You are an absolute G for this one. Mic quality: COD lobby. Explainations: God teir. Thank you for this epic video now i can finally solve for areodynamics of a cow with my $1000 dollar peice of software
Overall great to see helping others get up to speed on CFD. Be careful with assigning Compressible on the Solve dialog - Given that you've assigned your fluid as Air[Fixed] we are not taking compressibility effects in to account. And given that this is a small RC plane at 40mph for many design aspects we could assume it negligible and just run Incompressible. We do have a great outline for doing external compressible air flow in the Help , accessible from the Start&Learn tab, which can also outline meshing best practices. Otherwise nice walk through and keep up the work
Great tutorial, only thing is that for accurate results, you shouldn't just run a set number of iterations, you should keep running iterations until all of the lines are flat (converged), otherwise you will get inaccurate results, but on the whole, great tutorial, without it I wouldn't know how to use cfd, which helped me and my team a lot in f1 in schools.
I have been struggling to load the files into cfd. Every time I upload the file at the start it takes more than 30 minutes just to load something. Is there something I’m doing wrong?
Hi, Nice tutorial. I'm using Solidworks to import my model into Autodesk CFD. The box does not turn into an outline when the option is selected. It still remains as a solid. I tried this both ways by importing as a STEP file and the ASSY file. Any suggestions? Thanks
A question: should i use the shell command in constructing the box or just a solid body? I've seen a user raised this concern in the comments but apparently your comment is hidden/not shown... Thanks for the great video though!
Thanks for this tutorial. It was really helpful. But I got a problem. I have done this with an airfoil instead of a whole airplane and I get 30 kN (400 iterations, 18 mph), but you only get 2.5 N. Why does this happen?
@@TheKillerTutorials - YOu may want to check out the webinar that Autodesk CFD support did on NACA benchmarking ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-N4z8HcBtL6U.html
I love your video ! thank you so much ! but im having this weird problem on a simulation of a sleek drone chassis I put together , the forces are just... not realistic with lift (without any airfoils on an almost 10 cm long model) reaching 10^11 N , the flow pattern is also pretty wonky, any ideas ?
@@Shasty8817 damn that was a fast response ! I figured it out actually, apparently It was starting after the iterations ? ya I have no idea why or how but setting it to start from 0 completely fixed it
Hello, could you make a video about creating the boundaries/box. I made one, and I made is as a "new body" and when I import to CFD, I only have the box. I also export as a .step, but my model just isn't inside when I try to simulate. Could you help me? Thank you!
I am testing an rc plane but it has only 2.2N of lift at 20km/h but my plane weights 2kg will it fly at that speed please? help me out Also I have a motor that can generate 5kg of thurst how can I add that to my CFD test? One more question How can I turn thrust value to air speed? Thank you all in advance.
Hi, I'm not sure why all my comments got deleted, but you should just be able to extrude a box in Fusion 360, by just creating a new component (It needs to be its own separate component!). Set its dimensions and position carefully, it will become the wind tunnel (at least that's what you should select).
I ran a test for a small car I'm designing and the results showed forces or roughly expected magnitudes but the resultant forces showed as negative. Have I made an error or can the negative sign be ignored?
Hello, I was wondering how this plane only had 2.5 N of drag (or FZ), or less than 1/4 of a kg of upward force. Is the simulator 1) calling FZ, something different than the upward force or 2) taking the weight of the plane into account? Could someone please clarify this for me ? Thanks
@@Shasty8817 I'm pretending to simulate how the chine influence in the flight for different angles of attack and speed (cruise, take off and landing) and maybe for different altitude (air density). I think it's a very complicated process and I don't know exactly how to start. I want check mainly the lift and drag increase for those different scenarios.
@@Shasty8817 Thank you... This is what went wrong... I was making a fairly basic version of a windmill,so as with other initial designs I used form tool to extrude line components instead of profiles (hence creating bodies without thickness)... That is why it was not exported to Autodesk CFD
