OpenFOAM static-mixer simulation
An OpenFOAM-only CFD study of pressure loss, residence behaviour, and passive-scalar mixing in selected static-mixer geometries.
Software compatibility
Cases are prepared for the OpenCFD OpenFOAM v2606 distribution. No ANSYS Fluent, COMSOL, STAR-CCM+, or OpenFOAM Foundation v14 files are included.
Project definition
Problem statement
A static mixer improves composition uniformity through repeated splitting and rotation but adds pressure loss, and both measures depend on geometry, Reynolds number, scalar diffusivity, and sampling plane.
Project objectives
- Model selected empty-pipe and static-mixer geometries.
- Simulate incompressible flow and transport of a non-reacting passive scalar.
- Calculate pressure drop, mixing index, coefficient of variation, and residence proxies.
- Compare geometry and flow-rate cases under identical evaluation planes.
- Perform mesh, conservation, and scalar-balance checks.
System design
System modules
Geometry and mesh
Builds pipe, mixer elements, inlets, outlet, walls, refinement, and sampling planes.
Flow case
Solves the selected laminar or turbulent incompressible velocity and pressure field.
Scalar transport
Transports a bounded non-reacting scalar using documented diffusivity and inlet distributions.
Performance analysis
Calculates pressure loss, mixing uniformity, residence proxies, and axial development.
Design comparison
Applies common meshes, boundaries, planes, and uncertainty checks to alternative geometries.
Methodology
System workflow
- 01Run empty pipe
The reference case establishes pressure and unmixed scalar behaviour.
- 02Run mixer
A selected insert geometry is solved at the same inlet conditions.
- 03Check balances
Flow, scalar, residual, boundedness, and mesh results are reviewed.
- 04Measure mixing
Uniformity and pressure are calculated at fixed axial planes.
- 05Compare designs
Geometry and flow-rate cases are ranked on mixing and pressure tradeoffs.
Demonstration scenario
An empty pipe and two static-mixer geometries receive the same split scalar inlet. The study compares cross-section uniformity and pressure loss at fixed stations and shows which geometry provides the better documented tradeoff.
Engineering
Technical architecture
- Case format
- Native OpenCFD OpenFOAM v2606 flow and passive-scalar cases with scripted configuration.
- Physics
- Single-phase incompressible flow and non-reacting scalar transport.
- Mesh
- Element and wake refinement with quality and three-level sensitivity checks.
- Analysis
- Python plane-sampling, mixing-index, pressure-loss, and comparison scripts.
Testing
Evaluation
Evaluation measures
- Flow and scalar conservation
- Scalar boundedness and mixing-index repeatability
- Pressure-loss comparison with reference or empty-pipe values
- Mesh and scalar-diffusivity sensitivity
- Uniformity development along the mixer
- Runtime across geometries and flow rates
System boundaries
- Only OpenCFD OpenFOAM v2606 cases are delivered.
- The scalar is non-reacting and the first scope excludes reactions, multiphase flow, non-Newtonian behaviour, and particle solids.
- Residence measures are flow-based proxies unless a separate tracer calculation is included.
- The result is not a production mixer or pressure-equipment design.
Included
- 01Static-mixer geometry and mesh workflow
- 02OpenFOAM flow and passive-scalar case files
- 03Mixing index, pressure-loss, and residence scripts
- 04Prepared geometries, operating points, and results
- 05Complete source code in a private GitHub repository
- 06Complete project documentation with synopsis, abstract, methodology, mixer diagrams, mesh study, results, screenshots, and conclusion
- 07Setup and usage guide
Project record
No buyer information is collected on this page.
- Permanent project ID
- GP-CH-03AX73I
- Catalogued
- 22 Aug 2026
- Completed
- Pending
- Verified
- Pending
- Demonstration
- Added when ready
Handover
After purchase
- 01Payment is confirmed
The project is marked unavailable and cannot be purchased again.
- 02Repository access is granted
The buyer's submitted GitHub account receives access to the private repository.
- 03The purchase record is delivered
The certification sheet is prepared from the reviewed buyer details and sent privately by email.