Consider flow from a water reservoir through a circular hole of diameter D = 0.16m at the sidewall at a vertical distance H from the free surface. The flow rate through an actual hole with a sharp-edged entrance (?? = 0.47) is considerably less than the flow rate calculated assuming “frictionless” flow and thus zero loss for the hole. Disregarding the effect of the kinetic energy correction factor, obtain a relation for the “equivalent diameter” of the sharp-edged hole

Consider flow from a water reservoir through a circular hole of diameter D = 0.16m at the sidewall at a vertical distance H from the free surface. The flow rate through an actual hole with a sharp-edged entrance (?? = 0.47) is considerably less than the flow rate calculated assuming “frictionless” flow and thus zero loss for the hole. Disregarding the effect of the kinetic energy correction factor, obtain a relation for the “equivalent diameter” of the sharp-edged hole

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter7: Seepage

Section: Chapter Questions

Problem 7.1P

See similar textbooks

Similar questions

When a 2-mm-diameter tube is inserted into a liquid in an open tank, the liquid is observed to rise 8 mm above the free surface of the liquid. The contact angle between the liquid and the tube is zero, and the specific weight of the liquid is 1.2 × 104 N/m³. Determine the value of the surface tension for this liquid. J = i N/m
Suppose a Venturi tube (placed in the horizontal position of Pipe BC in Figure 1) from the right (Fig.2). The radius of the wide part of the tube is 5.0 cm; the radius of the thin part of the tube is 2.5 cm. The tube of shape U is filled with the mercury of the density 13600 kg/m . Determine what heightdifference will be stabilized between the surfaces of the mercury in U-tube. Ignore the losses.
A welded steel cylindrical drum made of a 10-mm plate has an internal diameter of 14 m. Compute the change in diameter that would be caused by an internal pressure of 14 MPa. Assume that Poisson's ratio is 0.30 and E = 200 GPa.
The maximum diameter that a capillary tube can have to ensure that a capillary rise of atleast 6 mm is achieved when the tube is dipped into a body of liquid with surface tension = 0.08 N/m and density = 900 kg/m³, is (1) 3 mm (3) 5 mm (2) 6 mm (4) 8 mm
Weter flows up a tapered pipe (figure). A differential mercury manometer is attached to the pipe at Wand B. The pipe has a diameter of 200 mm at A and 100 mm at B, the point B being 1 m above the alot A. Obtain the deflection in the manometer corresponding to a discharge of 50 L/s. Neglect the friction in the pipe. Relative density of mercury 13.6. %D 100 mm 1 m 200 mm
1) At small Reynolds numbers, the viscous forces are larger than the inertial forces and large enough to suppress the rapid fluctuations of the flow. These flows are called laminar flows. True or False 2) The control volume is selected arbitrary, but the bounding control surface should be fixed. True or False 3) In the following figure, which control volume is the best? a) cannot be determined b) CV B c) CV A = CV B d) CV A
Find the capillary rise in a tube for a water glass interface (teta) = 0° if the tube radius is 1mm and the density is 1000 kg/m³. Surface tension of water is 0.0728 N/m.
Water flows steadily from a nozzle into a large tank as shown below. The water then flows from the tank as a jet of diameter d. (a) Using the piezometer tube shown, determine the flow rate through the nozzle. (b) Using the flow rate determine the value d if the water in the tank remains constant. Viscous effects are negligible.
3.5. Consider a Pitot static tube mounted on the nose of an experimental airplane Pitot tube measures the total pressure at the tip of the probe (hence sometimes called the Pitot pressure), and a Pitot static tube combines this with a simultaneous measurement of the free-stream static pressure The Pitot and free-stream static measurements are given below for three different flight conditions Calculate the free-stream Mach number at which the airplane is flying for each of the three different conditions 1 01 x 10$ N/m? (a) Pitot pressure (b) Pitot pressure (c) Pitot pressure = 1 22 x 10' N/m², static 7222 lb/ft?, static pressure 13107 Ib/ft?, static pressure pressure 2116 lb/ft? 1020 lb/ft?
Air (1.23 kg/m³) flows past an object in a 2-m-diameter pipe and exits as a free jet as shown in the figure below. The velocity and pressure upstream are uniform at V = 18 m/s and p = 48 N/m², respectively. At the pipe exit the velocity is non-uniform as indicated. The shear stress along the pipe wall is negligible. (a) Determine the head loss associated with a fluid streamline as it flows over a solid body from the upstream region of uniform velocity to the wake region at the exit plane of the pipe. (b) Determine the force that the air puts on the object. Assume V₁ = 22.7 m/s, V₂ = 4 m/s. 2-m-dia. Air 不 Wake 1-m dia. V, Exit Head loss is associated with changes in static pressure head, dynamic pressure head, elevation and mechanical head in a flow. (a) Does the total head increase or decrease as it flows over the body? (b) What is the decrease in pressure head from a location upstream of the object to a location at the exit plane in the wake of the object? AP= i (c) What is the…
If the velocity is not uniform in the plastic tube, what is the effect of this on the Bernoull equation?
(a) Consider a 1 m wide inclined gate of negligible weight that separates water from another fluid shown in Figure Q1(b). What would be the volume of the concrete block with SG = 2.4 immersed in water to keep the gate at the position shown in the figure? Disregard any frictional effects. 0.6 m 3 m Carbon fetrach SG=1.59 Water 2.5 m Concrete block B=60°