Class notes
Fiches mecanique des milieux continues - hydrodynamique
- Course
- Institution
3 fiches sur l’essentiel du cour d’hydrodynamique de L3 - conservation -fluide -Bernoulli -fonction de courant
[Show more]
Seller
Followlauranardelli
Content preview
MW-quemmihuxw-hydro-dynamjqueecoulfonctionement.it
ami naire =
mouv
régulier de courant
et ordonné couches
glissent l'es Vn
3¥ Vy -3¥
,
une sur les autres = =
;
Vr
-1,3f,
-
;
turbulent : déplacement particules Vr = Vxcoso +
Vy sino
Vz la ¥ =
-
irrégulier fluctuation
,
aléatoire
,
n' n' +
2
et x= ruso
y
=
rmio
Description Eulérienne mourir décrit : y =
pour tracer
:
4=4
par champs de vitesse Tifrit)
les lignes : .
Yo =
0 Yo > o t y ) >
Yoco (→ x
)
, ,
Lagrangienne : arc position initiale ouz ouz
T'tri ,
t)
lignes de courant équation de conservation :
d-n' ai:-O al
dj-n-djt-y-ds.gg
'
→ + diolfv ) =
0
j
lignes d' écoulement =
trajectoire
⇐ >
¥ + pdiv J' =
0
et incompressible
particules de fluide fluide compressible
lignes d' emission courbe de l'ens = .
dépend de la nature du phénomène
des particules passant en 1- point et conditions de l' écoulement
écoulement stationnaire : J' ind .
t incompressible : = 0 → div J' 0 =
→
lignes confondues
écoulement incitation nel : ààtv :-O
Accélération d' une particule
DJ
mouv .
et déformation
à
.EE?E--an+fIE-a?Yoniec#ee
T gradient se
ÀÀ) À
tenseur
È Èt )
de vitesse
121=6 1213¥ +3¥;)
= "+
+
eij
=
mou , =
,
( on troue les coordonnées )
'
de à
à =
IE -
Êt )
wij =
Effi -3¥;)
°Ë=Ô
.
Si écoulement stationnaire :
Vorticité Û Ünv ( citerne rotation
'
: =
Variation densité ou température : des particules sur elles -
même )
J' FT
¥ 3¥ = + J' Tt
,
=
¥ +
force de surface
conservation de la masse
fluide à l' ext du volume .
débit en volume : Q =
SÇJ ? d-s' DË E. d-s' ÈÂ ds ( force
= f.) = .
num
Pression d-Ép PÏDÎ ( isotrope )
Q
Ypj dj
en masse :
=
: = -
.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lauranardelli. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.56. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53022 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now