Questions from Thermal Fluid Science

Q: Reconsider Prob. 12–24. Determine how long it will

Reconsider Prob. 12–24. Determine how long it will take to empty the swimming pool completely. Data from Prob. 12-24: The water in an 8-m-diameter, 3-m-high above-ground swimming pool is to be emptie...

Q: Reconsider Prob. 12–25. Using appropriate software, investigate

Reconsider Prob. 12–25. Using appropriate software, investigate the effect of the discharge pipe diameter on the time required to empty the pool completely. Let the diameter vary from 1 to 10 cm in in...

Q: Air at 105 kPa and 37°C flows upward through a

Air at 105 kPa and 37°C flows upward through a 6-cm diameter inclined duct at a rate of 65 L/s. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the r...

Q: Water at 20°C is siphoned from a reservoir as shown

Water at 20°C is siphoned from a reservoir as shown in Fig. P12–28. For d = 8 cm and D = 16 cm, determine (a) the minimum flow rate that can be achieved without cavitatio...

Q: The water pressure in the mains of a city at a particular

The water pressure in the mains of a city at a particular location is 270 kPa gage. Determine if this main can serve water to neighborhoods that are 25 m above this location.

Q: Define static, dynamic, and hydrostatic pressure. Under what conditions

Define static, dynamic, and hydrostatic pressure. Under what conditions is their sum constant for a flow stream?

Q: A pressurized tank of water has a 10-cm-diameter

A pressurized tank of water has a 10-cm-diameter orifice at the bottom, where water discharges to the atmosphere. The water level is 2.5 m above the outlet. The tank air pressure above the water level...

Q: Reconsider Prob. 12–30. Using appropriate software, investigate

Reconsider Prob. 12–30. Using appropriate software, investigate the effect of water height in the tank on the discharge velocity. Let the water height vary from 0 to 5 m in increment...

Q: Consider a river flowing toward a lake at an average velocity of

Consider a river flowing toward a lake at an average velocity of 3 m/s at a rate of 500 m3/s at a location 90 m above the lake surface. Determine the total mechanical energy of the river water per uni...

Q: Air is flowing through a venturi meter whose diameter is 2.

Air is flowing through a venturi meter whose diameter is 2.6 in at the entrance part (location 1) and 1.8 in at the throat (location 2). The gage pressure is measured to be 12.2 psia at the entrance...