alpha.water variableHeightFlowRate b.c.

Federico_ · January 22, 2021, 12:14

Hi everyone,
I'm simulating a flow around a geometry in a channel through interFoam. At the beginning the domain is full of air then, using setFields, I fill a part of it with water. My question is regarded the variableHeightFlowRate b.c used for the outlet, because I don't understand how lowerBound and upperBound work: if alpha<lowerBound (i.e. upperBound) alpha is fixed to a value but I don't understand if I have to explicit this value and where.

outlet
{
type variableHeightFlowRate;
lowerBound 0.1;
upperBound 0.9;
value $internalField;
}

Federico_ · January 28, 2021, 10:23

Can anybody help me?

January 22, 2021, 12:14	alpha.water variableHeightFlowRate b.c.	#1
Federico_ New Member Federico Join Date: Jan 2021 Posts: 13 Rep Power: 5	Hi everyone, I'm simulating a flow around a geometry in a channel through interFoam. At the beginning the domain is full of air then, using setFields, I fill a part of it with water. My question is regarded the variableHeightFlowRate b.c used for the outlet, because I don't understand how lowerBound and upperBound work: if alpha<lowerBound (i.e. upperBound) alpha is fixed to a value but I don't understand if I have to explicit this value and where. outlet { type variableHeightFlowRate; lowerBound 0.1; upperBound 0.9; value $internalField; } Last edited by Federico_; January 22, 2021 at 14:40.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[OLAFLOW] The OLAFLOW Thread	Phicau	OpenFOAM Community Contributions	457	March 27, 2024 00:59
Negative min alpha.water values	nschulman723	OpenFOAM	2	June 29, 2021 23:28
Free Surface Ship Flow	timfranke	OpenFOAM Running, Solving & CFD	322	March 3, 2021 09:04
objects oscillate at high speed causing collapse in Dynamic mesh and overset mesh ca	insane	OpenFOAM Running, Solving & CFD	0	May 17, 2020 22:35
Free surface issues with interDyMFoam for hydroturbine	oumnion	OpenFOAM Running, Solving & CFD	0	October 6, 2017 14:05

January 28, 2021, 10:23		#2
Federico_ New Member Federico Join Date: Jan 2021 Posts: 13 Rep Power: 5	Can anybody help me?