Ground Effect

hk.narahari · September 11, 2019, 01:35

Hi,
It is known that the Lift and Drag coefficients change when an aircraft approaches landing called ground effect. Thought it would be good MS project at least as a 2D airfoil case. Has anyone tried simulating ground effect with SU2 ?
Thanks and Regards
Narahari

REJISH · November 10, 2021, 06:47

Hi,

Have you tried with "dynamic surface movement" option in SU2 to specify moving wall.

Thanks,
Rejish

jdp810 · November 12, 2021, 02:31

Hi,

Just use the bottom of the domain as a wall boundary condition and that is it. A moving wall by itself will not give you a ground effect.

JD

REJISH · November 12, 2021, 06:34

Hi,

If I am correct, in addition to that we should also specify velocity of that wall as well.

Thanks,
Rejish

jdp810 · November 12, 2021, 07:25

Only if you are worried about the boundary layer. If your height is higher than the boundary layer (which I may have assumed incorrectly), the wall velocity shouldn't change the results much. In an Euler simulation, both moving and regular wall will be the same as the wall condition is no penetration, not velocity = 0

September 11, 2019, 01:35	Ground Effect	#1
hk.narahari Member Dr. H.K. Narahari Join Date: Jan 2019 Posts: 49 Rep Power: 7	Hi, It is known that the Lift and Drag coefficients change when an aircraft approaches landing called ground effect. Thought it would be good MS project at least as a 2D airfoil case. Has anyone tried simulating ground effect with SU2 ? Thanks and Regards Narahari REJISH likes this.

November 12, 2021, 02:31		#3
jdp810 Member Jose Daniel Join Date: Jun 2020 Posts: 36 Rep Power: 6	Hi, Just use the bottom of the domain as a wall boundary condition and that is it. A moving wall by itself will not give you a ground effect. JD REJISH likes this.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
airfoil in ground effect	kiamakuyi	FLUENT	0	February 27, 2019 19:20
Ground effect calculation	Alvar	FLUENT	0	April 25, 2018 15:57
[ICEM] meshing airfoil in ground effect	cfd_peter	ANSYS Meshing & Geometry	12	March 14, 2017 18:30
[ICEM] Meshing Ground Effect and a Leading Edge Rotating Cylinder Correctly	HarryCP	ANSYS Meshing & Geometry	2	March 11, 2017 07:56
ground effect fluent modelling	meenakshi	FLUENT	0	June 11, 2008 02:09

November 10, 2021, 06:47		#2
REJISH New Member REJISH Join Date: Jul 2013 Posts: 18 Rep Power: 13	Hi, Have you tried with "dynamic surface movement" option in SU2 to specify moving wall. Thanks, Rejish

November 12, 2021, 06:34		#4
REJISH New Member REJISH Join Date: Jul 2013 Posts: 18 Rep Power: 13	Hi, If I am correct, in addition to that we should also specify velocity of that wall as well. Thanks, Rejish

November 12, 2021, 07:25		#5
jdp810 Member Jose Daniel Join Date: Jun 2020 Posts: 36 Rep Power: 6	Only if you are worried about the boundary layer. If your height is higher than the boundary layer (which I may have assumed incorrectly), the wall velocity shouldn't change the results much. In an Euler simulation, both moving and regular wall will be the same as the wall condition is no penetration, not velocity = 0