Flow Speed Regulation
Flow Speed Regulation - Related Videos
07:28
Pitot-static Tube: A Device to Measure Air Flow Speed
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2023
Source: David Guo, College of Engineering, Technology, and Aeronautics (CETA), Southern New Hampshire University (SNHU), Manchester, New Hampshire A Pitot-static tube is widely used for measuring unknown speeds in air flow, for example, it is used to measure airplane airspeed. By Bernoulli's principle, airspeed is directly related to variations in pressure. Therefore, the Pitot-static tube senses the stagnation pressure and static pressure. It is connected to a manometer or pressure transducer...
08:04
Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
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Cited by 4 •
2019
The goal of this protocol is to use temperature to control the flow speeds of three-dimensional active fluids. The advantage of this method not only allows for regulating flow speeds in situ but also enables dynamic control, such as periodically tuning flow speeds up and down.
08:34
Visualization of High Speed Liquid Jet Impaction on a Moving Surface
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Cited by 4 •
2015
Two experimental devices for examining liquid jet impingement on a high-speed moving surface are described: an air cannon device and a spinning disk device. The apparatuses are used to determine optimal approaches to the application of liquid friction modifier (LFM) onto rail tracks for top-of-rail friction control.
16:19
Heterotopic Auxiliary Rat Liver Transplantation With Flow-regulated Portal Vein Arterialization in Acute Hepatic Failure
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Cited by 5 •
2014
Auxiliary liver transplantation provides a temporary support in acute hepatic failure, until regeneration of the failing liver. The heterotopic auxiliary liver transplantation (HALT) with portal vein arterialization (PVA) renders sufficient liver function. We developed an analogous technique in the rat, to examine the influence of the portal vein arterialization on the morphology and function of the graft.
11:59
High-speed Particle Image Velocimetry Near Surfaces
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Cited by 19 •
2013
A procedure for studying transient flows near boundaries using high-resolution, high-speed particle image velocimetry (PIV) is described here. PIV is a non-intrusive measurement technique applicable to any optically accessible flow by optimizing several parameter constraints such as the image and recording properties, the laser sheet properties, and analysis algorithms.
FAQs
Feedback control allows a system to respond when actual flow differs from the desired target. Sensors provide measurements, and the controller uses the difference between measured and target values to adjust a valve, pump, or fan. This continuous correction helps maintain stable operation despite changing system demands, supporting consistent processing conditions and reducing the risk of unwanted deviations.
Pressure difference is one of the variables that determines how fluid or gas moves through a system. Changes in pressure can alter flow speed, pressure losses, and turbulence, so regulation must account for their combined effects. Managing these conditions helps engineers maintain the intended operating range, avoid unnecessary energy use, and reduce stress on connected equipment.
Flow speed can change when system demands shift or when valve position, pump output, fan output, or pressure difference changes. These variations may also affect turbulence and pressure losses. A regulated system addresses such deviations by comparing measured flow with the target and correcting the controlling variable, helping preserve stable conditions and reduce associated safety risks.
A typical workflow begins by selecting the required flow target and identifying the variable most suitable for adjustment, such as valve opening, pump output, or fan output. Engineers then use sensors to measure actual flow, compare it with the target, and apply corrective adjustments. The resulting system can be evaluated for stability, pressure losses, turbulence, energy efficiency, and safe operation.
Engineers can regulate flow by changing valve opening, pump output, fan output, or the pressure difference across the system. The appropriate choice depends on whether the installation moves liquid or gas and how the process is configured. Coordinating these elements with measurement and feedback helps maintain the desired operating condition without relying on a fixed setting alone.
Applications include water treatment, chemical processing, HVAC systems, fuel delivery, and manufacturing. In these settings, controlled flow can help maintain stable process conditions, support consistent product quality, protect equipment, and improve energy efficiency. The same underlying approach also helps manage changing demands, turbulence, pressure losses, and safety concerns across different engineered systems.