lucasdynamique.py

Created by klfraimbow

Created on March 27, 2022

679 Bytes

p=m/V     me=ms
          pe*Ve=ps*Vs
          Qe=Qs
1000L = 1m**3
Ve*Se=Vs*Ss
Qm(kg/s)=p(kg/m**3)*Qv(m**3/s)

Ebernoulli: P1/pg  + V1**2/2g + Z1 = P2/pg  + V2**2/2g + Z2 

TD1:

1-
S1>>S2 donc V1<<V2 
V1 negligeable
  
  P1/pg  + V1**2/2g + Z1 = P2/pg  + V2**2/2g + Z2

-> * pg

  P1 + p/2 * V1**2 + pgZ1 = P2 + p/2 * V2**2 + pgZ2

P1=P2=Patm

-> P1 + p/2 * V1**2 + pgZ1 = P2 + p/2 * V2**2 + pgZ2

2- 

 V1*S1 = V2*S2
       = V1*4*S2
S1= 4*S2
pi*R1**2 = 4pi *R2**2
(R1/R2)**2 = 4 -> R1/R2 = 2 

Tan a = R1/R2 / L = 25/L
tan15
L= 25/tan15 = 93mm

3- V2=Qv/S2                pi*d**2 / 4

P1=P2
V1**2 = 0    V2= sqrt2gH   H= V2/2g

4- V1=V2* (d/D)**2
F=P*S

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