Symbol	Unit	Description
$\mathrm{b}$	$\mathsf{\mu }\mathrm{m}$	Width of the microfluidic channel
$\mathrm{h}$	$\mathsf{\mu }\mathrm{m}$	Height of the microfluidic channel
$\mathrm{L}$	$\mathsf{\mu }\mathrm{m}$	Length of the microfluidic channel
D	$\mathsf{\mu }\mathrm{m}$	Equivalent diameter of the microfluidic channel
p	${\mathrm{N}/\mathrm{m}}^2$	Oil pressure
$\tau$	${\mathrm{N}/\mathrm{m}}^2$	Shear stress
$\mathrm{q}$	${\mathrm{m}}^3/\mathrm{s}$	Oil flow
${\mathrm{d}}_{\mathrm{p}}$	$\mathsf{\mu }\mathrm{m}$	Wear particle size
$\mathrm{Re}$	/	Reynolds number
${\rho }_{\mathrm{f}}$	${\mathrm{kg}/\mathrm{m}}^3$	Oil density
${\rho }_{\mathrm{p}}$	${\mathrm{kg}/\mathrm{m}}^3$	Particle density
$\mu$	$\mathrm{kg}·\mathrm{m}/\mathrm{s}$	Oil dynamic viscosity coefficient
$\vartheta$	${\mathrm{m}}^2/\mathrm{s}$	Oil kinematic viscosity coefficient
$\mathrm{u}$	$\mathrm{m}/\mathrm{s}$	Oil instantaneous velocity
$\overline{u}$	$\mathrm{m}/\mathrm{s}$	Oil average velocity
$u_p$	$\mathrm{m}/\mathrm{s}$	Particle velocity
$\mathrm{t}$	s	Time
$\mathrm{g}$	${\mathrm{m}/\mathrm{s}}^2$	Acceleration of gravity
${\mathrm{F}}_{\mathrm{g}}$	$\mathrm{N}$	Gravity
${\mathrm{F}}_{\mathrm{bu}}$	$\mathrm{N}$	Buoyancy
${\mathrm{F}}_{\mathrm{D}}$	$\mathrm{N}$	Drag force
${\mathrm{F}}_{\mathrm{M}}$	$\mathrm{N}$	Additional mass force
${\mathrm{F}}_{\mathrm{B}}$	$\mathrm{N}$	Basset force
${\mathrm{F}}_{\mathrm{m}}$	$\mathrm{N}$	Magnus force
${\mathrm{F}}_{\mathrm{s}}$	$\mathrm{N}$	Saffman force