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3. What four forces are acting in the momentum balance in open-channel flow? 4. What is...
18. Which type of open-channel flow wave attenuates the most? 19.For what value of dimensionless wavenumber is the attenuation rate of mixed kinematic-dynamic waves a maximum?
V gy Froude number Fr = is important in open channel flow of water, because a. Open channel flow has a pressure that is different everywhere. b. Open channel flow is with a free surface and the flow is driven by gravity. gy represented a wave from bottom to surface. d. Wetted perimeter of water channel P can be a rough surface.
V 9) Froude number Fr = gy is important in open channel flow of water, because a. Open channel flow has a pressure that is different everywhere. b. Open channel flow is with a free surface and the flow is driven by gravity. c. Vgy represented a wave from bottom to surface. d. Wetted perimeter of water channel P can be a rough surface. 10) An open channel flow in a hydraulic lab is designed to line artificially with corrugated...
Question 7 Consider flow in an open channel with slope 1:500 and a Manning's n of 0.030. The channel has a rectangular cross-section with a width of 5 m (a) Uniform flow in this channel has a depth of 1.6 m. What is the flowrate in the channel? (4 marks) (b) Suppose that this uniform flow (at point 1 in the figure below) encounters an obstacle on the channel bed (at point 2). How big would the obstacle need to...
Problem 4- Addition of a System of 3D Forces (20 pts) There are four forces acting at point E. Each force has magnitude of 50 kN. Express each force as a Cartesian vector, and calculate the resultant force. FEC FEA FED FEB D 12 m 6 m 4 m 6 m Problem 4- Addition of a System of 3D Forces (20 pts) There are four forces acting at point E. Each force has magnitude of 50 kN. Express each force...
1. (4 points) Four forces are acting on a disk as shown in the Figure 1. The radius and the mass of the disk are 10 cm and 2 kg, respectively. The disk is free to rotate about a frictionless axle going through its center. (laisk = {MR2) y (a) Find the torque produced by each force. Make 10 N V2N sure to specify the directions. 15 N (b) Find the angular acceleration of the disk. (c) How many turns...
4.5 4 d Vs Mi 3.5 3 2.5 2 1.5 1 0.5 12 14 10 4 6 2 Es and M function Figure above shows 'd vs Es' and d Vs Momentum function graph for an open channel which carries 15mA3/s. What is the critical depth? 1. If the first conjugate depth of a possible jump on this channel (in Question 1) is 0.7m and the tail water depth of the channel equals to the second conjugate depth, what is...
lustrated in the figure below. The flow cross section area is constant at a value of 9000 mm2. The flow pressures at the entrance and exit of the bend are 210 and 172 kPa, respectively. Calculate the horizontal 5 m/s. The (x and y) components of the anchoring force needed to hold the bend in place. (a) What is the density of the water? (b) What is the mass flow rate of water through the system? kg/m3 (a) p- Click...
Fluid Mechanics. Please answer as many as you can. Short answer questions 1) Explain the physical meaning of the acceleration term uVu, where u is the velocity vector in a fluid. 2) Name the two equations that are required to describe the flow of an inertial jet in an incompressible, unstratified fluid. 3) What is the “Continuum Hypothesis”? 4) Describe how a viscous boundary layer adjacent to a solid surface results in transfer of momentum to/from that surface. 5) What...
Q1: If the only forces acting on a 2 kg mass are F, -3i-3) N and F, (7i3)N, what is the magnitude of the acceleration of the particle? a) 9.4 m/s b) 6 m/s ) 4.7 m/s d) 5 m/s