Is it possible to extract lift and drag curve from Ansys fluent?

KikoAzor · April 10, 2019, 12:46

Hey! I am currently working on flow analysis over 2D airfoil in Fluent ansys... I am new in this programme so after a day of hard work I managed to make the simulation according to the youtube video even with changes of AOA... Now I would like to somehow extract lift, drag and and moment curve, or at least first 2. Does anyone know, if it is possible and how? or any fine tutorial would also nice. Thank you for you answers.

flow-mo-mcfadden · April 10, 2019, 19:59

Take a look at the "Reports" section in the outline tree. You'll find both forces and moment calculations are available. Its as easy as choosing your surface and the appropriate direction vector to meet you criteria.

KikoAzor · April 11, 2019, 06:50

Hello,
Thank you for your answer... I tried it but it didnt work.. It made just a horizontal line when I tried lift coefficient :/

KikoAzor · April 11, 2019, 14:40

Hello, in the end I managed to did a bit differently via "reference frames" the lift curve looks fine now.... I have just small problem, that for example on lift curve, the paramaters of lift coefficient range from 1000 to 6000 and I guess it shoud be form 0 to max 1,5.... do you know why is this happening?

AlexanderZ · April 11, 2019, 22:25

youtube: "lift coef fluent ansys tutorial"
https://www.youtube.com/watch?v=f3K8IEP2szI

it took 3 sec

best regards

KikoAzor · April 12, 2019, 03:42

Hello, thank you for your answer Alexander, I checked youtube and google already, the problem with the video is that it gives you just one parameter of the drag/lift... I am working on rotating airfoil simulation, I created 2 interface zones, one is the fluid, and the other one is rotating(inside is the airfoil as the rotating wall) to get a simulation with rotating airfoil (a.k.a in different AOA)...so to do it like this would take hours, one by one so I would be able to make a lift curve from it..

cktan22 · April 18, 2021, 18:04

Quote:

Originally Posted by KikoAzor

Hello, thank you for your answer Alexander, I checked youtube and google already, the problem with the video is that it gives you just one parameter of the drag/lift... I am working on rotating airfoil simulation, I created 2 interface zones, one is the fluid, and the other one is rotating(inside is the airfoil as the rotating wall) to get a simulation with rotating airfoil (a.k.a in different AOA)...so to do it like this would take hours, one by one so I would be able to make a lift curve from it..

Hi, did you get the method? I`m interested to know as well. I`m also working on this and couldn`t get the value calculated correctly.

April 10, 2019, 12:46	Is it possible to extract lift and drag curve from Ansys fluent?	#1
KikoAzor New Member Kristián Azor Join Date: Apr 2019 Posts: 5 Rep Power: 8	Hey! I am currently working on flow analysis over 2D airfoil in Fluent ansys... I am new in this programme so after a day of hard work I managed to make the simulation according to the youtube video even with changes of AOA... Now I would like to somehow extract lift, drag and and moment curve, or at least first 2. Does anyone know, if it is possible and how? or any fine tutorial would also nice. Thank you for you answers.

April 12, 2019, 03:42		#6
KikoAzor New Member Kristián Azor Join Date: Apr 2019 Posts: 5 Rep Power: 8	Hello, thank you for your answer Alexander, I checked youtube and google already, the problem with the video is that it gives you just one parameter of the drag/lift... I am working on rotating airfoil simulation, I created 2 interface zones, one is the fluid, and the other one is rotating(inside is the airfoil as the rotating wall) to get a simulation with rotating airfoil (a.k.a in different AOA)...so to do it like this would take hours, one by one so I would be able to make a lift curve from it.. Last edited by KikoAzor; April 12, 2019 at 04:52.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Calculation of lift and drag coefficients on airfoil	CoolHersheys	OpenFOAM Post-Processing	5	September 27, 2021 06:04
How to extract Lift and Drag coefficients from Ansys Fluent	Abdul_Rehman	FLUENT	9	March 22, 2021 08:37
Lift and Drag Force - 3D Wing ANSYS FLUENT	jonsyesause	FLUENT	0	April 26, 2017 12:31
Lift and Drag pattern change wit FLUENT 16 and 13 PISO for same mesh n solver setting	arunraj	FLUENT	0	June 2, 2016 22:58
How does FLUENT calculate lift and drag?	xTamx420	FLUENT	0	May 30, 2011 13:35

April 10, 2019, 19:59		#2
flow-mo-mcfadden New Member OH Join Date: Dec 2018 Posts: 11 Rep Power: 8	Take a look at the "Reports" section in the outline tree. You'll find both forces and moment calculations are available. Its as easy as choosing your surface and the appropriate direction vector to meet you criteria.

April 11, 2019, 06:50		#3
KikoAzor New Member Kristián Azor Join Date: Apr 2019 Posts: 5 Rep Power: 8	Hello, Thank you for your answer... I tried it but it didnt work.. It made just a horizontal line when I tried lift coefficient :/

April 11, 2019, 14:40		#4
KikoAzor New Member Kristián Azor Join Date: Apr 2019 Posts: 5 Rep Power: 8	Hello, in the end I managed to did a bit differently via "reference frames" the lift curve looks fine now.... I have just small problem, that for example on lift curve, the paramaters of lift coefficient range from 1000 to 6000 and I guess it shoud be form 0 to max 1,5.... do you know why is this happening?

April 11, 2019, 22:25		#5
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 35	youtube: "lift coef fluent ansys tutorial" https://www.youtube.com/watch?v=f3K8IEP2szI it took 3 sec best regards