[GAMBIT] fuselage Meshing

sampathevs · June 30, 2012, 00:28

Dear All,
I need to mesh only a front part of a fuselage. I done with meshing.. Now my question is,My guide gave me a iges file which contains only that front part of fuselage..Should i have to create a control volume for that fuselage and mesh?? or can i directly continue with my meshing .. generally, for airfoils, we create a control volume like rectangular or circle shapes etc .. should i create that for meshing this ??

using GAMBIT.!!!!

I need ur suggestions and guidelines.. Thanks in Advance..

cfd seeker · June 30, 2012, 09:09

yes of course if you want to analyze flow field around it then you have to have a suitable domain around the aerodynamic object.
Regards

Far · June 30, 2012, 09:19

how you are going to segregate the base drag. May be you get the higher values due to larger dia. So may be you want to extend the fuselage to far-field and put the free slip condition on extended surface.

sampathevs · June 30, 2012, 12:03

ohkay, Thanks to all.. Actually I have to do thermal analysis on that fuselage.. and @far sir, I hope, i can answer you when i finish the analysis

sampathevs · June 30, 2012, 15:57

And Sir,
my fuselage is a 3D model. So can i use sphere as my flow field?

Far · June 30, 2012, 16:02

you can use hemisphere at inlet and cylinder at outlet. Full sphere is also good option.

sampathevs · June 30, 2012, 16:05

sir, if i keep a full sphere , then where should i define inlet and outlet

Far · June 30, 2012, 16:07

10-15 lengths upstream and sides, and 20-25 lengthes downstream

sampathevs · June 30, 2012, 16:11

I dint get you sir.

i have imported the iges file. Now wil u plz help me in creating a flow field?

sampathevs · June 30, 2012, 16:15

i created a brick as flow field.. is it fine sir?

Far · June 30, 2012, 16:19

can you show it?

sampathevs · June 30, 2012, 16:22

yes Sir, how can i ... shal i mail u the pic of that, or what should which file should i attach ?? ..

sampathevs · June 30, 2012, 16:27

Sir, I have mailed u .. to turboenginner@gmail.com

June 30, 2012, 00:28	fuselage Meshing	#1
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	Dear All, I need to mesh only a front part of a fuselage. I done with meshing.. Now my question is,My guide gave me a iges file which contains only that front part of fuselage..Should i have to create a control volume for that fuselage and mesh?? or can i directly continue with my meshing .. generally, for airfoils, we create a control volume like rectangular or circle shapes etc .. should i create that for meshing this ?? using GAMBIT.!!!! I need ur suggestions and guidelines.. Thanks in Advance..

June 30, 2012, 09:19		#3
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	how you are going to segregate the base drag. May be you get the higher values due to larger dia. So may be you want to extend the fuselage to far-field and put the free slip condition on extended surface. Last edited by Far; June 30, 2012 at 12:04.

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June 30, 2012, 09:09		#2
cfd seeker Senior Member Join Date: Mar 2011 Location: Germany Posts: 552 Rep Power: 20	yes of course if you want to analyze flow field around it then you have to have a suitable domain around the aerodynamic object. Regards

June 30, 2012, 12:03		#4
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	ohkay, Thanks to all.. Actually I have to do thermal analysis on that fuselage.. and @far sir, I hope, i can answer you when i finish the analysis

June 30, 2012, 15:57		#5
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	And Sir, my fuselage is a 3D model. So can i use sphere as my flow field?

June 30, 2012, 16:02		#6
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	you can use hemisphere at inlet and cylinder at outlet. Full sphere is also good option.

June 30, 2012, 16:05		#7
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	sir, if i keep a full sphere , then where should i define inlet and outlet

June 30, 2012, 16:07		#8
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	10-15 lengths upstream and sides, and 20-25 lengthes downstream

June 30, 2012, 16:11		#9
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	I dint get you sir. i have imported the iges file. Now wil u plz help me in creating a flow field?

June 30, 2012, 16:15		#10
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	i created a brick as flow field.. is it fine sir?

June 30, 2012, 16:19		#11
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	can you show it?

June 30, 2012, 16:22		#12
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	yes Sir, how can i ... shal i mail u the pic of that, or what should which file should i attach ?? ..

June 30, 2012, 16:27		#13
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 14	Sir, I have mailed u .. to turboenginner@gmail.com