Conjugate Heat Transfer (CHT)

Examples

Tom Marinaccio

SVP, Worldwide Engineering Services

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What is Conjugate Heat Transfer?

CHT (Conjugate Heat Transfer) refers to situations in which multiple modes

of heat transfer occur simultaneously.

– Simultaneous multiple heat transfer modes occur in almost all real-world

problems.

– In some cases, certain heat transfer modes can be neglected.

Conjugate Heat Transfer Mesh with Solid and Fluid

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Solid

Fluid

A Free Convection Test Modeled as CHT

Heater (200 oC) Aluminum Plate Isolation

Conjugate Heat Transfer Mesh

Solid Fluid

Sample Free (Natural) Convection Patterns

Comparison CHT Analysis and Measurement

Temperature pattern on Al Plate

Comparison CHT Analysis and Measurement

Cylinder Head Example: Conduction, Convection, Boiling

Predicted Wall Temperatures

Hot spots on

Exhaust

Valve Bridges

CHT Analysis of Vehicle and Engine

CHT Analysis of Vehicle and Engine

CHT Analysis of Vehicle and Engine

CHT Analysis of Vehicle and Engine

Thank You