Table 1 Glossary of symbols used in this manuscript

C

concentration

mol/ m³

D

diffusion coefficient

m²/s

R

gas constant

J/ (mol.K)

e

electron charge

C

E

Nernst potential

V

F

Faraday constant

C/mol

h

extracellular cleft width

m

I_max

maximum Na/K ATPase pump current density

A/cm²

I_p

Na/K ATPase pump current density

A/cm²

j_m

transmembrane flux

mol/ (m²s)

g

conductivity per membrane area

S/m²

k_B

Boltzmann constant

J/K

K_0.5

half-maximal concentrations

mol/ m³

L_s

surface hydraulic permeability

m³/(N.s)

L_p

intercellular hydraulic permeability

m³/(N.s)

Os

osmolarity

Osm/L

p

pressure

Pas

P_m

membrane solute permeability

m/s

r

equatorial radius of the model

m

a

posterior radius of the model

m

b

anterior radius of the model

m

s_α

solute source

mol/(m³s)

s

fluid mass source

1/m

T

temperature

K

V_m

transmembrane potential

V

f

body force

N/Kg

z

valence

-

α

solute species

-

ε₀

permittivity of vacuum

F/m

ε_r

dielectric constant

S/m

ζ

zeta potential (cell membrane potential)

V

λ_D

Debye length

m

Λ

volume fraction

-

μ

dynamic viscosity

N.s/m²

ρ

mass density

Kg/m³

ρ_m

membrane density

1/m

σ

membrane reflectance

-

ϕ

potential

V

u

velocity

m/s