NFX CFD
Overview
This video covers conjugate heat transfer by analyzing thermal energy exchange between hot exhaust gas and cooling water across a solid metal wall without mixing the two fluids.
Conjugate Heat Transfer Workflow :
• Region & Material Setup
Three regions are defined for the hot exhaust gas, cooling water, and metal wall separating them. The mesh is properly connected at each interface so flow and heat transfer can be transferred across region boundaries.
• Boundary Conditions
Inlet flow conditions are applied to the hot exhaust gas and cooling water. A convection condition on the outer shell accounts for heat loss to the surrounding ambient air.
• Temperature & Cooling Performance Analysis
The results include flow fields, temperature distributions across various cross-sections, and monitored outlet values for both the exhaust gas and coolant. These results are used to quantify heat exchange between the two fluids and evaluate cooling performance.
The video demonstrates how fluid-to-fluid and fluid-to-solid heat transfer can be modeled simultaneously and how cooling performance can be examined from the simulation results.
Download Example Files
Conjugate Heat Transfer Workflow :
• Region & Material Setup
Three regions are defined for the hot exhaust gas, cooling water, and metal wall separating them. The mesh is properly connected at each interface so flow and heat transfer can be transferred across region boundaries.
• Boundary Conditions
Inlet flow conditions are applied to the hot exhaust gas and cooling water. A convection condition on the outer shell accounts for heat loss to the surrounding ambient air.
• Temperature & Cooling Performance Analysis
The results include flow fields, temperature distributions across various cross-sections, and monitored outlet values for both the exhaust gas and coolant. These results are used to quantify heat exchange between the two fluids and evaluate cooling performance.
The video demonstrates how fluid-to-fluid and fluid-to-solid heat transfer can be modeled simultaneously and how cooling performance can be examined from the simulation results.