Heat Transfer L16 p2 - Example - Sphere - Transient Convection - Heisler Chart 

Sir, At 2:47, While calculating fourier number, radius of sphere is used. But, the characteristic length of sphere should be used according to fourier formula which is one third of radius. I am confused??

Characteristics dimension should have been used which is R/3. But I guess Ro was the characters dimension in this video

Thank you Professor!!!!!!!!!! Awesome!!!!!!

that was a great explanation, thank you so much, sir.

Thanks very good explanation!!!!!