Problem with flows not being able to enter a tube

HWilliams79 · February 21, 2022, 15:11

I have a box with an outlet at one end and four inlets into which I feed four different gases (two of the gases enter through large pipes with large mass flow rates and two of them enter through small pipes with small mass flow rates).

The problem I have is that the two gases going through the small pipe start to enter the box but then get suppressed by the gases with the larger mass flow rates which flood the box and are unable to proceed further (as shown in the attached image).

Is there some kind of backflow going on?

LuckyTran · February 22, 2022, 01:31

What is even being plotted? What even are the boundary conditions?

cwl · February 25, 2022, 07:02

Quote:

the two gases going through the small pipe start to enter the box but then get suppressed by the gases with the larger mass flow

How do you detect it / what makes you think so?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Initialization with two different initial states-Shock tube problem.!!!	Vino	SU2	9	August 3, 2022 13:20
[ANSYS Meshing] Interface wall problem between outer tube face and external flow domain	Onurozcan	ANSYS Meshing & Geometry	0	February 21, 2016 08:47
[ANSYS Meshing] Problem in Meshing a tube in tube Helical HX	Maradona	ANSYS Meshing & Geometry	0	August 4, 2014 08:50
Shock Tube problem	mouna lamnaouer	FLUENT	1	September 22, 2011 13:47
Need help in setting up a shock tube problem	kalee	FLUENT	0	November 2, 2007 15:11

February 22, 2022, 01:31		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,751 Rep Power: 66	What is even being plotted? What even are the boundary conditions?