The figure below shows an inflow and an outflowhydrograph that was calculating using theMuskingum method for routing the hydrographover a river reach. What is the peak flowattenuation between inflow and outflowhydrographs?500Inflow400Outflow3002001000 1 2 36 7 8 9 10 11 12Time [hours]4Flow [cms]

Answered: Image /qna-images/answer/86ec9ea2-0078-44d9-b548-950a19ea7bf1.jpg

he figure below shows an inflow and an o drograph that was calculating using the uskingum method for routing the hydrog ver a river reach. What is the peak flow tenuation between inflow and outflow ydrographs? 500 Inflow 400 Outflo 300 200 100 0 1 2 3 4 5 7 8 9 10 11 Flow [cms]

he figure below shows an inflow and an o drograph that was calculating using the uskingum method for routing the hydrog ver a river reach. What is the peak flow tenuation between inflow and outflow ydrographs? 500 Inflow 400 Outflo 300 200 100 0 1 2 3 4 5 7 8 9 10 11 Flow [cms]

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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3. The inflow hydrograph in the table is for flows observed at a river cross-section over two days. Your job is to develop the outflow hydrograph for the next cross-section 3 mi downstream using Muskingum K = 11 hr and X = 0.13. Plot both hydrographs on a single graph. Time (hr) Inflow (cfs) Outflow (cfs) 100 100 6. 300 12 380 18 500 24 400 30 310 230 100 36 42
The hydrograph tabulated below was observed for a river draining a 40 square miles catchment, following a storm lasting 3 hours. Нour Нour fr3/s Нour fi3/s 450 5500 9000 7500 6500 24 27 3500 3000 2600 2210 48 1070 950 840 750 3 51 54 57 30 33 36 39 42 12 1890 60 15 18 21 5600 4800 660 590 540 1620 63 1400 1220 66 4100 45 Separate base-flow from runoff and calculate total runoff and calculate total runoff volume. What was the net rainfall in inches per hour?
Example -2 Using the given 6-h unit hydrograph derive the flood hydrograph due to the storm given below, UH: Time (h) 6-h UH ordinates (m³/s) 0 20 60 150 120 90 66 Storm: 0 6 12 18 24 30 36 42 48 54 60 66 Time from beginning of the storm (h) 0 Accumulated rainfall (cm) 0 50 32 20 10 0 6 12 18 4 5 10 The index for the storm can be assumed to be 0.167 cm/h. Assume the base flow to be 20 m³/s constant throughout.
6 The ordinates of a 6-h unit hydrograph are as given below: Time (b) 6-h UH 12 18 24 30 36 42 48 54 60 75 25 50 100 87.5 75 62.5 50 37.5 25 72 66 72 78 12.5 0 0 ordinates (m3/s) Calculate the resulting hydrograph (flood hydrograph) due to storm of rainfall excess of 2 cm during the first 6 hours and 4 cm during the second 6 hours interval. The base flow can be assumed to be 25 m³/s constant throughout.
What volume equalization basin is required to even outflow variations in the following data? Assume the flows are hourly averages. Time 0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 Flow (m³/s) 0.0875 0.0700 0.0525 0.0414 0.0334 0.0318 0.0382 0.0653 0.113 0.131 0.135 0.137 Time 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 Flow (m³/s) 0.135 0.129 0.123 0.111 0.103 0.104 0.105 0.116 0.127 0.128 0.121 0.110
Q1) During a storm , the hourly rainfall data was as follows: 0 1 2 3 4 5 6 7 8 9 Time (hrs) Rainfall (mm/hr) | 0 | 20 | 25 45 30 10 10 | 15 10 0 1) plot the hyetograph 2) calculate and plot Mass Curve Ordinate.
Three inches of runoff produced the hydrograph below. Find the unit hydrograph. What value goes in the highlighted cell? 24-hr Storm Runoff 24-hr Unit Time Hydrograph Hydrograph (hr) (cfs) |(cfs) 150 300 12 1050 16 1260 20 1500 24 1800 28 2010 32 2700 36 3360 40 5100 44 3900 48 3138 52 1956 56 1650 60 1200 64 1188 68 450 72 270 76 O 250 cfs O 150 cfs O 100 cfs O O cfs O 450 cfs O 200 cfs O 50 cfs
Q1) During a storm , the hourly rainfall data observed was as follows: Time (hrs) Rainfall (mm) 0 1 2 3 4 5 6 78 9 0 25 20 45 30 10 0 15 10 0 Calculate and plot the following: 1) Hyetograph 2) Mass Curve.
Table Q4 shows the details of the storm hydrograph with the corresponding direct discharge. The given time interval is 3 hours between the readings. Q4 Table Q4 Excess rainfall (mm) 11 Time (hr) Direct discharge (m³/s) 3 70 28 230 9. 30 600 12 1400 15 2380 18 3300 21 4880 24 6320 27 3305 30 350 33 300 36 100 By using the convolution method, determine the unit hydrograph ordinates. (a) (b) Illustrate the unit hydrograph.
The figure below shows an inflow and an outflow hydrograph that was calculating using the Muskingum method for routing the hydrograph over a river reach. What is the peak flow attenuation between inflow and outflow hydrographs?
'The table below gives the ordinates of a stream, flow hydrograph at the outlet of a catchment of an area 600 km2 due to a storm that is believed to have duration of 3 hours. Assuming a constant base flow of 50 m³ /s, compute the ordinates of a 3-hour UH for the catchment. Time (hr) 0 3 6 9 12 | 21 | 27 30 150 15 18 24 33 36 Flow 50 600 950 700 530 400 310 240 190 110 80 50 (m/s)
There are five (5) rain gauges dispersed throughout a watershed. During a storm event, four (4) of the rain gauges were working and collected the rainfall data given in the table below along with the annual average precipitation for each rain gauge. Determine the missing rainfall amount for the broken rain gauge using the quadrant (inverse distance) method, and the normal ratio. Station Rainfall (mm) Annual (mm) AX (m) ΔΥ (m) Area (m²) A 42 500 10 25 1500 В 30 480 15 30 2000 50 558 24 30 830 D 526 500 -- E 35 590 19 1200 40