vorable pressure gradient” and what is the
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(a) Define what is the “favorable pressure gradient” and what is the “adverse pressure gradient.”
(b) Explain by sketch what is “flow separation” and how flow separation occurs.
(c) Explain how to find the “separation location” and how to delineate the “separation region.”
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- Q6. For a synthetic unit hydrograph the width of the unit hydrograph at 50% peak discharge is 87.5 h then the width of unit hydrograph in h at 75% peak discharge would be >Question 29 Which of the following least affects hydraulic gradient or slope of HGL? type of pipe O pipe diameter O pipe length O flow rateWater in a 6-m-wide rectangular channel flows at a rate of 4 m³/s at a depth of 0.6 m. (a) What is the velocity (m/s) of flow upstream of the hump? (b) Is the flow (0.6 m-depth) super-critical or sub-critical? Compute the Froude number. (c) What is the critical depth, Yc (m)? (d) What should be the height, YH (m), of the hump to be installed if we want critical depth to occur? Yc 0.6 m HUMP Profile of channel YH
- Question 12 of 23 A flow os 0.413 m3/s was measured from a rectangular channel flowing 1.20 m wide and 0.60 m deep. If the slope of the channel was 0.0004, what os the roughness of the lining of the channel? Select the correct response: 0.013 0.025 0.021 0.016 < PreviousThe Reynold's number associated with a trapezoidal channel is 3,000,000. The ratio of fluid dynamic viscosity to the fluid density is 0.00000115. The wetted perimeter and area are 14 m and 18 m², respectively. What is the approximate flow of the channel? a. 62 m³/s O b. 80 m³/s O c. 56 m³/s O d. 48 m³/s Clear my choicePROBLEM 6 Water in a 6-m-wide rectangular channel flows at a rate of 4 m³/s at a depth of 0.6 m. (a) What is the velocity (m/s) of flow upstream of the hump? (b) Is the flow (0.6 m-depth) super-critical or sub-critical? Compute the Froude number. (c) What is the critical depth, Y. (m)? (d) What should be the height, YH (m), of the hump to be installed if we want critical depth to occur? Yc 0.6 m HUMP Profile of channel YH
- Water flows at a steady velocity through a horizontal pipe with a changeable diameter. The water velocity is 2 m/sec, and the pressure is 2.5 kPa at point A. The pressure assure drops to 1.5 kPa at point B. What is the water velocity at point B?Compare the cost of pumping a fluid "A" between two points at the same volumetric rate in 10 cm and 15 cm diameter pipes having the same absolute roughness magnitude of 0.2 mm. The flow can be assumed to be in fully developed rough- turbulent regime. [Assume the pipes to be horizontal]Question 03: Consider a flow field represented by the stream function w = (4+27) x'y - (6+27) x'y? + (4+27) xy'. Is this a possible two-dimensional incompressible flow? Is the flow irrotational? Discuss the reasons against your findings.
- notes for the question and actual picture is the question thank you Although the following procedures are more or less sequential, be certain you read through and understand all the procedures and suggestions before you begin to actually construct a flow net. 1. Ensure that the use of a flow net is valid. (a) Flow is steady state. (b) Boundary conditions are known or can be approximated well. 2. Prepare for a trial-and-error solution: there is no unique solution. 3. Ensure that the boundaries of the flow field are drawn to scale. 4. Define the boundaries, and determine the nature of each boundary (a) equipotential, or constant-head, boundary (b) flow line, or no-flow, boundary: commonly an impermeable boundary (c) known-head boundary; commonly the water table (d) most often encountered, two equipotential boundaries and two flow line boundaries. 5. Determine the symmetry of the flow field, if any. This may reduce the work involved-for example, bilateral symmetry would require…In the model test of a spillway the discharge and velocity of flow over the model were 2 m/s and 1.5 m/s, respectively. Calculate the velocity and discharge over the prototype which is 36 times the model size. Note:Use Froud Model Law to solve the question. Velocity Ratio: V = -= JT, %3D V. L T, LN, - = JL, T LV L, Time Ratio: Tr=P3= V,/T, Vr a V IT Tr Acceleration Ratio: a, Discharge Ratio: Q, AV Force Ratio: Fr=m,a, = p_Q}, = pFT =pEF =p1L = pL, Power Ratio: Pr=Fr. Vr=p LV V = p_LV? =pI(L) =p,LWater flows in a horizontal rectangular channel at a depth of 0.5 ft and a velocity of 8 ft/s. Determine the two possible depths at a location slightly downstream. Viscous effects between the water and the channel surface are negligible