Hello, CFD Enthusiasts and Aspirants, I have a plan to collect real-time CFD interview questions here to help you land your dream job (I'm also searching for a job). You can post your questions and answers here, which will definitely help someone with their job interview. The availability of CFD Q&A on blogs and other sources may be outdated. This platform will help us stay updated and learn how to answer questions logically.

Dear CFD enthusiast, I worked on the turbine problem, where I achieved my pressure drop vs flow rate curve, which is propositionally varying (fig. attached). When I simulate the fan, its performance curve shows that it is inversely proportional to the flow rate. I understand the foundations. But my question is how to calculate the fan performance curve (static pressure vs. flow rate). Regarding the radiator (now I'm working on it) fan, how do I calculate the static pressure measurement ( Ps= Pt-Pd) Ps- static pressure, Pt-total pressure, and Pd = dynamic pressure. Is it right way to calculate?. If I follow this approach, I end up with the same curve as the turbine curve. What did I miss here? If you have any reference documents for radiator fan simulation, please share them here. Thanks in advance.

Courant-Friedrichs-Lewy number: for heat transfer analysis, I want to fix value between 0.3-0.5. But, I facing difficulties during the simulation, I encountered divergence and diffusivity in my solution. I try to fix it, but it is hard to find the exact bug. Can anyone know it? Please let me explain.

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

I'm the field of CFD, when applying for a job, does having a portfolio showing your most impressive projects help in getting a job? Or would the recruiter not even bother in taking a look at it?