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. 2019 Jun 28;21(7):642. doi: 10.3390/e21070642
u: v velocity components
x, y coordinate
Kr rate of chemical reaction
K permeability parameter
hf convective parameter
B1 Boit number
Nr buoyancy ratio parameter
V0 suction/injection parameter
T, Tf temperature
Dn diffusivity of microorganisms
Pr Prandtl number
Cp specific heat
uw stretching velocity along x-direction
B0 magnetic field of strength
Dm Brownian diffusion coefficient
Cf surface drag force
Nux Nusselt number
Pe bioconvection Péclet number
Cr chemical reaction parameter
Sc Schmidt number
Wc maximum cell swimming speed
k1 porous parameter
Rb bioconvection Rayleigh number
Rd radiation parameter
Rax local Rayleigh number
NG entropy generation number
Lb bioconvection Lewis number
M magnetic parameter
Greek Symbols
ρCNT, ρf density
σ* Stephan-Boltzmann constant
μnf, μf dynamic viscosity
τxy shear stress
αnf modified thermal diffusivity
(ρCp)nf,(ρCp)f heat capacity
kf, knf, k thermal conductivity
ϕ solid volume fraction of nanofluid
η a scaled boundary-layer coordinate
Ψ stream function
qw(x) the surface heat flux of nanoliquid film
β thermal expansion coefficient
f dimensionless stream function
θ dimensionless temperature
δ bioconvection constant
α temperature difference parameter
λ diffusive constant parameter
ζ concentration difference