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No conjugate heat transfer between solid (cast iron) and fluid (water)

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Old   August 21, 2018, 21:00
Default No conjugate heat transfer between solid (cast iron) and fluid (water)
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Hello guys,
I am working on conjugate heat transfer problem in fluent. In my problem i have one solid zone (cast iron) and one fluid zone (water). cold water flowing inside to the solid part (like water flowing in a pipe). water is used to cool the solid part. I have created coupled interface (wall and wall shadow) between solid and fluid zone. The solution converged but there is no conjugate heat transfer occurs. I tried this problem many time with all possible way. please help me with this.

Boundary condition:
water inlet velocity = 2 m/s
water inlet temp = 303K
outlet pressure = 2.5bar
solid part temperature = 453K (I dont have h and heat flux value)

1. how to set thermal boundary condition if i only know solid temperature?
2. solution converged but no conjugate heat transfer taking place?

Thanks in advance...Its urgent please help me with this guys.
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Old   August 23, 2018, 13:01
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Lucky Tran
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The thermal boundary condition at wall and wall shadow should be coupled and not a temperature or heat flux. The momentum BC is no-slip.
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