Table 4 List of symbols
From: Numerical study of a confined slot impinging jet with nanofluids
Symbol | Quantity | SI Unit |
|---|---|---|
c p | Specific heat | J/kg K |
H | Channel height | m |
h | Heat transfer coefficient | W/m2 K |
k | Turbulent kinetic energy | J |
L | Channel length | m |
Nu | Nusselt number | Equation 11 |
P | Pressure | Pa |
PP | Required pumping power | W |
Pr = ν/a Prandtl number | ||
q | Impingement surface heat flux W/m2 | |
Re | Reynolds number | Equation 10 |
T | Temperature | K |
u | Velocity component | m/s |
| Volume flow rate | m3/s |
W | Jet width | m |
x, y | Spatial coordinates | m |
Greek symbols | ||
δ | Kronecher delta function | |
ε | Rate of dissipated turbulent | |
thermal energy | ||
ϕ | Nanoparticle concentration | |
λ | Thermal conductivity | W/mK |
μ | Dynamic viscosity | Pa s |
ρ | Density | kg/m3 |
σ | Turbulent Prandtl number | |
τ | Wall shear stress | kg/m |
ν | Kinematic viscosity | m2/s |
Subscripts | ||
0 | Stagnation point | |
a | Ambient | |
avg | Average | |
bf | Base fluid | |
f | Fluid | |
H | Heated | |
J | Jet | |
nf | Nanofluid | |
p | Particle | |
t | Turbulent | |