International
Electrotechnical
Commission
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Area
Physics for electrotechnology
/ Mechanics
IEV ref
113-03-41
Symbol
Fr
en
Froude number
quantity of dimension 1 characterizing the relative importance of inertial and gravitational forces in a flow of fluid, defined by
F
r
=
v
l
g
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadAeacaWGYbGaey ypa0ZaaSaaaeaaruGqV92AGeKB0LwC1fgaiuGacaWF2baabaWaaOaa aeaaiiGacaGFSbGaaGjcVlaa+DgaaSqabaaaaaaa@44CA@
, where
v
is the speed of the flow,
l
is a characterizing length of the phenomenon, and
g
is acceleration of free fall
fr
nombre de Froude
, m
grandeur sans dimension caractérisant l'importance relative des forces inertielles et gravitationnelles dans un écoulement de fluide, définie par
F
r
=
v
l
g
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadAeacaWGYbGaey ypa0ZaaSaaaeaaruGqV92AGeKB0LwC1fgaiuGacaWF2baabaWaaOaa aeaaiiGacaGFSbGaaGjcVlaa+DgaaSqabaaaaaaa@44CA@
, où
v
est la vitesse de l’écoulement,
l
est une longueur caractéristique du phénomène et
g
est l’accélération due à la pesanteur
ar
عدد (كمية) فرويد
cs
Froudovo číslo
de
Froude-Zahl, f
es
número de Froude
fi
Frouden luku
it
numero di Froude
ko
프루드 수
ja
フルード数
pl
liczba Froude’a
pt
número de Froude
sv
froudetal
zh
弗劳德数
Publication date:
2011-04
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