I have a problem statement: “ A closed tube, water bubble into it, what happens to its droplet dynamics if we vary internal pressure conditions in a fixed temp.” how to approach and model this using ANSYS Fluent. Can anyone suggest tutorial video or help me with the CFD modelling approach?
I'm trying to create an analysis on hull of a boat. When i try to pull it created multiple bodies instead of 1 body for the water. How do I rectify this.
I have a 2D pipe with pressure-driven flow. Inside the pipe there is a fluid blob of the same density as of semi molten metal but with infinite viscosity.
My objective is to observe how the surrounding metal flows past the blob and how the blob deforms under pressure.
The blob boundary should behave similar to a no-slip interface, while the pipe wall can be treated as a slip if required.
It is needed to be done in ANSYS FLUENT.
Any suggestions, example cases, or Fluent setup recommendations would be greatly appreciated.
Thank you!
Hi, I am a student working on a side project, wanting to run a CFD simulation on various game objects like Rocket League cars or something. I was able to extract the car geometry from the game, save as a STL file and import to workbench but it is impossible to get a mesh from it. I have tried shrink-wrapping, scaling up and down, remeshing the car in blender to get rid of any holes, and using the auto-fix button on Discovery. I don't know much about meshing complex geometries and its hard to find any resources that start from a STL not a CAD file.
I think it may be a scaling issue that the car is imported too small (~300mm) but I am not sure.
I was able to successfully make my own very basic car model in solidworks and run simulations with that, but the uniqueness of this project is the rocket league model, so I want that to work.
Any insight would be appreciated.
As the display , geometry is not shown. What could be the issue?
I'm new, just starting my first project in workbench 2025 R2. I installed the student version free from the website. The geometry is .step file. If any other information is needed, you can ask.
Hello Guys, I am a Mechanical Engineer currently working on CFD projects.
I recently completed a Computational Fluid Dynamics (CFD) project of a client focused on the design optimization of a Shell-and-Tube Heat Exchanger using ANSYS Fluent.
🔹 Project Objective To improve heat exchanger thermal performance through progressive design modifications and validate CFD results against theoretical calculations based on the LMTD (Log Mean Temperature Difference) method.
🔹 Design Evolution
✅ Design 1: Basic Double-Pipe Heat Exchanger
✅ Design 2: Added Tube Headers, End Plates, and Flow Management Components
✅ Design 3: Introduced Baffles to Enhance Cross-Flow and Improve Heat Transfer
✅ Design 4: Replaced Single Tube with a 5-Tube Bundle while Maintaining Equivalent Flow Area• Increased heat transfer surface area by approximately 123%
✅ Design 5 (Final Optimized Design):• 5-Tube Bundle• 8 Internal Baffles• ~2.84 Million Computational Cells• SST k-ε Realizable Turbulence Model• Complete CFD Validation Against Analytical Calculations
🔹 Pre-Simulation Engineering Calculations
Using the LMTD method, the operating conditions were determined as:
• Shell-side Velocity: 0.00658 m/s• Tube-side Velocity: 0.01492 m/s
These values were then used as boundary conditions for CFD simulations and validation.
📊 Validation Design 5 produced the closest agreement with theoretical predictions:
• Shell Outlet Temperature: 387 K(Target: 350 K | Error: 10.6%)
• Tube Outlet Temperature: 382 K(Target: 400 K | Error: 4.4%)
Compared to Design 1, the shell-side prediction error was reduced from nearly 29% to 10.6%, demonstrating the effectiveness of the design optimization process.
🔹 Verification A mesh independence study was conducted using coarse, medium, and fine meshes. Temperature variation between medium and fine meshes remained below 0.01%, confirming numerical reliability and solution stability.
This project was a great exercise in combining:✔ Heat Transfer Theory✔ CFD Simulation✔ Design Optimization✔ Numerical Validation✔ Engineering Problem Solving
If you want to learn more about the project or get the hands on guidance on the project for Free, do let me know in my dm. Thanks