Venturi Meter
Venturi Meter - Related Videos
05:26
A Venturi Effect Can Help Cure Our Trees
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Cited by 24 •
2013
Compared to the more traditional hole-based methods, most of which require the tree to be drilled, tools with lenticular blades transform the basics of endotherapy easing the closure of the wound and allowing the natural uptake of the solutions.
09:28
Using a pH Meter
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2023
Source: Laboratory of Dr. Zhongqi He - United States Department of Agriculture Acids and bases are substances capable of donating protons (H+) and hydroxide ions (OH-), respectively. They are two extremes that describe chemicals. Mixing acids and bases can cancel out or neutralize their extreme effects. A substance that is neither acidic nor basic is neutral. The values of proton concentration ([H+]) for most solutions are inconveniently small and difficult to compare so that a more practical...
17:31
Operant Learning of Drosophila at the Torque Meter
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Cited by 25 •
2008
Measuring the yaw torque of tethered Drosophila with the torque meter allows the neuroscientist exquisite control of the stimulus situation of the experimental animal. Together with the unique genetic tools available in the fruit fly, this paradigm is used for a wide variety of neurobiological research.
01:16
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
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2025
Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter. Venturi Mask The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
13:35
Mass Conservation and Flow Rate Measurements
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2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The purpose of this experiment is to demonstrate the calibration of a flow passage as a flowmeter using a control volume (CV) formulation [1, 2]. The CV analysis focuses on the macroscopic effect of flow on engineering systems, rather than the detailed description that could be achieved with a detailed differential analysis. These two techniques should be...
FAQs
The pressure fall results from fluid acceleration as the passage narrows. Continuity links the smaller throat area to a higher fluid velocity, while Bernoulli’s principle links that velocity increase to a lower static pressure. Measuring the inlet-to-throat pressure difference therefore supplies the pressure information needed to determine flow behavior through the meter.
The converging section directs flow toward the narrow throat, where the velocity change becomes measurable through a pressure difference. The diverging outlet then expands the passage after the throat. Together, these shaped regions create the geometry required to relate pressure measurements to flow rate, rather than treating the meter as a simple straight-pipe measurement point.
Low permanent pressure loss matters because the meter can measure flow without causing as large a lasting pressure reduction as some more restrictive arrangements. That characteristic supports its use in engineered piping systems where maintaining useful pressure through the system is important, including water distribution and process installations.
To determine flow rate, first obtain the pressure difference between the inlet and throat, then combine it with the relevant pipe and meter geometry. Bernoulli’s principle connects the pressure and velocity changes, while continuity connects velocity with the passage area. Applying both relationships produces the flow-rate calculation for the engineering system.
The pressure difference is an intermediate measurement rather than the final engineering result. When interpreted with the inlet, throat, and pipe geometry, it can provide the fluid velocity and volume flow rate. Engineers can then use those values to assess transport through a pipe and support monitoring or control of the connected system.
Applications include water distribution, chemical processing, HVAC systems, and industrial process control. In each setting, the same pressure-based measurement connects local behavior inside the meter with a system-level flow value. That makes the device useful for evaluating or regulating fluid movement across different engineering environments rather than limiting it to laboratory fluid-mechanics demonstrations.