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.
Budget: ₹600 – ₹1,500 INR
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
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