Table 4

List of symbols

Symbol

Quantity

SI Unit

cp

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

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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


Manca et al. Nanoscale Research Letters 2011 6:188   doi:10.1186/1556-276X-6-188

Open Data