For a fixed specific energy head in a flat, rectangular channel, maximum flow rate occurs at the critical depth. At the sluice, d2 = 0.6*opening width, w. If the reservoir energy head, H is 12 ft, what opening of the gate will maximize q?
For a fixed specific energy head in a flat, rectangular channel, maximum flow rate occurs at...
Answer and progress.
A hydraulic jump occurs in a rectangular channel 3.0m wide. The water depth before the jump is 0.6m, and after the jump is 1.6m. Find the followings: (a) the flow rate in the channel Q = m/s (b) the critical water depth yc = m (c) the head loss in the jump, h = m
Subcritical, uniform flow of water occurs in a rectangular, horizontal channel with a width of 5.0 m. The flow has a depth of 2.0 m and a flow rate of 5.0 cu.m/s. The flow encounters a 0.25 m rise in the channel bottom. What is the new normal depth? Is the flow above the rise subcritical, critical or supercritical? Assume frictionless flow
Problem #3 A rectangular channel is 25 ft wide and has a flow of 500 cfs at the velocity of 5 ft/sec a) Determine the specific energy of water in the channel b) What is the critical depth of flow in the channel c) What is the critical velocity
Specific discharge of a wide rectangular channel is 10.0m2/s (Q 10.0m3/s/m). The channel consists of two long reaches having the following bed slope, So1 -0.0001 (for ABC), and So2 = 0.008 for (CDE), (see Figure 1) respectively. There are two gates to control the flow and the flow depth at the vena contractor after each gate is approximately 0.3m. Take the Manning's coefficient as 0.015 Locate every possible flow changing locations and, sketch and name the water surface 1. profiles...
1. a) A rectangular channel is 5m wide and carries a flow of 5m3 /s. Plot the specific energy diagram for 0 < y < 2m. What is the critical depth and minimum specific energy? If the flow has a specific energy of 1.5m, what are the two possible flow depths? b) The channel in a) is narrowed to pass through a culvert 2m wide. It still carries 5m3 /s. What is the flow rate/unit width q (m2 /s) in...
Q1) Consider a rectangular channel with a constant width b, a) Obtain the equation of water surface profile (dy/dx) as function of Froude number and channel bottom slope in a channel transition assuming that over a short distance Ax, the energy losses can be neglected. b) Using the equation you have obtained, draw the water surface profile if flow is supercritical and if there is a downward step at the channel bed and show your results on the graph of...
ca) EX (1) in a rectangle channel (uniform depth) of 1.5m occurs in along rectangular channel of 3m width. If n=0.015, and S=0.001 find. min. height of humpin floor to have critical depth. b) the max. width to produce critical flow. y2yc yl=1.5m Z b=3m
solve all 4 parts please
Water discharging into a 12-m-wide rectangular horizontal channel from a sluice gate is observed to have undergone a hydraulic jump. The flow depth and velocity before the jump are 0.9 m and 9 m/s, respectively. Determine (i) Froude number before the hydraulic jump. Is it subcritical, critical, or supercritical flow? (4 points) (ii) the flow depth and the Froude number after the jump. Is it subcritical, critical, or supercritical flow? (9 points) (iii) the head...
Water flowing at a depth of 4-foet and a velocity of 5.5 f/sec in a 10-foot ular channel encounters a 6-inch hump on the floor of the channel. 8. (13 points) Water flowing at a wide rectangular Determine: ft ft ft Specific Energy approaching the bump Specific Energy crossing the bump Critical depth (ye) at the bump Critical energy (Ec) at the bump Does the bump "choke" the flow? ft
Water flowing at a depth of 4-foet and a velocity...
The following data will be used : A rectangular channel measuring 2m in width on a horizontal slope conveys 3 m3 /s. Assume a frictionless channel. 1) A sub-critical flow depth (y) of 3.0m is observed for the given flow conditions above. Determine the alternate depth for the same specific energy. Determine the critical flow depth. 2) Assume for this question only that the flow depth that is occurring is the super critical flow depth for the specific energy determined...