Calculate the flowrate beneath the dam shown and the uplift force per foot of dam. Assume Point A is 40 feet from the front of the structure. K = 2 x 10- 5 cm/sec ! IIK El = 100' El = 81' El = 70' 50¹- AT B El = 80' El = 75'

Water flows over a 3 m wide and 10 m high Ogee spillway with a designed water depth of hd= 3 m. Downstream of spillway is a straight floodway (channel) made of compact aggregates with D50=12 mm and slope of So=0.0003 [25/100]. Note: Assume an energy loss equal to 15% of the velocity head at the downstream. Use Swammy and Mittal’s formula to estimate critical shear stress. Use two iterations if needed. a) Calculate the flow rate.b) Write energy equation and find y1 and Fr1.c) Calculate the tailwater level of the floodway using tractive force method.d) Determine whether the hydraulic jump at the downstream submerges of washes away.e) Design the necessary hydraulic structure (Increasing the slope of apron for submergedcondition or step rise if the jump washes away

Q3) A triangular canal cariying a discharge of 2 m'/s has a step of height 0.3m as shown in the of flow 1.8m figure. Determine the force acting at the step. All 1.5" the necessary parameters are given in the figure. .Twater = 9810 NIm³ 0.3m

A triangular gate 1.20m base and 1.80m high is placed on the face of a dam as shown in the figure. Its base is hinged and the vertex is attached to a cylindrical buoy whose weight is 440 N. The external diameter of the buoy is 1.2m and the weight of the gate is 880 N. The mechanism is such that the buoy will open the gate if the water surface will rise higher than 4m. If YH,0 = 9.79 kN/m³ %3D 1440 N a. Compute the hydrostatic force acting normal to the gate. b. Compute the location of the normal force from the hinge of the gate. Hinged 3m c. What is the length of the cable when the gate is about to open? 4m -1.20m 880 N 1.80m