B0	magnetic induction (Wb/m2)
Be	Bejan number
Cp	specific heat at constant pressure (J/kg K)
g	gravity (m2/s)
Gr	Grashof number
Ha	Hartman number
k	thermal conductivity of air (W/m K)
L	dimension of the cavity (m)
N	undulation
Nu	average Nusselt number
p	pressure (Pa)
P	non-dimensional pressure
Pr	Prandtl number
Re	Reynolds number
Ri	Richardson number
S	entropy (J/K)
T	temperature (K)
Uo	moving lid velocity (m/s)
u, v	velocity components (m/s)
U, V	non-dimensional velocity components
x, y	coordinates (m)
X, Y	non-dimensional coordinate
Greek Symbols
α	thermal diffusivity (m2/s)
β	thermal expansion coefficient (1/K)
γ	rotation angle (deg)
φ	nanoparticles volume fraction
μ	dynamic viscosity (kg m/s)
θ	dimensionless temperature
ρ	density of fluid (kg/m3)
σ	fluid electrical conductivity (S/m)
ψ	irreversibly
Subscripts
Gen	generation
nb	base fluid
nf	nanofluid
avg	average
c	cold
h	hot
s	surface