have simulated a hydraulic jump. There is a difference in water and ambient(air)temperature and as such there is heat transfer across the water-air interface. I have used VOF model and Standard K-epsilon model for the simulation. Energy Model is activated. Radiation is not considered.
Is there any way to determine the total heat transfer rate across the water-air interface bounded between the two sections(vertical lines) as shown in figure below? Also, is there a way to determine heat flux across the same interface or average equivalent thermal conductivity or average heat transfer co-efficient at the interface.?
Also I tried to determine heat flux across a point at the interface in CFD post. But it was shown as "Undefined". While the heat flux at any point at solid boundary could be easily determined. Why?
Subham Pal, To determine the heat flux across a point at the interface, you can use the Report > Probe Data feature in Ansys Fluent or the Probe feature in CFD post. However, if you are using a VOF model, the heat flux at the interface may be undefined at some points. This is because the VOF interface is a sharp interface and the heat flux across a sharp interface is not defined.
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