en

flow rate

1

Terminological databases

EKI terminibaas Esterm

ID 711036 Last modified 30.12.2004
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Domain environmental management & environmental statistics - exposure measurement
flow rate preferred
flow rate preferred
Usage examples
  • A portable battery-operated pump carried on the worker's belt or in a pocket shall be used. The flow shall be smooth and the rate initially set at 1,0 litres per minute ± 5 %. The flow rate shall be maintained within ± 10 % of the initial rate during the sampling period.
rate of flow

EKI terminibaas Esterm

ID 722924 Last modified 30.12.2004
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Domain Standardisation - MetrologyPhysics
voolukulu preferred
flowrate preferred
rate of flow
rates of flow
voolukulu preferred
kulu
flowrate preferred
Usage examples
  • 1.3. Maximum flowrate (Qmax) The maximum flowrate, Qmax, is the highest flowrate at which the meter must be able to function over limited periods without damage, and without exceeding the maximum permissible errors and the maximum permissible value for loss of pressure. 1.4. Nominal flowrate (Qn) The nominal flowrate Qn, is equal to half the maximum flowrate, Qmax. It is expressed in cubic metres per hour and is used to designate the meter. At the nominal flowrate, Qn, the meter must be able to function in normal use, i.e., in continuous and intermittent operating conditions, without the maximum permissible errors being exceeded. 1.5. Minimum flowrate (Qmin) The minimum flowrate, Qmin, is the flowrate above which the maximum permissible errors must not be exceeded, and is fixed as a function of Qn. 1.6. Flowrate range The flowrate range of the meter is bounded by the maximum and minimum flowrates, Qmax and Qmin. It is divided into two regions, termed upper and lower, with different maximum permissible errors. 1.7. Transitional flowrate (Qt) The transitional flowrate, Qt, is the flowrate which divides the upper and lower regions of the flowrate range and the flowrate at which the maximum permissible errors become discontinuous.
rate of flow
rates of flow

Limnoloogia sõnastik

ID 459474 Last modified 15.07.2023
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Domain hydrography & oceanographygroundwater hydrologyfluid mechanics
discharge preferred
rate of flow
caudal preferred
Volumenstrom preferred
расход воды preferred
  • vooluveekogu ristlõiget ajaühiku jooksul läbiva vee maht
  • volume of water flowing through a river (or channel) cross-section per unit time
  • volumen de agua que fluye a través de una sección transversal de un río o canal en una unidad de tiempo
  • volume d’eau qui traverse une section transversale dans un cours d’eau (ou dans un canal) par unité de temps
  • объем воды, протекающей через поперечное сечение реки (или канала) в единицу времени
vooluhulk
discharge preferred
rate of flow
flow rate
caudal preferred
débit
Volumenstrom preferred
Durchfluss
расход воды preferred

Loomakasvatuse terminibaas

ID 479638 Last modified 15.07.2023
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milking speed
скорость доения
  • piima väljutamise kogus ajaühikus
milking speed
скорость доения

Materjalitehnika terminibaas

ID 671168 Last modified 12.07.2025
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Domain powder metallurgyceramic technology
pulbri voolekiirus preferred
flow rate
flow rate of powder
  • aeg mis kulub ettenähtud massiga pulbrikoguse voolamiseks läbi standardse voolemõõturi kalibreeritud ava etteantud protseduuri kohaselt (vt pulbri voolavus, pulbri voolemõõtur)
  • time required for a powder sample of standard weight to flow through an orifice in a standard instrument (flowmeter) according to a specified procedure (see: flowability, flowmeter)
  • время, необходимое для образца порошка стандартного веса, чтобы протечь сквозь отверстие стандартного приспособления (прибора для измерения текучести) согласно указанной процедуре (см. текучесть, прибор для измерения текучести)
pulbri voolekiirus preferred
flow rate
flow rate of powder
flow factor
время истечения

Materjalitehnika terminibaas

ID 670980 Last modified 15.06.2025
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Domain production technology - process engineering
läbilaskevõime preferred
throughput preferred
thruput
объем выпуска preferred
  • tehnoloogilise protsessi või seadme tootlikust iseloomustav näitaja, nt toodang ajaühikus
  • a measure of the rate of production, in terms of the amount or mass of product, or service per unit time per unit volume of plant
läbilaskevõime preferred
tootlikkus
throughput preferred
thruput
flow rate
объем выпуска preferred

Meteoroloogia ja klimatoloogia terminibaas

ID 515017 Last modified 15.07.2023
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Domain atmosphere - climatology - meteorology - magnetosphere
flow rate

Metroloogia terminibaas

ID 572076 Last modified 22.05.2026
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Domain Standardisation - Metrology
voog preferred
vookogus
voomaht
Q
q
voomahukulu former
voolukulu former
vookulu former
kulu former
vooluhulk former
voolumaht former
kulu mõõtepiirkond deprecated
vedeliku kulu mõõtepiirkond deprecated
voolukiirus deprecated
flow rate preferred
flow-rate
flowrate
rate of flow
Q
q
bulk flow
flow factor variant
rate of run-off variant
  • vookogus, Q = dV/dt, kus V on tegelik voomaht ja t on aeg, mis kulus selle voomahul arvesti läbimiseks
  • voomuunduri ristlõiget läbinud voolava keskkonna vookoguse suhe selle ristlõike läbimiseks kulunud ajaga
  • flow rate, Q = dV/dt, where V is actual volume of flow and t is time taken for this volume to pass through the meter
  • ratio of the quantity of fluid passing through the cross-section of the flow sensor and the time taken for this quantity to pass through this section
  • mass or volume of fluid passing through the primary device per unit time
  • quotient of the quantity of fluid passing trough the cross-section of a conduit and the time taken for this quantity to pass through this section
voog preferred
Usage examples
  • Voog on suurus, mis iseloomustab ajaühikus voolava keskkonna mahtu või massi, mis on oluline vedeliku dünaamika ja inseneriteaduse jaoks.
  • Püsivoo ja soojusarvesti voo alampiiri suhe on tavaliselt 5, 10, 25, 50, 100 või 250.
vookogus
voomaht
Q symbol
q symbol
voomahukulu former
Good to know
  • Termin „voomahukulu“ on seni kasutusel voomõõturite standardites, kuid tuleks lugeda ebasoovitavaks terminiks.
voolukulu former
Good to know
  • Termin „voolukulu“ on seni kasutusel voomõõturite standardites, kuid tuleks lugeda ebasoovitavaks terminiks.
vookulu former
Good to know
  • Termin „vookulu“ on seni kasutusel voomõõturite standardites, kuid tuleks lugeda ebasoovitavaks terminiks.
kulu former
Good to know
  • Termin „kulu“ on seni kasutusel voomõõturite standardites, kuid tuleks lugeda ebasoovitavaks terminiks.
vooluhulk former
Good to know
  • Termin „vooluhulk“ on seni kasutusel voomõõturite standardites, kuid tuleks lugeda ebasoovitavaks terminiks.
voolumaht former
Good to know
  • Termin „voolumaht“ on seni kasutusel voomõõturite standardites, kuid tuleks lugeda ebasoovitavaks terminiks.
kulu mõõtepiirkond deprecated
Good to know
  • Piirkond ei seostu mahuga.
vedeliku kulu mõõtepiirkond deprecated
Good to know
  • Piirkond ei seostu mahuga.
voolukiirus deprecated
Good to know
  • Voolukiirus ei seostu mahuga.
flow rate preferred
Usage examples
  • Flow rate measures the volume or mass of fluid passing a point per unit of time, essential for fluid dynamics and engineering.
  • The ratio between the permanent flow rate and the lower limit of the flow rate of of the thermal energy meter shall normally be 5, 10, 25, 50, 100 or 250.
flow-rate
flowrate
rate of flow
Q symbol
q symbol
bulk flow
flow factor variant
rate of run-off variant

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