Discharge or Flow Rate | Fluid Mechanics and Hydraulics
Discharge (also called flow rate) The amount of fluid passing a section of a stream in unit time is called the discharge. If v is the mean velocity and A is the cross sectional area, the discharge Q is defined by Q = Av which is known as volume flow rate.
Discharge (hydrology) - Wikipedia
A discharge is a measure of the quantity of any fluid flow over unit time. The quantity may be either volume or mass. Thus the water discharge of a tap (faucet) can be measured with a measuring jug and a stopwatch.
How Streamflow is Measured | U.S. Geological Survey - USGS.gov
2018年6月13日 · Discharge is the volume of water moving down a stream or river per unit of time, commonly expressed in cubic feet per second or gallons per day. In general, river discharge is computed by multiplying the area of water in a channel cross section by the average velocity of the water in that cross section: discharge = area x velocity
Discharge coefficient - Wikipedia
In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, [1] i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same ...
Volumetric flow rate - Wikipedia
In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol Q (sometimes ˙).
12.1: Flow Rate and Its Relation to Velocity - Physics LibreTexts
Flow rate and velocity are related by \(Q = A\overline{v}\) where \(A\) is the cross-sectional area of the flow and \(v\) is its average velocity. For incompressible fluids, flow rate at various points is constant.
Kinematics of Flow in Fluid Mechanics- Discharge and Continuity ...
Discharge or rate of flow (Q) is defined as the fluid flowing per second through a channel or section of a pipe. This rate of flow is expressed in terms of “volume” when the fluid flow is incompressible and is taken in terms of “weight” when the flow is compressible.
Streamflow: What is it, and How Do We Measure It?
2023年3月30日 · Streamflow tells us how much water is flowing past a certain point in a stream or river. Streamflow (or discharge) affects almost all aspects of stream health, including essential biological and chemical processes.
Pipe Flow Calculator
2024年7月24日 · Use the pipe flow calculator to find the velocity and discharge of water in a gravity-fed pipe flow.
Discharge of liquids (Torricelli’s law) - tec-science
2019年11月21日 · Torricelli’s law (Torricelli’s theorem) states that the discharge velocity of a liquid equals a free fall of the liquid from the liquid surface to the opening of the tank. It is relatively easy to determine the speed at which a liquid in a vessel flows out through an opening due to the hydrostatic pressure.