these simulation numerique et modelisation de l'ecoulement autour ...

ρ Mass density, kg/m 3
P
T
V i
τ ik
δ ik
V j
ρ j
q
ϕ
Pressure, Pa
Temperature, K
ith component of the velocity vector
Nomenclature
Viscous stress tensor µ( ∂V i
∂x k
+ ∂V k
∂x i
) − 2 3 µ∂V l
∂x l
δ ik
Kronecker symbol 1 if i = k, 0 else
Bulk velocity in the hole, m/s
Mass density in the hole, m/s
Mass flow rate through one hole, g/s
Mass flow rate per total surface unit
U Streamwise velocity, i.e. V 1
V Vertical velocity, i.e. V 2
q
S W
, g/s/m −2
W Spanwise velocity, i.e. V 3
U 1 Streamwise velocity at the center of channel 1
U 2 Streamwise velocity at the center of channel 2
Re
x i
Reynolds number
ith coordinate
x Streamwise coordinate, i.e. x 1
⃗e x Unit vector in the streamwise direction
y Vertical coordinate, i.e. x 2
⃗e y Unit vector in the vertical direction
z Spanwise coordinate, i.e. x 3
⃗n Outward normal vector
S
α
C D
σ
d
h
Subscript
h
jet
s
W
Wall surface
hole angle with respect to the wall
Discharge coefficient through the plate
Porosity
Aperture diameter, m
Channel height m
Relative to the hole
Relative to the jet
Relative to the solid part of the perforated plate
Relative to the total perforated plate (aperture and solid part)
1 Relative to channel 1 (injection channel)
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