Question:-
In respect of free convection over a vertical flat plate the busselt number varies with Grashof number ‘Gr’ as
Option (A)
Gr and Gr1/4 for laminar and turbulent flows respectively
Option (B)
Gr1/2 and Gr1/3 for laminar and turbulent flows respectively
Option(C)
Gr1/4 and Gr1/3 for laminar and turbulent flows respectively
Option(D)
Gr1/3 and Gr1/4 for laminar and turbulent
Correct Option:
(C)
Question Solution:
Nu = 0.53(GrPr)1/4 - Laminar 104 £ GrPr £ 109
= 0.13(GrPr)1/3 - Turbulent 109 £ GrPr £ 1012
question-answer-faq-6088