|September 29, 2004, 17:13||
injection/ particle tracking
Dear CFX users,
I am trying to simulate the following case: air flows through a pipe. Water droplets are injected from a arbitrary location situated in the pipe wall.
The difficulties are:
1. How can I define the injection points/regions?
2. It is possible to activate evaporation for the water droplets?
Thank you very much,
|October 22, 2004, 17:29||
Re: injection/ particle tracking
Here is the answer for your 1st question.
Yes, you can define the injection points. This has to be done in the comman file. You can find more on this in CFX manual. For your convenience I attached a sample code below.
NORMVEL = 45.72;
PARTDIAM = 300.0E-6;
PMFLOW = 0.0001;
:>MODEL BOUNDARY CONDITIONS
:>PARTICLE TRANSPORT BOUNDARY CONDITIONS
POSITIONS IN X DIRECTION #NUMPART* 0.0
POSITIONS IN Y DIRECTION #XPSTART TO #XPEND BY #INC
POSITIONS IN Z DIRECTION #NUMPART* 0.0
INITIAL PARTICLE DIAMETERS #NUMPART* #PARTDIAM
PARTICLE MASS FLOW RATES #NUMPART* #PMFLOW
U VELOCITY #NUMPART* #NORMVEL
V VELOCITY #NUMPART* 0.0
W VELOCITY #NUMPART* 0.0
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