The assumptions for thermal boundary layer are(i) Steady compressible flow(ii) Negligible body forces, viscous heating and conduction in the flow direction(iii) Constant fluid properties evaluated at the film temperatureIdentify the correct option

The assumptions for thermal boundary layer are(i) Steady compressible

1.	The assumptions for thermal boundary layer are(i) Steady compressible flow(ii) Negligible body forces, viscous heating and conduction in the flow direction(iii) Constant fluid properties evaluated at the film temperatureIdentify the correct option
A.	1 and 3
B.	1, 2 and 3
C.	2 and 3
D.	1 and 2
Answer» D. 1 and 2

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The assumptions for thermal boundary layer are(i) Steady compressible flow(ii) Negligible body forces, viscous heating and conduction in the flow direction(iii) Constant fluid properties evaluated at the film temperatureIdentify the correct option

The assumptions for thermal boundary layer are(i) Steady compressible flow(ii) Negligible body forces, viscous heating and conduction in the flow direction(iii) Constant fluid properties evaluated at the film temperatureIdentify the correct option

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