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38 relations: Area, Atmospheric pressure, Bernoulli's principle, Centimetre of water, Density, Dynamic pressure, Flow measurement, Fluid, Fluid mechanics, Force, Hydraulic head, Hydrostatics, Inch of water, Incompressible flow, Infinity, Instrumentation, Internal energy, Length, Mass, Mass flow rate, Mercury (element), Millimeter of mercury, Pascal (unit), Physical property, Pressure, Pressure measurement, Siphon, Specific weight, Speed, Standard gravity, Static pressure, Vacuum, Venturi effect, Volume, Volumetric flow rate, Water, Weightlessness, Working fluid.
Area
Area is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane.
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Atmospheric pressure
Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet).
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Bernoulli's principle
In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
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Centimetre of water
A centimetre of water (US spelling centimeter of water, abbreviated cm or cm H2O) is a less commonly used unit of pressure derived from pressure head calculations using metrology.
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Density
The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.
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Dynamic pressure
Dynamic pressure (sometimes called velocity pressure) is the increase in a moving fluid's pressure over its static value due to motion.
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Flow measurement
Flow measurement is the quantification of bulk fluid movement.
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Fluid
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.
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Fluid mechanics
Fluid mechanics is a branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.
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Force
In physics, a force is any interaction that, when unopposed, will change the motion of an object.
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Hydraulic head
Hydraulic head or piezometric head is a specific measurement of liquid pressure above a geodetic datum.
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Hydrostatics
Fluid statics or hydrostatics is the branch of fluid mechanics that studies fluids at rest.
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Inch of water
Inches of water, inches of water gauge (iwg or in.w.g.), inches water column (inch wc or just wc), inAq, Aq, or inHO is a non-SI unit for pressure.
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Incompressible flow
In fluid mechanics or more generally continuum mechanics, incompressible flow (isochoric flow) refers to a flow in which the material density is constant within a fluid parcel—an infinitesimal volume that moves with the flow velocity.
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Infinity
Infinity (symbol) is a concept describing something without any bound or larger than any natural number.
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Instrumentation
Instrumentation is a collective term for measuring instruments used for indicating, measuring and recording physical quantities, and has its origins in the art and science of scientific instrument-making.
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Internal energy
In thermodynamics, the internal energy of a system is the energy contained within the system, excluding the kinetic energy of motion of the system as a whole and the potential energy of the system as a whole due to external force fields.
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Length
In geometric measurements, length is the most extended dimension of an object.
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Mass
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
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Mass flow rate
In physics and engineering, mass flow rate is the mass of a substance which passes per unit of time.
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Mercury (element)
Mercury is a chemical element with symbol Hg and atomic number 80.
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Millimeter of mercury
A millimeter of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high and now defined as precisely pascals.
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Pascal (unit)
The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength.
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Physical property
A physical property is any property that is measurable, whose value describes a state of a physical system.
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Pressure
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
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Pressure measurement
Pressure measurement is the analysis of an applied force by a fluid (liquid or gas) on a surface.
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Siphon
The word siphon (from σίφων "pipe, tube", also spelled syphon) is used to refer to a wide variety of devices that involve the flow of liquids through tubes.
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Specific weight
The specific weight (also known as the unit weight) is the weight per unit volume of a material.
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Speed
In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity.
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Standard gravity
The standard acceleration due to gravity (or standard acceleration of free fall), sometimes abbreviated as standard gravity, usually denoted by or, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth.
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Static pressure
In fluid mechanics the term static pressure has several uses.
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Vacuum
Vacuum is space devoid of matter.
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Venturi effect
The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section (or choke) of a pipe.
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Volume
Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.
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Volumetric flow rate
In physics and engineering, in particular fluid dynamics and hydrometry, the volumetric flow rate (also known as volume flow rate, rate of fluid flow or volume velocity) is the volume of fluid which passes per unit time; usually represented by the symbol (sometimes). The SI unit is m3/s (cubic metres per second).
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Water
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
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Weightlessness
Weightlessness, or an absence of weight, is an absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces (from floors, seats, beds, scales, etc.). Counterintuitively, a uniform gravitational field does not by itself cause stress or strain, and a body in free fall in such an environment experiences no g-force acceleration and feels weightless.
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Working fluid
A working fluid is a pressurized gas or liquid that actuates a machine.
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References
[1] https://en.wikipedia.org/wiki/Pressure_head
