QUESTION 1 Use the kinematic wave formula to determine the time of concentration for a small drainage area that has a length of overland flow of 45.72 m and an average overland slope of 0.02 m/m for a rainfall rate of 0.091 m/hr. The drainage area is a turf (n = 0.4). O 21 minutes. O minutes O 22 minutes. O 31 minutes.

Q: A rapid-mixing basin for coagulation is to be designed for a water treatment plant. The design flow…

A: ANSWER:   a)   Calculate the total volume: Here, is the design flow rate and is the detention…

Q: Draw Thiessen polygons on the catchment shown below. If the rainfall depths recorded by Gauge A, B,…

A: Since you have posted multiple questions, we will provide the  solution   only to the first question…

Q: In the following case zero overland flow occurred. Gross rainfall on a 1 hectare hillslope occurred…

A: To determine the volume of precipitation intercepted by the vegetation.   Given, Area of the…

Q: || 21 Using rational method, rainfall intensity-duration curves and the data given in Fig. P 2.27…

A:

Q: Channel width = 7.7_cm Flow, Q =1.0 liters/sec Avg. Calc. V, Time Meas. Vw y1 y1 Avg. y2 y2 Theoret.…

A: Measured Velocity of flow. The length of measured flow is L=400 cm. The time of measured flow is…

Q: The figure below shows two flow lines for seepage across an interface between two soil media of…

A:

Q: In the table below annual rainfalls of gage A, B, C and D are given. Gage D was permanently…

A: The given data is shown below:

Q: 2. Find the intensity of rainfall in the Region 4, that has a return period of 50 years (Using…

A:

Q: Q45. A river discharges 2500 cumecs. The rugosity coefficient of the river bed is 0.028. If a mode…

A:

Q: Which one of the repletion coefficients for a tidal bay suggests the largest planform bay area if…

A:

Q: A wide, clean-earth river has a flow rate q = 150 ft³/s per foot. (a) What is the critical depth, Yc…

A:

Q: 1. Estimate the peak flow rate assuming that the runoff coefficient is 0.4. 2. If the land use and…

A:

Q: If fo = 0.7 in./hr, fc = 0.2 in./hr, and K = 0.5 hr-1, determine the distribution of losses and the…

A:

Q: . (a) Given a triangular 1-hr UH with TB 12 hr, TR= 4 hr, Qp where - 200 cfs, TB-time base of the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The piezometric head at point C, in the experimental set-up shown in figure when the flow takes…

A:

Q: The peak flow of a flood hydrograph caused by an isolated storm was observed to be 100 m³/s. The…

A:

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.