UDF-electric field
 

hi,

i want to model electric field on particles. In my case because of field particles attain constant velocity, which will be equal to electrophoretic mobility*electric field. Can any one tell me how to do it.

thanks,

Srinivas

Re: UDF-electric field
 

There is an electromagnetic module available as an addon to fluent . check if it available with your fluent version. Otherwise learn how to include udf functions and you got to add the effect of the field through the udf.

-H

please help me
 

can any body help me for simulate electrical field in fluent ?
please contact me with akbariakbar10@yahoo.com
thanks

electric field
 

hi ,
can you activate a electric field in fluent if you use MHD model.

yours

Fluent version
 

Hi Dear

Which version of FLUENT does have MHD addon modules ?

thanks

Hi
I dont know about the fluent modules, but i solved the similar problem.
U can get the electric field by solving the poissons equation for applied or induced potential. This u need to do by defining a udf. So, now u can take the derivative of potential to get electric field in both directions.

thanks you very much

Do you still have your UDF to help me during my job?

many thanks

ya, i have that udf so that i can help you

which edition! can u supply some message?

@ vsmkrm298
 

:confused:for the applying mhd, which type of geometry should b prepared.....
means, is we hv to make some special geometrical part for that ?????
please help me out....thnks :confused:

i cant understand what u are asking

vsmkrm298
 

actually i have to apply electromagnetic field rectangular duct, but at a particular region....so for that i have make any different volume at that region

for example i have attached the pic....

In which part exactly do you want to apply electromagnetic field?

@ Payam89
 

as i hv shown in the figure, i.e. in a duct of 50 cm of length i have to apply electromagnetic field with stirring effect within 10 cm in between.

thanks.... :)

After you active MHD panel.you should first select 2 face and then put on voltage to to each face.then you run and it will show you electric field...but if you have magnetic field it doesn't need any iteration.

@ Payam89
thanks 4 ur reply....
since i hv to apply mhd in some area....so do i hv 2 make some geometry of that area...
because when i m applying mhd, result comes for complete area....or there is any other way for that....

Electric Field
 

how can it understand in which area you are going to apply electric field....you should tell him!

you need to apply 2 faces:)

@Payam89
yes u r right but it always ask only for the zone(i.e. fluid or solid).... not for any plane or wall...
thanks...

I had worked on MHD before and i change the software to OpenFOAM...

udf on electric field
 

Hi, I am working on electric field coalescence with fluent. Could you please send me you udf on electric field as well? Thank you very much!