# Angular velocity rad/s **URL:** \ **Category:** Fluid Flow / CFD\ **Created:** [September 28, 2019, 11:51am UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414 "2019-09-28T11:51:10Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![100067555](https://www.simscale.com/forum/letter_avatar/100067555/32/5_5575768a8748004e209b776fc1b2916d.png) [@100067555](https://www.simscale.com/forum/u/100067555)\ **Post date:** [September 28, 2019, 11:51am UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/1 "2019-09-28T11:51:10Z")
How do I obtain the rotational velocity of my wind turbine? For example, I want to find the angular velocity of my design at wind speed of 5m/s. Can simscale do this? ---
**Author:** ![DaleKramer](https://www.simscale.com/forum/user_avatar/www.simscale.com/dalekramer/32/20201_2.png) [@DaleKramer](https://www.simscale.com/forum/u/DaleKramer)\ **Post date:** [September 28, 2019, 12:34pm UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/2 "2019-09-28T12:34:20Z")
Yes it can be done but it is not a simple task… Check out [SimScale](https://www.simscale.com/projects/1318980/wind_turbine_optimisation_-geometric_improvements-/) ---
**Author:** ![100067555](https://www.simscale.com/forum/letter_avatar/100067555/32/5_5575768a8748004e209b776fc1b2916d.png) [@100067555](https://www.simscale.com/forum/u/100067555)\ **Post date:** [September 28, 2019, 12:59pm UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/3 "2019-09-28T12:59:14Z")
There are a lot of simulations inside this link , may i know which specific one can solve my doubts? ---
**Author:** ![DaleKramer](https://www.simscale.com/forum/user_avatar/www.simscale.com/dalekramer/32/20201_2.png) [@DaleKramer](https://www.simscale.com/forum/u/DaleKramer)\ **Post date:** [September 28, 2019, 1:03pm UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/4 "2019-09-28T13:03:18Z")
The link (points to 1 project) was to show you that your question is extremely broad and the answer is yes with a lot of work, even more than is in that project… (and with the caveat that all CFD results are just guesses and they need to be validated in real life). I suggest, you start by creating a precise CAD geometry file and then create a SimScale project which we can comment on. ---
**Author:** ![tedmund](https://www.simscale.com/forum/letter_avatar/tedmund/32/5_5575768a8748004e209b776fc1b2916d.png) [@tedmund](https://www.simscale.com/forum/u/tedmund)\ **Post date:** [September 28, 2019, 1:19pm UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/6 "2019-09-28T13:19:54Z")
> **[SimScale Login](https://www.simscale.com/workbench/?pid=3804520188109746522&%3Bmi=spec%3Ab83705b3-52ed-4ea5-a8c4-532bd2daaf90%2Cservice%3ASIMULATION%2Cstrategy%3A1%2Crun%3A4&%3Bps=analysis%2FIncompressible--oneOf%2FadvancedConcepts%2FrotatingZones%2F0)** > > Log in to your SimScale account. SimScale makes high-fidelity engineering simulation technically and economically accessible. At any scale. In the cloud. For example this project. I dont know the rotational velocity of my turbine at wind speed of 5m/s. But through some theoretical calculation ( conservation of energy) , i get 3.867 rad/s. Can I just use this angular velocity and continue with my simulation? Since it is too complicated to get the angular velocity from simulation?? ---
**Author:** ![DaleKramer](https://www.simscale.com/forum/user_avatar/www.simscale.com/dalekramer/32/20201_2.png) [@DaleKramer](https://www.simscale.com/forum/u/DaleKramer)\ **Post date:** [September 28, 2019, 1:31pm UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/7 "2019-09-28T13:31:28Z")
I am just guessing here, others can chime in with more specific knowledge. You may have to simulate it inside an MRF where you iteratively set the MRF rotational speed. I am not sure that method actually works and there may be a simpler way… But I am sure that getting a good estimate of the rotational velocity while drawing a certain amount of power out of the turbine shaft is achievable, lets see what others suggest here… ---
**Author:** ![jousefm](https://www.simscale.com/forum/user_avatar/www.simscale.com/jousefm/32/34908_2.png) [@jousefm](https://www.simscale.com/forum/u/jousefm)\ **Post date:** [September 28, 2019, 5:40pm UTC](https://www.simscale.com/forum/t/angular-velocity-rad-s/86414/8 "2019-09-28T17:40:11Z")
Very good question @100067555! I have answered a question related to power, torque and angular velocity in the past: **[Torque and speed from rotating turbine? - #2 by jousefm](https://www.simscale.com/forum/t/torque-and-speed-from-rotating-turbine/56383/2)** - however there the angular was an input variable and not the output of our investigations. I would assume that there is a way but would have to do a bit of research and I am not quite sure if some “module” is missing. @1318980, did you give simulations like these already a try? Best, Jousef