User Defined Functions (UDFs) are amazing when it comes to defining motion to a boundary or setting complex boundary conditions or material properties. 💡 Coded in C language, UDFs give engineers the flexibility to add more complexity to the problems they are solving. 🔧 I wrote a UDF for a simple case of 2D airfoil simulation to get my hands dirty in the UDF domain of ANSYS Fluent. The UDF rotates the airfoil periodically by +/- 20 degrees, thus periodically varying its angle of attack. ✈️ Watch how the lift and drag forces vary with the motion of the airfoil in the video below. 📽️ https://youtu.be/duv2y70omEk

Hello, can someone give me a hand? I have to do a CFD analysis in Ansys Fluent of a rocket that we are going to manufacture for the student association I belong to. The problem is that the CAD file, as it is designed to be manufactured, has a lot of clearances and holes and when I import the geometry, put the enclosure and extract the geometry, as it has clearances the mesh gets into the gaps. Is there a simple way to change the CAD so that it only takes the outer surface (as if I put a cloth over the Rocket).

Does anyone know any book about odd even decoupling error in control volume method of solving? I would be grateful if you introduce a book that explains this topic. Thanks🙏

Hi everybody! Happy to have you all here and very excited to kick-start a long journey of mentorship and growth with all of you. To help get to know each other and break the shyness, take a moment to introduce yourself below and let others know what you're currently working on (CFD or in general). ** Please make sure you have carefully read this post and participated in this poll [takes 5 seconds] Let's go!