Computational Fluid Dynamics

Build fluid models without hiding the formulation or backend.

Configure incompressible, turbulent, multiphase, overset, thermal, compressible, and fluid-structure interaction workflows through the same geometry, mesh, condition, solver, result, and journal contract used across TorsoCAE.

Flow Models

Laminar, DGFV, VOF, and RANS

Use FEM or conservative DGFV incompressible flow, two-phase VOF transport, or DGFV k-epsilon and k-omega SST RANS with explicit properties and boundary conditions.

Coupling

Thermal transport and FSI

True CHT exchanges interface temperature and heat flux between separate fluid and solid domains; FSI couples fluid and structural motion.

Backends

DOLFINx and MFEM paths

Common laminar, DGFV RANS, VOF, and shared DGFV compressible paths support DOLFINx and MFEM. DOLFINx also provides the current user-facing overset workflow.

Model Contract

Flow physics stays separate from numerical execution.

Fluid properties, boundary conditions, turbulence controls, and coupling intent describe the model. Backend, parallelism, algorithms, and tolerances describe how that model is executed.

CAD-bound flow conditions Wall or no-slip, inlet velocity, outlet pressure, and symmetry or slip conditions stay attached to CAD surfaces. Each generated mesh receives the corresponding boundary tags without rebuilding the flow setup.
SST turbulence state The k-omega SST path advances velocity, pressure, turbulent kinetic energy, specific dissipation rate, and eddy viscosity.
Conservative DGFV and VOF Polynomial order zero provides the classical staggered finite-volume limit; higher orders add DG accuracy. Two-phase runs add bounded volume fraction, mixture density, and gravity-driven transport.
Compressible path Shared DGFV compressible Euler runs on DOLFINx or MFEM with far-field, inlet, outlet, wall, and symmetry fluxes; MFEM also retains its FEM-DG path.
Overset rotating meshes Couple one stationary background mesh to one rigidly rotating component through explicit fringe surfaces and an overset interface.
Post-processing Inspect velocity, pressure, turbulence, thermal, and coupled fields through the generic result and time-frame pipeline.

From fluid domain to resolved fields.

Each setup remains visible in the UI and reproducible through the generated journal.

01 DomainPrepare the fluid and any coupled solid regions.
02 MeshResolve walls, wakes, gradients, and interfaces.
03 PhysicsSelect flow, turbulence, thermal, or FSI model.
04 ConditionsAssign properties, inlets, outlets, and walls.
05 InspectReview velocity, pressure, thermal, and coupled fields.
6 published CFD benchmarks

Review CFD verification and validation evidence.

Review lid-driven cavity, vortex shedding, backward-facing-step SST, Poiseuille flow, Stokes sphere drag, and VOF dam-break response against established references, including measured quantities, domain and mesh caveats, raw result data, and downloadable journals.

Review benchmark portfolio