Solving magnetic field multiple domains in same mesh

kar · January 30, 2008, 06:47

Hello all,

how to solve a problem where different geometrical objects with different thermal and electrical properties must be solved on same mesh? For example when solving magnetic field into induction coil and there's some other material inside!
Also - how to generate shuch mesh where object boundaries coincide with mesh cells?
Soon I will have to solve this one and at the moment I have no idea.. Your comments and advices are welcome!

hjasak · January 30, 2008, 06:51

You don't: you make material properties a field and then define diferent values at different parts of the domain.

Clear?

Hrv

kar · January 30, 2008, 08:54

I guess, no

is it really unneccessary for mesh to fit boundaries like metal-air?
Where field values are stored on the mesh? For example if half of the cell is in metal, other in air, how can I evaluate it's electrical conductivity? Or I don't understand how field is created and used?

January 30, 2008, 06:47	Hello all, how to solve a p	#1
kar Senior Member Kārlis Repsons Join Date: Mar 2009 Location: Latvia Posts: 111 Rep Power: 17	Hello all, how to solve a problem where different geometrical objects with different thermal and electrical properties must be solved on same mesh? For example when solving magnetic field into induction coil and there's some other material inside! Also - how to generate shuch mesh where object boundaries coincide with mesh cells? Soon I will have to solve this one and at the moment I have no idea.. Your comments and advices are welcome!

January 30, 2008, 06:51	You don't: you make material p	#2
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,907 Rep Power: 33	You don't: you make material properties a field and then define diferent values at different parts of the domain. Clear? Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

January 30, 2008, 08:54	I guess, no http://www.cfd-onl	#3
kar Senior Member Kārlis Repsons Join Date: Mar 2009 Location: Latvia Posts: 111 Rep Power: 17	I guess, no is it really unneccessary for mesh to fit boundaries like metal-air? Where field values are stored on the mesh? For example if half of the cell is in metal, other in air, how can I evaluate it's electrical conductivity? Or I don't understand how field is created and used?

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