When a dam is installed in a river that has salmon, an alternative path of travel for spawning is critical to the survival of the salmon. It is desired to install a series of observation windows so that the public can watch the salmon "run" through this bypass during the season. The design for observation windows is shown in Fig. 4.58 and the wetted portion of the window will be a rectangle of
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Applied Fluid Mechanics (7th Edition)
- 5. A human being has an average venous blood pressure of 12 mm Hg (Hg = mercury). The density of Hg (mercury) is 13,530 kg/m3. How high does a saline bag have to be raised to just barely equal to that of the blood in the vein) of saline through a line and needle inserted into a person's vein? The density of saline is 1020 enable the flow (that is, the pressure of the saline at the needle kg/m3.arrow_forward5. Blow-off valve Imagine that you pour 100 liters of liquid nitrogen into a tank that can handle 120 liters and then seal it off. (The density of liquid nitrogen is 0.808 g-cm3.) What is the pressure of the gas above the liquid when you seal it off? (Think about it) b. What would the pressure be if all of the liquid was boiled off to make a gas? Let's say the а. temperature was raised from 77K to 80K. Discuss what you would likely have to do in order to prevent an explosion. С.arrow_forwardWhat force does the water exert on the piston?arrow_forward
- can you help me with part c) pleasearrow_forwardcan you help me with part a) pleasearrow_forward5.) A glass tubing consists of 5 vertical stems which are 500 mm apart connected to a single horizontal tube. The tube is filled with water to a depth of 500 mm in the vertical stems. How fast should it be rotated about and axis through the middle stem to just zero the depth of water in that stem? Subject: Fluid Mechanic Lesson: Relative Equilibrium of Liquids Fundamentals of Fluid Flowarrow_forward
- A droplet with an inner pressure that is 0.075 psi higher than the air has a diameter of 0.03 inches. Find the surface tension of this droplet. a. 0.0081 lb/ft b. 0.0068 lb/ft c. 0.0054 lb/ft d. 0.0072 lb/ftarrow_forwardPLEASE ANSWER QUESTION # 2 ONLY, DISREGARD THE OTHER PROBLEMS GIVEN. SHOW COMPLETE SOLUTION. THANK YOU. Intravenous infusions usually are driven by gravity by hanging the fluid bottle at sufficient height to counteract the blood pressure in the vein and to force the fluid into the body (fig. below). The higher the bottle is raised, the higher the flow rate of the fluid will be. An 8 ft diameter by 16 ft height vertical tank is receiving water (? = 62.5 lb/ft3) at the rate of 295 gal/min and discharging through a 4-in ID line with a constant speed of 6 fps. At a given instant, the tank is half full. QUESTION #1: the mass change in the tank (sample answer: 20,287.65 lb. round off to 2 decimal place QUESTION #2: the water level in the tank 15 min. later (sample answer: 20,287.65 ft round off to 2 decimal place QUESTION #3: the volume change in the tank (sample answer: 20,287.65 cu ft round off to 2 decimal placearrow_forward4. SallySue (BillyBob's long suffering wife) is watering the goats in the back 40 acres, and has to cobble together a couple of old garden hoses to make the distance from her outside water tap. Assume that the ground is perfectly flat and there is no change in elevation. Yes, Billy Bob and SallySue Huckaby live on a flood plain and get flooded out regularly. But I digress. Connected to the tap, there is a 2.00cm-d hose, and that is connected to a 3.00cm-d hose which reaches the water trough for the goats. Assume that the holes in the pipe have been properly mended with duct tape so there are no leaks. If it takes 2.50minutes to fill up the 20.0gallon water trough (old bathtub), determine the difference in pressure between the second hose and the first.arrow_forward
- Task 3:Your work is to study the following well-type manometer that will be used for students in the fluidmechanics lab:The manometer is built with a tube diameter of 20 mm and a reservoir diameter of 10 cm. Whenthere is no pressure difference across the manometer, the elevations on both sides are the same atA* level. 1. When a high pressure is applied to the left side, the water in the small tube goes 30 cm up,calculate PA.2. Explain the use and limitations of manometers. Then suggest two points for using welltype manometer for accurate measurements, write your answer in 75 words or less.arrow_forward4.23 Water issues out of a conical tank whose radius of cross section varies lin- early with height from 0.1 m at the bottom of the tank. The slope of the tank wall with the vertical is 30°. Calculate the time taken for the tank to be emp- tied from an initial water level of 0.7 m through a circular orifice of 20 mm diameter at the base. Take C, of the orifice to be 0.6. dus (437 07)arrow_forwarda) Is it true that if a flow doesn’t change its magnitude or direction, there will be no net momentum imposed by the flow? Please explain.arrow_forward
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