Injection definition

dokeun · July 19, 2010, 06:22

Hello

I'd like to repeat the water jet simulation done by Jiangfeng Wang(http://www.worldscinet.com/mplb/24/2...910023475.html)

flow region is 152(y)x127(z)x600(x)mm
inlet flow is air(M=1.94, P=29000Pa, T=304.1K) form x=0 to normal direction.
Injection condition described in this paper is as follows

injection position : x=139mm, y=76mm, z=0mm
nozzle diameter : 0.5mm
mass flow rate : 0.02kg/s
temperature : 298.15K
initial velocity : 40m/s(to z-direction)
initial radius of water droplet : 0.5um

All most all parameter can be defined in the injection point properties but, I have no idea how to define the injection nozzle diameter in fluent.

Thank you for your kindness in advance

dokeun · July 19, 2010, 10:07

I think I may find a way partially to defining the water injection for the problem

Water is injected from a nozzle which has 0.5 $\mu$ m for its diameter.

So it may be simulated solid-cone injection in which has zero cone angle( $\Phi$ =0) and r=0.25 $\mu$ m

I wonder if I get a right way of..

July 19, 2010, 06:22	Injection definition	#1
dokeun Member Dokeun, Hwang Join Date: Apr 2010 Location: Korea, Republic of Posts: 98 Rep Power: 16	Hello I'd like to repeat the water jet simulation done by Jiangfeng Wang(http://www.worldscinet.com/mplb/24/2...910023475.html) flow region is 152(y)x127(z)x600(x)mm inlet flow is air(M=1.94, P=29000Pa, T=304.1K) form x=0 to normal direction. Injection condition described in this paper is as follows injection position : x=139mm, y=76mm, z=0mm nozzle diameter : 0.5mm mass flow rate : 0.02kg/s temperature : 298.15K initial velocity : 40m/s(to z-direction) initial radius of water droplet : 0.5um All most all parameter can be defined in the injection point properties but, I have no idea how to define the injection nozzle diameter in fluent. Thank you for your kindness in advance

July 19, 2010, 10:07	using cone injection	#2
dokeun Member Dokeun, Hwang Join Date: Apr 2010 Location: Korea, Republic of Posts: 98 Rep Power: 16	I think I may find a way partially to defining the water injection for the problem Water is injected from a nozzle which has 0.5 $\mu$ m for its diameter. So it may be simulated solid-cone injection in which has zero cone angle( $\Phi$ =0) and r=0.25 $\mu$ m I wonder if I get a right way of.. Last edited by dokeun; July 19, 2010 at 23:47.

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