that is f = time)
I wonder how can I assign to f the expression grad( grad.( u ) )
I mean, what exactly should I write in the gap of f value in order to assign it that expression
where grad is the nabla operator in 2D
note that is grad(grad.u) and not grad. grad( u )
Thanks
1 Reply Last Post 2012年7月25日 GMT-4 13:52
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Posted:
1 decade ago
any help? :s