Initializing unsteady

Adithya_11 · May 26, 2021, 05:45

Hi
I am running an unsteady simulation of a GA airplane. The unsteady will be a full model since I want to study the influence of the rear propeller (actuator disk) on the tail.
Can I run steady state simulations on a half model and use that to initialize a full model for unsteady sims?
Any references I can look at?
Thank you

ghorrocks · May 26, 2021, 06:46

I would have thought that the flow coming off the prop would induce a spiral flow around the aircraft. This flow cannot be modelled with a symmetry plane.

I think you will have to do a full steady state model to get an initial condition.

May 26, 2021, 05:45	Initializing unsteady	#1
Adithya_11 Member Adithya Join Date: May 2021 Posts: 73 Rep Power: 4	Hi I am running an unsteady simulation of a GA airplane. The unsteady will be a full model since I want to study the influence of the rear propeller (actuator disk) on the tail. Can I run steady state simulations on a half model and use that to initialize a full model for unsteady sims? Any references I can look at? Thank you

May 26, 2021, 06:46		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	I would have thought that the flow coming off the prop would induce a spiral flow around the aircraft. This flow cannot be modelled with a symmetry plane. I think you will have to do a full steady state model to get an initial condition. aero_head likes this. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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