Problem about DPM (how to define injections)

November 17, 2003, 23:20

Hello,every one!

I'm simulating an atomizer with DPM.I don't know how to set the injection properties,such as "injector inner Diam','injector outer Diam','spray half angle','relative velocity','Azimuthal angle' and so on.Can I set several injections?I hope someone can give some advice.Thanks a lot!

lingo

November 18, 2003, 21:39

Hi

If you know your droplet size distribution in advance, you should consider using FLUENT's non-atomizer type models such as single, group, cone, etc.

If you are interested in the droplet size distribution itself, you may consider using atomizer type models (air-blast, pressure-swirl etc.). To start with, use FLUENT's default values. However, if you like to get a specific distribution, you will need to alter the injection parameters and/or atomizing air (if used).

Chendhil.

November 18, 2003, 23:30

Chendhil:

Thank you for your answer!

lingo

November 17, 2003, 23:20	Problem about DPM (how to define injections)	#1
lingo Guest Posts: n/a	Hello,every one! I'm simulating an atomizer with DPM.I don't know how to set the injection properties,such as "injector inner Diam','injector outer Diam','spray half angle','relative velocity','Azimuthal angle' and so on.Can I set several injections?I hope someone can give some advice.Thanks a lot! lingo

November 18, 2003, 21:39	Re: Problem about DPM (how to define injections)	#2
Chendhil Guest Posts: n/a	Hi If you know your droplet size distribution in advance, you should consider using FLUENT's non-atomizer type models such as single, group, cone, etc. If you are interested in the droplet size distribution itself, you may consider using atomizer type models (air-blast, pressure-swirl etc.). To start with, use FLUENT's default values. However, if you like to get a specific distribution, you will need to alter the injection parameters and/or atomizing air (if used). Chendhil.

November 18, 2003, 23:30	Re: Problem about DPM (how to define injections)	#3
lingo Guest Posts: n/a	Chendhil: Thank you for your answer! lingo

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