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=== Metric units === ...zzle in [[Bar (unit)|bar]] and ''K'' is the ''K-factor'' is given in units of <math> (l/min)/\sqrt\text{bar}</math>. ...

...not constant for a given fan, but changes with both air flow rate and fan pressure rise. SFP for a given fan system and operating point (combination of flow rate and pressure rise) is defined as: ...

...ground down to the total depth (TD), as compared to the pressure gradient of seawater in deep water. ...unction]] expressed by the math notation grad(''f'') may not have physical units associated with it. ...

...re or the Earth's crust. In seismology or geodesy it describes the effects of the body to applied forcing (tidal admittance <ref> {{cite book| url=https: ...1 coronae on Venus|year=2004|last1=Hoogenboom|first1=Trudi|journal=Journal of Geophysical Research|volume=109}}</ref> ...

{{short description|Unit of pressure or stress}} | caption = A [[pressure gauge]] reading in psi (red scale) and [[kPa]] (black scale) ...

...squared [[sound pressure]]. The [[International System of Units|SI unit]] of sound exposure is the [[Pascal (unit)|pascal]] squared second (Pa<sup>2</su *''p(t)'' is the [[sound pressure]] at time ''t'', usually [[A-weighted]] for sound in air. ...

{{short description|Fluid pressure gradient required to cause a unit change in volumetric flow rate}} ...ate of change of [[volumetric flow-rate]] with time. The base [[SI]] units of inertance are {{nowrap|kg m⁻⁴}} or {{nowrap|Pa s² m<s ...

{{Short description|Method to estimate saturated vapor pressure}} ...ssure]] at a given temperature for all components for which the [[critical pressure]] ''P''_c, the [[critical temperature]] ''T''_c, and th ...

{{Short description|Unit of volumetric flow rate of a gas at STP}} ...perature of 273.15&nbsp;K (0&nbsp;°C, 32&nbsp;°F) and an absolute pressure of 100&nbsp;kPa (1&nbsp;[[bar (unit)|bar]]). ...

...[[gravitational acceleration|acceleration due to gravity]] and [[density]] of the fluid. ...ten be a locally unsteady [[fluvial]] system, when averaged over distances of kilometers, these local variations average and the depth–slope product beco ...

...ould not be confused with the [[Darcy friction factor]] which applies to [[pressure]] drop in a pipe. It is defined as ...s the [[Permeability (earth sciences)|permeability]] of the medium ([[SI]] units: {{math|m²}}); ...

...1200-semi-e12-guide-for-standardized-pressure-temperature-density-and-flow-units-used-in-mass-flow-meters-and-mass-flow-controllers |access-date=2024-03-24} ...at a density defined at some standard temperature, <math> T_n </math>, and pressure, <math> p_n </math>. ...

...the maximum load, <math>P_\text{max}</math> divided by the projected area of the indent, <math>A_\text{p}</math>.<ref name=":0">{{Cite book|title=Nanoin ...]] (MPa) are frequently used for reporting Meyer hardness, but any unit of pressure can be used.<ref name=kts>{{Citation | title = Hardness Testing | url = htt ...

{{Short description|Equation in Fluid Mechanics, relating density & pressure}} ...t IV |chapter=Report on some of the physical properties of fresh water and of sea water}}</ref> ...

...of [[semi-empirical]] correlations describing the relation between [[vapor pressure]] and temperature for pure substances. The Antoine equation is derived from |trans-title=Vapor Pressure: a new relationship between pressure and temperature ...

...description|Difference between the confining and bulk pressures of a phase of matter}} ...orce''', which can be viewed as disjoining pressure times the surface area of the interacting surfaces. ...

An [[equation of state]] introduced by R. H. Cole<ref> | title = Supersonic flow and shock waves a manual on the mathematical theory of non-linear wave motion ...

...s an [[axial compressor]], but it operates in the reverse, converting flow of the fluid into rotating [[mechanical energy]]. ...nes accelerates and adds swirl to the fluid and directs it to the next row of turbine blades mounted on a turbine rotor. ...

...te book|last1=Kolasinski|first1=Kurt W.|title=Surface Science: Foundations of Catalysis and Nanoscience, Third Edition|year=2012|page=203|doi=10.1002/978 |''N'' || Number of gas molecules ...

...agnitude]]s of certain quantities referenced to a standard reference value of the same type. ...er by the inverse of the conductor's resistance), etc., with commonly used units [[neper]] (Np) or [[decibel]] (dB). ...