only 2.question's answer please , please help me sir
XX = 31
1 Consider a reservoir filled with water of 7m dept p=1000 kg/mand u=0.001 Pa.sA pipe with a nozzle at the end is connected to the bottom of the reservoir. Parameters are written in the figure. Patm
XX:The last 2 digits of your student number
h=7m
Nozzlearea ratio=4 Patm
D=XXcm
L
XX01=/1
Determine values for a and b without taking pressure losses into account:
a Calculate the volume flow rate and exit velocity. b) Determine the pressure and velocity within the pipe.
Then,consider pressure losses in c and d while assuming a constant friction factor of f-0.02. Use minor loss coefficients provided in the table to (everything as seen in the figure, take the most suitable K valuc and clearly report it):
c) Calculate the exit velocity and total pressure loss. d) Find the volume flow rate and velocity within the pipe. e Read the actual f value from the supplicd Moody Chart using the velocity within the pipe in d for smooth surface.
2Consider air flowat the film temperature,p=1.2kg/mand u=2x10Pa.s,k-0.026 W/m.K,Pr-0.7 around a cylinder with diameter of XX cm.The cylinder surface temperature is 10*XX more than the cylinder surface temperature.Free stream velocity is XX/20 m/s.Use Eq.7.52 to evaluate Nusselt Number.Calculate heat flux at the surface(W/m
