Letter

Significance

Unit

d

disk diameter

m

D

impeller diameter

m

d_s

shaft diameter

m

C

turbine position

m

a

Blade width

m

H

vessel tank height

m

b

blade height

m

k

turbulent kinetic energy

m²∙s^-2

t

time

s

p

dimensionless pressure term

r

dimensionless radial coordinate

z

dimensionless axial coordinate

U_r

dimensionless radial velocity components

V

dimensionless angular velocity components

W

dimensionless axial velocity components

G

turbulent kinetic energy production

Re

Reynolds number