Implicit vs Explicit Solver for Wave propagation problems
Implicit vs Explicit Solver for Wave propagation problems
(OP)
Dear Eng-tip users,
I have a question regarding the analysis of shock wave propagation problems in structures using FEM. Recently I was told that it is not possible to model shock wave propagation using implicit FEM schemes. The argument was that implicit schemes do not include this phenomena in their formulation... I am aware that explicit methods are generally recommended in cases like this cause they are far more efficient for problems of this nature. However, excluding computational efficiency, is there really any other reason preventing a shock wave problem from being solved with an implicit solver?
Thank you for your answers :)
I have a question regarding the analysis of shock wave propagation problems in structures using FEM. Recently I was told that it is not possible to model shock wave propagation using implicit FEM schemes. The argument was that implicit schemes do not include this phenomena in their formulation... I am aware that explicit methods are generally recommended in cases like this cause they are far more efficient for problems of this nature. However, excluding computational efficiency, is there really any other reason preventing a shock wave problem from being solved with an implicit solver?
Thank you for your answers :)





RE: Implicit vs Explicit Solver for Wave propagation problems
RE: Implicit vs Explicit Solver for Wave propagation problems
RE: Implicit vs Explicit Solver for Wave propagation problems
Both implicit and explicit numerical schemes are just recipes to solve the underlying differential equation (which, supposedly, is a decent abstraction of the reality).
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RE: Implicit vs Explicit Solver for Wave propagation problems
RE: Implicit vs Explicit Solver for Wave propagation problems
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Are you new to this forum? If so, please read these FAQs:
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083