Answer Happy

The definition of the velocity boundary layer is: O The region of the flow where the fluid is moving. O The region of the flow where the fluid velocity has been affected by the presence of a surface O The region of the flow where the fluid temperature has been affected by the presence of a surface. All of the above
As the thermal boundary layer thickness increases, the convective heat transfer coefficient will: Decrease Increase O Remain constant O Go to infinity
Indicate which one of the following statements is true for external convection over a flat isothermal plate, The local heat transfer coefficient (h) increases and the local Nusselt number (Nu) decreases as x increases. O The local heat transfer coefficient (h) increases and the local Nusselt number (Nu) increases as x increases. The local heat transfer coefficient (h) decreases and the local Nusselt number (Nu) decreases as x increases. O The local heat transfer coefficient (h) decreases and the local Nusselt number (Nu) increases as x increases.