setFields -time <range> ?

wolfindark · March 19, 2013, 04:48

Dear All,

by using "setFields -time 0,20 " is it possible to give a same constant temperature value to some cells at every time step during 20 seconds?

I tried but does not work.

pleased if you could give some idea how can I do that?

best regards

mturcios777 · March 19, 2013, 11:18

setFields will change fields that already exist, so all you could do with your command is apply the setFieldsDict commands to 0-20. If you want a source term during simulation, you'll have to either:

1. Program it into your solver
2. In 2.1.x, use the sources option
3. In 2.2.x, use fvOptions

wolfindark · March 19, 2013, 18:53

thank you mutircios

i use OF2.1.1, buoyantBoussineqPimpleFoam solver.
By using sources option do you think i can determine a spherical volume inside the fluid region as a heat source?
regards

mturcios777 · March 20, 2013, 11:45

Yes indeed. I haven't used sources much so I'm not overly familiar with it, so you'll have to do some digging.

kokab · April 29, 2017, 06:01

hi
I also want to use setFieldsABLDict to implement roughness in the channel, but the problem is that, by this command as a pre_processing it is just implemented for the first time step as an initial condition. but I want it to be the constant effect during the time. does anyone have idea about it?

March 19, 2013, 04:48	setFields -time <range> ?	#1
wolfindark Member Neilson Whit Join Date: Aug 2011 Posts: 74 Rep Power: 14	Dear All, by using "setFields -time 0,20 " is it possible to give a same constant temperature value to some cells at every time step during 20 seconds? I tried but does not work. pleased if you could give some idea how can I do that? best regards

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March 19, 2013, 11:18		#2
mturcios777 Senior Member Marco A. Turcios Join Date: Mar 2009 Location: Vancouver, BC, Canada Posts: 740 Rep Power: 28	setFields will change fields that already exist, so all you could do with your command is apply the setFieldsDict commands to 0-20. If you want a source term during simulation, you'll have to either: 1. Program it into your solver 2. In 2.1.x, use the sources option 3. In 2.2.x, use fvOptions

March 19, 2013, 18:53		#3
wolfindark Member Neilson Whit Join Date: Aug 2011 Posts: 74 Rep Power: 14	thank you mutircios i use OF2.1.1, buoyantBoussineqPimpleFoam solver. By using sources option do you think i can determine a spherical volume inside the fluid region as a heat source? regards

March 20, 2013, 11:45		#4
mturcios777 Senior Member Marco A. Turcios Join Date: Mar 2009 Location: Vancouver, BC, Canada Posts: 740 Rep Power: 28	Yes indeed. I haven't used sources much so I'm not overly familiar with it, so you'll have to do some digging.

April 29, 2017, 06:01		#5
kokab New Member kokab Join Date: Mar 2017 Posts: 11 Rep Power: 9	hi I also want to use setFieldsABLDict to implement roughness in the channel, but the problem is that, by this command as a pre_processing it is just implemented for the first time step as an initial condition. but I want it to be the constant effect during the time. does anyone have idea about it?