1.

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?

A. Nusselt number and Grashoff number
B. Reynolds number and Prandtl number
C. Biot number and Froude number
D. Biot number and Fourier number
Answer» E.


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