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Old   April 11, 2005, 18:08
Default UDF-electric field
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Srinivas
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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
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Old   April 12, 2005, 03:18
Default Re: UDF-electric field
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Harish
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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
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Old   October 10, 2011, 01:51
Default please help me
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akbar
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can any body help me for simulate electrical field in fluent ?
please contact me with akbariakbar10@yahoo.com
thanks
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Old   October 10, 2011, 05:13
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hi ,
can you activate a electric field in fluent if you use MHD model.

yours
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Old   October 28, 2012, 12:22
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payamfadaei
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Hi Dear

Which version of FLUENT does have MHD addon modules ?

thanks
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Old   October 29, 2012, 23:24
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vaseem akram shaik
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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.
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Old   October 30, 2012, 02:21
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thanks you very much

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

many thanks
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Old   October 30, 2012, 02:48
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ya, i have that udf so that i can help you
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Old   October 31, 2012, 09:37
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Quote:
Originally Posted by vsmkrm298 View Post
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.
which edition! can u supply some message?
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Old   November 1, 2012, 06:22
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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
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Old   November 1, 2012, 06:25
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i cant understand what u are asking
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Old   November 1, 2012, 07:24
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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....
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File Type: jpg untitled.jpg (3.7 KB, 30 views)
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Old   December 2, 2012, 03:47
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Quote:
Originally Posted by ambrish4u View Post
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?
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Old   December 4, 2012, 02:31
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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....
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Old   December 4, 2012, 03:00
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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.
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Old   December 11, 2012, 06:39
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Quote:
Originally Posted by Payam89 View Post
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....
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Old   December 11, 2012, 13:31
Default Electric Field
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how can it understand in which area you are going to apply electric field....you should tell him!

you need to apply 2 faces
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Old   December 12, 2012, 02:16
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Quote:
Originally Posted by Payam89 View Post
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...
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