[Mol.Phys.26(1973)1475]
An external force
is introduced in the
equations of motion according to

(8.15) 
(Note:
and
which fulfills 8.12.)
This will eventually lead to an average velocity profile which
theoretically should look like

(8.16) 
where .
Fitting the actual velocity profile to this expression we find
and from that the dependent viscosity:

(8.17) 
Repeating the calculation for several values of and extrapolating
to
we find an estimate for
Note:
The applied force does work against the viscous forces, thus inducing
an undesirable temperature rise.
F. J. Vesely / University of Vienna