What is Water flow: Definition and 162 Discussions
Environmental flows describe the quantity, timing, and quality of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well being that depend on these ecosystems. In the Indian context river flows required for cultural and spiritual needs assumes significance. Through implementation of environmental flows, water managers strive to achieve a flow regime, or pattern, that provides for human uses and maintains the essential processes required to support healthy river ecosystems. Environmental flows do not necessarily require restoring the natural, pristine flow patterns that would occur absent human development, use, and diversion but, instead, are intended to produce a broader set of values and benefits from rivers than from management focused strictly on water supply, energy, recreation, or flood control.
Rivers are parts of integrated systems that include floodplains and riparian corridors. Collectively these systems provide a large suite of benefits. However, the world's rivers are increasingly being altered through the construction of dams, diversions, and levees. More than half of the world's large rivers are dammed, a figure that continues to increase. Almost 1,000 dams are planned or under construction in South America and 50 new dams are planned on China's Yangtze River alone. Dams and other river structures change the downstream flow patterns and consequently affect water quality, temperature, sediment movement and deposition, fish and wildlife, and the livelihoods of people who depend on healthy river ecosystems. Environmental flows seek to maintain these river functions while at the same time providing for traditional offstream benefits.
water from tap...
A tap is left slightly open., and a gentle stream of water is flowing downwards from it.
Why is it that the stream becomes thinner as it gets farther away from the tap?
??
You may know that water flow can be measured by an electromagnetic flowmeter.
A strong magnetic field is applied perpendicular to the flow.
An electric field is measured in the third direction.
It seems to work just like a dynamo, which I understand, at least I believed that.
But why...
Water flows through a horizontal pipe and then out into the atmosphere at a speed v1 = 19 m/s. The diameters of the left and right sections of the pipe are 4.3 cm and 2.1 cm, respectively. (a) What volume of water flows into the atmosphere during a 16 min period? In the left section of the pipe...
I've got two tubes filled with liquid, their both of equal diameters, the first one is straight up and down about 20 feet long, the other is 100 feet long but is spiraled like on a spool, since the straight tube has a higher fall than the spiral, I would assume that the straight tube would have...
does anyone know how i could go about calculating how much power is needed to move 1,972,080 gallons of water at a constant rate of 25mph or 475,200,000 ft/s?...my friend and i are trying to figure out how to draw up a pool of water that would do this and i don't know how i could go about...
Neglecting evaporation, if you have a cubic mile of water (1 mile by 1 mile by 1 mile) how long would it take to drain if at the bottom there is a one square inch opening?
I am verifying my answer with some really bright people. You
Hi,
Please could someone explain why it is that the cross section of water emerging from a tap decreases with tap distance ... is it due to air resistance acting to form some kind of aerodynamic shape? any thoughts would be much appreciated!
This is the last problem with fluid mechanics and I have no clue about this one... any ideas?
Water flows through a horizontal pipe and is delivered into the atmosphere at a speed of v1=15.9 m/s. The diameters of the left and right sections of the pipe are 8.5 cm and 2.5 cm, respectively. (a)...
water flow venturi meter problem! Heeeelp please :)
Hi,
The objects of my experiment where
1) to find out the theoretical and experimental pressures in a venturi tube,
2) To determin the coefficient of discharge for the venturi
here is the data i collectec...
I've struggled with this since this morning with hardly any progress.
"There is a level pipe filled with water flowing through it. Branching off from this pipe are two pipes going perpendicularly upward, with a cross sectional area Sa, Sb, respectively, and there being a difference in water...
Hi everyone….I have a new question. I am writing a lab write-up and I am kind of confused about a concept. In this lab I studied the even flow of water by analyzing the flow of water through a Bernoulli’s pipe. The pipe was set up in a way that it was vertical, open at the top (where a hose...
For fourty years the Bernoulli terms of H+Z+v^2/2g = K offered me a seemingly perfect tool for hydraulic engineering.
Suddenly the wheels have fallen off this wagon because v^2 in a STRAIGHT line has a potential equivalence of H... v^2 in a CIRCULAR path has 2H equivalence ? A Newtonian...