The objective is to simulate the mixing of cementitious material and a liquid accelerator inside a rotating mixer using ANSYS Fluent and quantify the mixing performance.
INR 600–1500
About the project
The freelancer should: Import or create the 3D geometry (I can provide the CAD model in STEP/IGES format). Create a high-quality computational mesh. Model the rotating impeller using either: Multiple Reference Frame (MRF), or Sliding Mesh (preferred if justified). Define two inlets: Main concrete stream Accelerator injection stream Use Species Transport (or an equivalent tracer approach) to evaluate mixing. Simulate the flow until a stable solution is obtained. Calculate the mixing performance at the outlet. Provide contour plots, velocity vectors, pressure distribution, species concentration, streamlines, and residence time where appropriate. Calculate and explain the Mixing Index (or Coefficient of Variation) using published methods. Recommend improvements in the injection location or mixer design if identified. Fluid Properties The main fluid represents printable concrete and should be modeled as a non-Newtonian fluid (Bingham or Herschel–Bulkley model). Rheological parameters will be provided. The accelerator can initially be treated as a passive scalar or second species. Deliverables The final deliverables should include: Complete ANSYS Fluent project files (.cas and .dat). Geometry and mesh files. Fluent setup details. All boundary conditions. Post-processing files. Mixing Index calculation procedure. A concise technical report explaining: Methodology Assumptions Results Discussion Recommendations Required Experience Please apply only if you have experience with: ANSYS Fluent Rotating machinery (MRF or Sliding Mesh) Species Transport Mixing tanks or dynamic mixers Non-Newtonian fluids Published CFD work in mixing systems Please include examples of similar CFD projects or publications you have completed. Timeline Preferred completion: 2 weeks Proposal Requirements When applying, please include: Similar Fluent projects completed. Your proposed simulation methodology. Estimated timeline. Fixed project price. Any questions about the geometry or operating conditions before starting
Skills required
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