Vertical Axis Wind Turbine | ANSYS CATIA Tutorial

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Final Year Project; Vertical Axis Wind Turbine
This is a tutorial to create the 2D geometry of a VAWT using CATIA. (You might want to pause during the video, a lot)
Fluid Analysis is then done on the turbine using ANSYS; a sliding mesh setup is used. The turbine can be optimized using ANSYS, and the results can be used for creating velocity contours and to control servo motors using LabVIEW.
A VAWT prototype is available at the end of the video with a demonstration of how a shaft encoder and servo motors work to control the turbine blades.
Useful Links:
Import aerofoil coordinate in catia:
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WIND TURBINE TUTORIALS WITH FLUENT(mesh interface and moving mesh )
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[@sirsariarslan]

Wow. The whole idea going on in my head for 2 months is here, became someones final year project in 2015.

[@MechTechSimulations]

Stunning combination of all the softwares!

[@tyoma_14]

5:35 DROP THOSE RESIDUALS BABY!!

[@EmmaMarch]

Amazing video, it really helped me a lot, thank you !

[@sk-7523]

Sir, thank you very much for your effort. I am trying a similar 2D project for H-Darrieus turbine. But unfortunately while drawing Cp vs TSR curve, I am getting ever-increasing values of Cp with the increase of TSR. Can you please help me?

[@gabrielalejandropandiellar8746]

Greetings, I've made a similar simulation of a VAWT for my master's degree thesis, which I have already delivered and passed. One of thing that I haven't able to do was scripting a user define function that makes the angular velocity a dependent variable to the Tip-Speed-Ratio, wind turbine radius and the wind's linear velocity. Can you tell me how to do that in a step by step tutorial? Because I am terrible in programming language, very badly.

[@lordwhiteblueeyes]

esta muy bueno catia ansys labview y matlab ( diseño , simulacion y control ) , mis respetos maestro :)

[@gasparsanchez6348]

Thank you, very good tutorial about this type of turbine. I have a question: 1.- Could you tell me which is the geometry you selected in each Edge Sizing and Face Sizing? 2.- Why you created Interface 1a and 1b? thanks!!! :)

[@MechanicalSpoon]

+Gaspar Sanchez 1.- I started with blade 1, 2, 3 edge sizing (the edges). After that the three circles (inner) then three circles (outer) then big circle (inner) then big circle (outer) then the big square. All of them are edges not faces. As for the inflation, I selected the three faces between the blades and the three circles. The boundaries are the three blades. 2.- You do this so you can allow the turbine and the blades to rotate in there circles. (there are four interfaces, so four inner circles and four outer circles) You use it in Mesh Interfaces.

[@Fallen_Browser]

is it master project or pHD.......?...awesome, you have been combine such as control, maltab code, and fluent software....GOOD

[@MechanicalSpoon]

+efi afrizal thankyou; it was in my B.E. degree

[@MechTechSimulations]

Stunning combination of all the softwares!

[@dabachimohamedamine9580]

That's amazing

[@diviyadeepsingh735]

i Can't click on mesh interface option in fluent (disabled). where could be the problem?? i followed each and every step mentioned. please help

[@haveanicetime7906]

Excellent!

[@yoohansol3219]

i really enjoy ur video

[@naveenkarri3401]

Grt video. It is really very helpful. I have a question. In the matlab code, why you used d and N in the denominator? Also, the matrices size is different for data collected and data used in the calculations. Can you please elaborate how you did that?

[@pratikanand2200]

How to calculate start-up speed of a turbine and its rpm at various wind speed and also how to calculate dynamic parameter.

[@philstat100]

Hi PRATIK ANAND: Did You get an answer to your question about how to calculate start up speed and it's rpm at various wind speeds? And what is dynamic parameter? Trying to learn to make my own VAWT. I need to learn a lot. Thank You for any information that You have time to send.

[@VLAHECO]

wwhattttrrr....wowwww...very cool...Ansys, matlab,catia,excel,servos,....wowww....niceee

[@laraflanagan9900]

Very nice video and project! I am trying to model something similar however just using a single airfoil with inside the large circle using fluent i can rotate it using a specified value for rotational velocity but i was wondering how did you input your parameter omega turbine? Thanks for your help

[@karanshaw5451]

I didnt understand how did u put parameters? Did u run separate simulation for all the values

[@alejorol04]

Hi bro, nice job! I have a question, why do you use a rotation velocity of turbina and why it doesn't depend of current's velocity? i'm working on a darrieus turbine and i want to simulate it on ansys but i dont have much experience on it. I hope you see this message and answer to me. Greetings from colombia!

[@pratikanand2200]

hello , I am also working on darrieus turbine so have you completed that how to simulate in fluent

[@FarhanKhan-hr5zj]

Respected Sir, I have a question here ! can you please help me out ? because my MS thesis is on such turbine. I will be very thankful

[@Auge2oo9]

Hey there! I really like this project and wanted to create it myself. I don't really understand, why you always create two interfaces on the mesh. Can you explain, what the difference between interface a and b is, please? Greetings :)

[@MechanicalSpoon]

Greetings, I remember doing int a and int b on the inner and outer circles of each component that wants to rotate around itself, like the turbine blades. I'm not sure why though, I saw it done in other tutorials involving rotation of turbine blades.

[@fenilmodi2923]

HI Mechenicalspoon, you have done good job. I am in M. tech. and I have selected the same project topic. i made 3D mesh in ICEM CFD and give the same boundary condition except water. but i don't know why I can't get the solution in fluent. can you please help me?

[@freefiregaminguk3710]

dear i need project for my m tech if you can help me to do it or share your report please i would really appreciate it.advance many thanks

[@fenilmodi2923]

@@freefiregaminguk3710 do you have a topic currently..?

[@freefiregaminguk3710]

Yes mate

[@parikshitghogare6212]

Such an awesome video, helped me a lot for my thesis. But I am unclear of the factor that you are multiplying with P7 in order to set the omega_turbine and the Time_Step_Size. Can you please tell how did you choose that multiplying factor. Thanks in advance.

[@kishore781]

how to create parameter omega_turbine in Fluent. Help me please

[@prasenjit8741]

MechanicalSpoon thanks for uploading the video its very useful to me. During 07:27-07:30 optimized turbine simulation example after the fixed blade simulation how you have rotated the blades individually that is pitching in FLUENT simulation. Waiting for your reply.

[@MechanicalSpoon]

+aditya singh there is an optimized angular velocity for each blade during each increment, so I changed the angular velocity of each blade manually at each increment. For fluid 3,4,5, in cell zone conditions, the speed (rad/s) is changed from zero to a certain value.

[@prasenjit8741]

+MechanicalSpoon Thank you for your quick reply. The optimization has been done manually by changing (rad/s), matching to get max Cm (Cm1 +Cm2 +Cm3) or by using any other optimization method for three blades rotating simultaneously.

[@calva94]

Hi Sir. Can you please tell me which are the geometries selected in edge sizing 3?

[@johnwick-uy3sf]

Can you provide Labview Code in description for this tutorial??

[@owlybookreviews8967]

hi , my project is to model the thermal behavior of shape memory alloy using ANSYSY can I write my model and equations using Matlab and then link it with ANSYS. If not , I found that it can be done using Fortran , do you have any idea how ? and thanks :)

[@venkateshkonar3505]

How many hours did it take for computation

[@kishore781]

how to create parameter omega_turbine in Fluent. Help me please

[@pawepieciul5438]

Hello! Why do You have 4 faces at 4:05? Your video is very helpfull with my diploma work, thanks a lot!

[@MechanicalSpoon]

+Paweł Pieciul there are 5 faces actually not 4. the fluid between the big rectangle and big circle, the fluid in each small circle, and the fluid between the small circles and the big circle. That should be 5 faces. Im happy you found it useful, make sure to read some other useful comments here

[@pawepieciul5438]

+MechanicalSpoon Thank You for response, but I was asking about those 4 faces in the Goemetry selection in the the Scope of Inflation Method. I've thought that only the smallest circles should be selected. Is this even make a difference? I started using Fluent yesterday and I'm doing a lot by guess :D

[@MechanicalSpoon]

+Paweł Pieciul oh my bad, your right it should be 3 faces for the inflation. I never noticed that :P But ya it makes no difference on the mesh.

[@gebreelabdalrahman3990]

Thank you, very good tutorial, but I have some questions: 1. How did you specify the element size in both edge and face sizing? 2. In Fluent setup, you set a moment monitor for 3 blades, but when you called moment Cm results from text file, Which should contain 3 columns for Cm results, into excel file, the text file were only contain one column for Cm results. did you recalculate the cm results before importing into excel? 3. Is the Matlab code, which you used to plot Cp vs TSR, applied to calculate Cp or torque ( line 4 in the code)?

[@MechanicalSpoon]

+Gebreel Abdalrahman 1. Concerning the mesh, I think it's better to only do edge sizing 2. When you select blade 1, 2, 3, the it writes the total sum of the moments on the three blades, so it gives only 1 column. 3. it is used to find Cp

[@MechanicalSpoon]

+Gebreel Abdalrahman Apparently Cm is coefficient of Moment. I found out just recently from a forum when helping a friend; Cm is not the moment. So to find Cp curve, it is: Cp = Cm * TSR If you want to find the moment, there is an equation for Cm related to it. (you can find it online) but if you only care about Cp, I think you just need Cm

[@gebreelabdalrahman3990]

+MechanicalSpoon Tank you, actually, I've used Cp = Cm * TSR, and Cp=T*omega/(0.5*rho*A*V^3), where Cm,avg=average(cm1+cm2+cm3)/N and T=Cm,avg*0.5*rho*A*V^2, but the results were slightly different. Could you please contact me? [e-mail]

[@kishore781]

how to create parameter omega_turbine in Fluent. Help me please

[@UrbanZakapa01]

why we not use air as the materials, why use H20? Isn't this for wind turbine?

[@gabrielalejandropandiellar8746]

+UrbanZakapa01 Because air and water are fluids that behave very similar at typical conditions. Also it's easier to calculate when the density of the fluid is greater. Air density = 1.225 kg/m^3 VS Water density = 1 000 kg/m^3. No compitition.

[@MechTechSimulations]

Yes, I too observed that !!??

[@kishore781]

Can you please share UDF for omega_turbine. thank you

[@fruitydarksideofthemoon]

Please, what are the reference values you use? I obtain so high cm and I think I have a problem with reference values. In a 2D simulation like this, shouldn't be Depth = 1 m; Length = R (Rotor Radius); Area = 2Rh (2*Rotor Radius*Depth) = 2R ?

[@MechanicalSpoon]

+Fruity Moon yes those should be the reference values, i used length = 1m, Rotor Radius=0.4m, Area=0.8m I picked these values based on the radius of the turbine which was 0.2m.

[@fruitydarksideofthemoon]

+MechanicalSpoon Thanks! I found my failure and It was the most silly thing in the world: when I exported the Cm data to Excel, I didn't remember my european version of Excel had a point to separate miles instead of a comma. The program multiplied by 1000 all my Cm values LOL. Thanks for uploading this video and answering so many questions, It is a great job and so useful!!

[@ROHITKUMAR-mv8yx]

daam u r very good

[@owlybookreviews8967]

amazing job !!!!! as I could understand from this video is that the simulation shown in 7:20 is the result of the work made from the beginning, right ?? I made approximately the same thing with a Savinous model but I made the geometry directly on ANSYS but I think that my turbine is fixed and that's my problem , I want it to be a moving one, what should I change to solve it?? I'll be waiting for your help , thanks

[@MechanicalSpoon]

+asma BKH Thanks alot; if you want the turbine to move (rotate) you need to make the setup transient. If you pause the video a bit, you can see details of how the setup should be to make it move (you need to do things like copy to mesh motion, set the time step size and number of time steps and maybe other things)

[@owlybookreviews8967]

so all the steps are made in the ansys , it has nothing o do with the geometry made in CATIA ???

[@ahmeddarwish4584]

Magic!!

[@saisreedhar9431]

How did u manufacture the airfoil blades?

[@playspirit]

how do you give motion to the blade that is not the same thorugout the rotation of the turbine

[@pratikanand2200]

have you able to cal. rpm at various speed

[@playspirit]

hey can help me with the simulation? I am not able to get my interface right ! need help ?

[@haveanicetime]

+Vidur Vij type VAWT sliding mesh and watch the 2 hours tutorial.

[@MechTechSimulations]

You have to leave a small gap in order to create the interface

[@kashifnaseem220]

what is omega turbine? is it some sort of code to calculate the relative blade velocity?

[@MechanicalSpoon]

+Kashif Naseem omega turbine for fluid 2 is the input parameter used so i can change the turbine velocity and create multiple cases; TSR = omega turbine * turbine radius / fluid velocity In this case, fluid velocity is kept constant at 0.16 m/s, and turbine radius is also constant at 0.2 m

[@kashifnaseem220]

+MechanicalSpoon thank you for the quick reply. Yes, I actually got that as the video progressed. One question, the value of the time step size in the parameters, how did you divide the specific numeric by TSR? how did you get that specific number? currently i have FYP presentation tomorrow, and i was hoping to get the net torque of a darrieus VAWT from the moments, do you have any idea how can i go about doing that? Thank you once again. Looking forward to your reply.

[@MechanicalSpoon]

+Kashif Naseem Time(t) = Number of Time Steps(N) x Time Step Size(T) Omega Turbine(w) = Distance(d) / Time(t) TSR = Omega Turbine(w) x Turbine Radius(r) / Fluid Velocity(V) You can use these equations to get w= TSR*V/r and T= d*r/TSR*V*N where in this case d= 360*3 = 1080 degrees; N = 1080 steps; r = 0.2 m; V = 0.16 m/s I wanted the turbine to rotate three revolutions, that's why it is 360*3 As for the net torque at each time step, i used a moment output parameter on the three blades (you select blade 1, 2, 3 and check the "write" box as seen in the video, this gives you that total moment at each time step) The moments are written in a file and you can plot them in excel or matlab, or use them for something. Hope this helps, good luck in your presentation.

[@kashifnaseem220]

+MechanicalSpoon oh that clears alot! I have run the simulation but I am sorta not satisfied, cuz one last thing is bothering me, if you would clear it out, i would along with many others here would highly appreciate it. when you set fluid 3, 4 and 5 relative to fluid 2, you keyed in some Rotation-Axis Origin (Relative) x and y co-ordinates. like for fluid 3 and blade 1 its x = 0, y = 0.1, for fluid 4 and blade 2 its x = -0.08660 and y = -0.05... from where are you establishing such co-ordinates? I could only guess but I am not sure. sorry for spamming questions after questions, looking forward to your reply. and thanks for the good luck :D

[@MechanicalSpoon]

+Kashif Naseem those co-ordinates are from the center of the turbine, or the axis of rotation (x=0,y=0). Blade 2 (which is fluid 4) for example has these co-ordinates: x=-0.1cos(30) y=-0.1sin(30) [there is 120 degrees between each blade] Btw the turbine radius here is 0.1 m not 0.2, my bad. I don't mind the questions.

[@ajinkya843]

can u make video for radial turbine?

[@mahmoudiabdelmoumin6746]

Hey I also look for horizontal wind turbine If I have any new for this I will contact you YOU can contact me face book (khaled mahmoudi) Researchgate (Abd Elmoumin KHALED Mahmoudi)

[@shahyangarshasbi1674]

How to run macros on catia?

[@陈耀然]

Hi bro, very nice video! I wanna ask whether fai-type(not straight blade) Darrieus wind turbine can be calculated using ANSYS? Does the computation cost too large?

[@dimasakhmads]

Can i hve your excel ?

[@playspirit]

how do you optimize the rotation of blades on there own axis?

[@MechanicalSpoon]

+Vidur Vij you make a parametric study, take multiple cases with multiple blade velocities, then compare that output moment and choose the case with maximum moment

[@playspirit]

+MechanicalSpoon I am not able to achieve the desired results. Can you please help me troubleshoot ! I can send you my project files!

[@krishnakapoor9409]

jiyo mere lal!!!

[@kelompokstudienergi]

sir can i have your excel ?

[@sathiyamoorthyk8326]

I have done the same. Thanks for triggering me..

[@coreymcniel3390]

You need to make some changes. Check Avasva Solutions if you want to make it right.

[@justtinkering6713]

Why do you have such annoying music?