To anyone looking for more documentation, have a look at my instructables page: www.instructables.com/Subsonic-Wind-Tunnel/ . Otherwise, contact me at jamespkwadhwani@gmail.com. Thanks for watching!
Thank you so much for sharing. I’m making an air tunnel for a class I’m taking right now and this was able to help me figure out something I wasn’t able to before. Great work man keep it up!
Thanks man, a friend of mine and I are also building a windtunnel for measuring drag and lift on cars. It is also a high school project, but compared to you pretty primitive :P. Thanks for showing us the lift measuring device. That gave us some pretty good inspiration. Keep up the good work man!
Quite impressive you built this in only two weeks. What about adding advanced visualization techniques like pressure sensitive paint, IR thermography, and shadowgraph? Might not show much but create pretty pictures to impress people. Seems the tunnel overall fairly quiet, does it add much heat to the room after long duration of running?
Hey James, could you share some details on how you constructed the load arm? and is there an off the shelf sensor you used to input the data into the microcontroller?
This is great! I was wondering if you can explain the circuitry part and how I can get the measurements of lift and drag the way you did. What did you use and how did you put it together. It would really be great help I'm also working on a project and need help as soon as possible. Thanks
Hi, thank you very much for sharing this video. I'm currently working on an extended essay regarding angle of attack and lift. I was wondering if there were any sources/guidelines you followed to build this wind tunnel?
Hi Sunid, I referenced many sources throughout this build. Mainly however I referenced the "Coggan Low-Speed Wind Tunnel" by Andrew R. Coggan, and took much inspiration from his design.
is it too much you ask of you for contact info so i could get a list of materials?? This is very interesting and me and my best friend just out of high school as well are trying to build our own
hey im impressed with your design that this only took 2 weeks its really high quality so im just curious on what the code looks like for this design it would be much appreciated if you could share it thank you
I and another college student are currently building one for a school project. We are using the Bell-Mehta 5th degree polynomial as well for our inlet, but are having trouble finding materials to fit the curve we want. What materials did you use to ensure it was accurate?
Have a look at my instructables page: www.instructables.com/Subsonic-Wind-Tunnel/ Otherwise, feel free to email me with questions at jameskwadhwani@gmail.com
Hello! I am also in high school and my friend and I are planning one out. My question is how would you construct the contraction cone part with the curve going on two axes going narrower and curving in? Thank you for looking this over.
Hey there, I found the curve that I needed, then had a friend print out the curve on large sheets of paper that were to-scale. I then taped this to mat board and cut them out by hand. I did this four times, then taped and glued them together so they all curved inward. Good luck!
Have a look at my instructables page: www.instructables.com/Subsonic-Wind-Tunnel/ I don't have CAD files, but I do have instructions for building. Good luck
You could use cardboard or wood, use a smaller fan, and have a large contraction cone to draw in air. Additionally, you could use a 2d airfoil system that is attached to each wall of the test section. Good luck!
Hey, thank you for sharing such a great know and your build, we have one wind tunnel at our institute but the equipment is not working in it for data collection, could you just guide me how you used load cells for measuring the lift and other parameters and how you changed angle of attack, I know it's your design you can't share details, if you just guide me or any sources that I should follow for it it'll great and grateful to you. :) ..
Sorry for taking so long to respond. I used load cells to measure lift/drag and had a servo that changed angle of attack. Not sure how you would measure lift/drag without load cells
To anyone looking for more documentation, have a look at my instructables page: www.instructables.com/Subsonic-Wind-Tunnel/ . Otherwise, contact me at jamespkwadhwani@gmail.com.
Thanks for watching!
i’m in my senior yr looking for aerospace final projects. sos. this is beautiful; i could only wish 😢 great job man
Thanks brother, good luck with the projects!
Thank you so much for sharing. I’m making an air tunnel for a class I’m taking right now and this was able to help me figure out something I wasn’t able to before. Great work man keep it up!
Glad to help! Good luck!
Highschool proyect, I've would do this for college, great work!
Great homemade tunnel! Very impressive!
Nice job!
Thank you!
Thanks for the explanation of some of the details 👏 and for the whole video 👍
Thanks for watching!
Thanks man, a friend of mine and I are also building a windtunnel for measuring drag and lift on cars. It is also a high school project, but compared to you pretty primitive :P. Thanks for showing us the lift measuring device. That gave us some pretty good inspiration. Keep up the good work man!
Thanks!
This is amazing!
Quite impressive you built this in only two weeks. What about adding advanced visualization techniques like pressure sensitive paint, IR thermography, and shadowgraph? Might not show much but create pretty pictures to impress people. Seems the tunnel overall fairly quiet, does it add much heat to the room after long duration of running?
Not much heat is added to the room. Great ideas! Thanks for the view!
I’m just jealous of the floor cushion 😂 4:11
Hey James, could you share some details on how you constructed the load arm? and is there an off the shelf sensor you used to input the data into the microcontroller?
Feel free to email me at jamespkwadhwani@gmail.com. I’d be happy to help!
This is great! I was wondering if you can explain the circuitry part and how I can get the measurements of lift and drag the way you did. What did you use and how did you put it together. It would really be great help I'm also working on a project and need help as soon as possible. Thanks
you could try putting a humidifier module at the end of the funnel along with some leds to be able to see the wind, otherwise great vid :)
Great idea. I would definitely do flow vis next time I work on a tunnel. Thanks for waching!
Hi, thank you very much for sharing this video. I'm currently working on an extended essay regarding angle of attack and lift. I was wondering if there were any sources/guidelines you followed to build this wind tunnel?
Hi Sunid, I referenced many sources throughout this build. Mainly however I referenced the "Coggan Low-Speed Wind Tunnel" by Andrew R. Coggan, and took much inspiration from his design.
is it too much you ask of you for contact info so i could get a list of materials?? This is very interesting and me and my best friend just out of high school as well are trying to build our own
Contact me for questions at jamespkwadhwani@gmail.com. I’d be happy to help!
hey im impressed with your design that this only took 2 weeks its really high quality so im just curious on what the code looks like for this design it would be much appreciated if you could share it thank you
I and another college student are currently building one for a school project. We are using the Bell-Mehta 5th degree polynomial as well for our inlet, but are having trouble finding materials to fit the curve we want. What materials did you use to ensure it was accurate?
I used mat board. It’s like a thick paper that you can easily bend without breaking. Best of luck
This video is very useful however im just wondering what you used to let you see the lift and drag
Hi, do you have any documentation to build this? It would be a great help if you can share. Thanks
Have a look at my instructables page: www.instructables.com/Subsonic-Wind-Tunnel/
Otherwise, feel free to email me with questions at jameskwadhwani@gmail.com
Hello! I am also in high school and my friend and I are planning one out. My question is how would you construct the contraction cone part with the curve going on two axes going narrower and curving in? Thank you for looking this over.
Hey there,
I found the curve that I needed, then had a friend print out the curve on large sheets of paper that were to-scale. I then taped this to mat board and cut them out by hand. I did this four times, then taped and glued them together so they all curved inward. Good luck!
Good day bro, is there any CAD files that you can give us for more information about your wind tunnel.
Have a look at my instructables page: www.instructables.com/Subsonic-Wind-Tunnel/
I don't have CAD files, but I do have instructions for building. Good luck
You not getting the theoretical results might be due to the not matching Reynolds number. In any case that's a great project, thanks for sharing !
Thanks- I wanted to build a wind tunnel for flow visualisation. Any tips for making a smaller one?
You could use cardboard or wood, use a smaller fan, and have a large contraction cone to draw in air. Additionally, you could use a 2d airfoil system that is attached to each wall of the test section. Good luck!
he looks like a young version of dwayne johnson (when he still had hair) but with a slightly lighter skintone
What thickness is the wood?
Been a while…. Believe I used quarter inch plywood
man im in cc about to transfer just starting to do projects like this ;(
Did you publish the coefficients of your 5th degree polynomial?
I pulled the fifth degree polynomial from a document written by a couple guys named Bell and Mehta. You should be able to find this online.
Hey, thank you for sharing such a great know and your build, we have one wind tunnel at our institute but the equipment is not working in it for data collection, could you just guide me how you used load cells for measuring the lift and other parameters and how you changed angle of attack, I know it's your design you can't share details, if you just guide me or any sources that I should follow for it it'll great and grateful to you. :) ..
Sorry for taking so long to respond. I used load cells to measure lift/drag and had a servo that changed angle of attack. Not sure how you would measure lift/drag without load cells
Hey, what part of the build took the most time?
Definitely the wood construction
Could you share the arduino code?
I'm doing a high-school project with arduino wind tunnel
I hope that he makes that
how do you measure the results.
I used an arduino and load cells with hx711 amplifiers.
Can I get the code for the Arduino??
Check out my linked instructables or email me at jamespkwadhwani@gmail.com for more help.