A viscous liquid of constant ρ and μ falls due to gravity between two plates a distance 2h apart, as in Fig. P4.37….

Question: A viscous liquid of constant ρ and μ falls due to gravity between two plates a distance 2h apart, as in Fig. P4.37. The flow is fully developed, with a single velocity component w = w(x). There are no applied pressure gradients, only gravity. Solve the Navier-Stokes equation for the velocity profile between the plates.   Click Read more…

A liquid-level system, such as the one shown in Fig. 5–1, has a cross-sectional area of 3.0 ft2. The valve characteristics are where q = flow rate, cfm…

Question: A liquid-level system, such as the one shown in Fig. 5–1, has a cross-sectional area of 3.0 ft2. The valve characteristics are where q = flow rate, cfm, and h = level above the valve, ft. Calculate the time constant for this system if the average operating level above the valve is (a) 3 Read more…

Saturated liquid R-134a at 25°C is throttled to 300 kPa in a refrigerator. What is the exit temperature? Find the percent increase in the volume flow rate….

Question: Throttle Flow Saturated liquid R-134a at 25°C is throttled to 300 kPa in a refrigerator. What is the exit temperature? Find the percent increase in the volume flow rate.   Click the button below to view answer! If you happen to run into some problem while following the steps, Read more…