Flow simulation: Air problem around a rotating cylinder

Simulation Generality
1

 

Hello

I am a student in Terminale and I am currently working on a model aircraft project carried by wings and operating thanks to the Magnus effect, it is a question of having cylindrical wings rotating on themselves, the Magnus effect will then produce lift (see: http://goo.gl/XiDVa8).

I decided to highlight the Magnus effect and deduce a pressure difference that will allow us to establish the lift force using Flow Simulation.

But after many efforts, it is impossible to have a viable/not improbable result. To start with, I just represented the wing by a cylinder to simplify the calculations as much as possible. I then followed this method: https://goo.gl/26AMsr which consists of simulating the rotation of the part by a cylinder containing it.

I first encountered the following problem: impossible to do the calculations with the software, the rotating part was the same as the cylinder created to simulate the rotation, an error was displayed on the screen without any results.

By changing the diameter of the cylinder I was able to get results but again they were rather unlikely.

 

So I'm turning to you, I hope I've been clear enough, if you need any information ask me.

Thank you in advance.

2

Hello

I'm not an expert in simulation, but maybe SolidWorks isn't a good fit.

I nevertheless found a link while talking:

http://www.solidworks.com/sw/resources/football-tech.htm?scid=swexpress_0714_prospect_mainoffer_football-tech

It might be interesting to comment on the video for questions.

And someone else wonders:

https://grabcad.com/questions/how-to-simulate-magnus-effect-in-solidworks

Edit: for information in the video, he uses:

An expression for strength, more info here:

http://help.solidworks.com/2012/french/SolidWorks/motionstudies/HIDD_DVE_SIM_FORCE.htm

Edit 2:

Here is the formula used in the video (also available as an attachment):


fonction_magnus.jpg
1 Like
3

First of all, thank you for your answer,

I chose Solidworks because it's a software that I have in high school, that my teachers know how to use a minimum and that is used throughout the year. The goal of the project is to reuse what you learn during the year and apply it to a system in a relatively short time (that's why discovering a brand new software is quite tense, despite the fact that I had never used FlowSimulation).

I had already skimmed the two links you sent me.

Regarding the first link, you have to keep in mind that the use of Solidworks Flow simulation is for me a way to get around the mistake of taking a random formula to calculate the magnus effect and also to be able to modify the dimensions of my cylinder and to observe the modifications it has on the lift to do a dimensional analysis.

I can't really ask questions on the video, my problems are on Flow simulation.

Regarding the last link, I have already done what "rob" replied without any suitable results.

 

Do you have experience with Flow Simulation? If so, can you try to represent the path of the fluid around the rotating cylinder?