Table 1 Summary of model parameters. (BBB: Blood brain barrier).

From: Blood osmolytes such as sugar can drive brain fluid flows in a poroelastic model

Parameter

Symbol

Value

Reference

Fluid viscosity

\(\eta\)

10–3 Pa s

30

Poisson’s ratio

ν

0.4

31

Young’s modulus

E

1000 Pa

32,33

Inner radius

a

1 mm

(SI)

Outer radius

b

2 mm

(SI)

Screening length

\({\gamma }^{-1}\)

8.5 mm

(SI)

Permeability

\(\kappa\)

1.82 \(\times\) 10-15mm2

31

Relative BBB area

\(\widetilde{{A}_{b}}\)

5 \(\times\) 103 m-1

(SI)

BBB permeability

\({L}_{p}\)

5 \(\times\) 10-12 m(Pa s)-1

31