DPM - Single Bubble injection into a fluid domain. -- CFD Online Discussion Forums

March 19, 2013, 12:48	DPM - Single Bubble injection into a fluid domain.	#1
AdarshGouda New Member Adarsh Gouda Join Date: Feb 2013 Location: Singapore Posts: 13 Rep Power: 13	I have a 12m long tube. Dia : 0.2m and 2 m/s is the fluid velocity. Velocity of injection is about 4 m/s. (( 0.01 -0.01 0.01 0.000 0.000 4.000 0.000068 300.000 0.024460) injection-0:0) time step : 1e-5 What should be my Ideal Start time and stop time for just a single bubble inject? Should I start injecting it after the fluid domain has completely stabilized in the tube with is about 6 seconds? (t = length/velocity = 12 / 2 ) If so what should be my stop time?

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