In my problem, inlet temperature =2°c

Cylinder wall temperature =35°c

Nozzle to cylinder distance =120 mm

Nozzle dia=30mm

Cylinder dia=35 mm

I need to plot a nusselt number vs Reynolds number chart for validation of my reference paper.

I could not calculate surface heat transfer coefficient to determine nusselt number over cylindrical surface.

Again how can i determine the angle of cylindrical wall from stagnation point.

Detailed response will be very much helpful.