Aerodynamic of Projectile

Dzul Fikri · November 14, 2018, 11:23

Hello
I want to ask if the simulation I did is correct?
in this case i simulate about the exterior ballistics of projectile using ansys fluent with Spalart-Allmaras model,
i want to get the aerodynamic coefficient of the projectile,
i had done with my simulation but i still confuse with it
this is some iteration graph of my simulation
please help me for my final project hehe

and can you explain what is the convergence?

LuckyTran · November 14, 2018, 11:32

Results look good. You can see the drag and lift is asymptotic. What is the issue you are having? You can fine tune and tweak your case by using different grids and settings, but this is a very good starting point.

Dzul Fikri · November 14, 2018, 11:41

Is the simulation that I did correct?
I want to find the drag value of the projectile
how to get it?

LuckyTran · November 14, 2018, 14:24

You gave a plot of the drag... What's the issue?

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November 14, 2018, 11:32		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	Results look good. You can see the drag and lift is asymptotic. What is the issue you are having? You can fine tune and tweak your case by using different grids and settings, but this is a very good starting point.

November 14, 2018, 11:41		#3
Dzul Fikri New Member Dzul Fikri Hidayatulloh Join Date: Nov 2018 Posts: 2 Rep Power: 0	Is the simulation that I did correct? I want to find the drag value of the projectile how to get it?

November 14, 2018, 14:24		#4
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	You gave a plot of the drag... What's the issue?