CFD TOPIC HUB · THERMAL & CHT
Thermal CFD and CHT: trace the complete heat path.
Use this hub for conjugate heat transfer, cooling, temperature prediction, thermal interfaces and energy-balance problems where conduction and convection must be interpreted together.
Start from the decision the CFD model has to support.
A temperature field is the result of a heat path. Credible thermal CFD should explain where heat enters, which resistances control it, how interfaces transmit it and where energy finally leaves the domain.
Use these checks before adding model complexity.
- Start from heat sources, sinks and a system-level energy balance.
- Treat material properties, contacts and coupled interfaces as explicit thermal resistances.
- Cross-check heat flux and temperature differences against an independent first-order estimate.
Already have a CFD model that behaves incorrectly?
Start from the symptom and follow the Technical Case diagnostic sequence before tuning unrelated solver controls.
Browse Technical Cases →Build the modelling decision from the underlying physics.
Use the guides for definitions, assumptions, workflow design and evidence requirements.
Conjugate Heat Transfer in STAR-CCM+
Fluid-solid coupling and interface workflow
Open resource →ENGINEERING GUIDECFD Verification vs Validation
Build numerical and physical evidence for a thermal result
Open resource →ENGINEERING GUIDEReport CFD Boundary Conditions & Properties
Make thermal inputs reproducible and reviewable
Open resource →Diagnose the failure mode when the solved model disagrees.
Technical Cases are organized around symptoms, likely causes, diagnostic order and controlled fixes.
CHT Temperature or Energy Balance Looks Wrong
Trace heat from source through solid and fluid
Open resource →TECHNICAL CASECHT Contact Resistance & Temperature Jump
Distinguish physical jumps from setup errors
Open resource →TECHNICAL CASECFD Converged but Results Look Wrong
Challenge a stable but thermally inconsistent solution
Open resource →Challenge the CFD with transparent engineering checks.
Independent calculations help reveal whether the problem is in the physics, inputs, numerical resolution or interpretation.
Heat Transfer Calculator
Cross-check convection, heat flux and sensible-energy scales
Open resource →ENGINEERING TOOLThermal / HVAC Workflow
Connect moist-air and thermal calculations
Open resource →ENGINEERING TOOLEngineering Tool Hub
Use additional thermal, HVAC and thermodynamics checks
Open resource →Continue with the same engineering context.
Move into structured training when you need the complete methodology, or engineering support when the answer depends on the actual project.
Connect adjacent modelling decisions.
Complex CFD problems often cross more than one topic cluster. Continue into the governing issue rather than searching by software menu alone.
Go deeper on the performance quantity or failure mode that controls the engineering decision.
This focused pair adds one engineering guide and one symptom-led Technical Case to the Thermal & CHT cluster.
CFD Heat Transfer Coefficient
Calculate and interpret h from wall heat flux, wall and reference temperatures, Nusselt number, averaging and CHT energy balance.
Read guide →TECHNICAL CASECFD Heat Transfer Coefficient Looks Wrong
Diagnose h or Nusselt disagreement from reference temperature, heat flux, averaging, wall treatment, mesh, properties and energy balance.
Open diagnostic case →