Question
A hot steel spherical ball is suddenly dipped into a low temperature oil bath. Which of the following dimensionless parameters are required to determine instantaneous center temperature of the ball using a Heisler chart
Options :
Biot number and Fourier number
Reynolds number and Prandtl number
Biot number and Froude number
Nusselt number and Grashoff number
Answer :
Biot number and Fourier number
Solution :
In case of Hisler chart,
So, Blot number and Fourler number are required to determine instantaneous centre temperature of the ball.
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