Brinkmans equation

1. Jul 12, 2007

dala

Does somebody know what are the units of the parameters used in brinkmans equation?

2. Jul 17, 2007

Andy Resnick

dala wrote:
> Does somebody know what are the units of the parameters used in
> brinkmans equation?

If, by Brinkman's equation, you mean something like:

0 = -@P/@z + mu*Del^2(U) - k*U, meaning Poiseuille flow with an extra
friction term, then the parameter 'k' is a coefficient of friction,
with units of viscosity/area. 'mu' is the dynamic viscosity.

--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University

3. Jul 23, 2007

dala

thanks for the reply Andy.. But the tunneling equation that i'm concerned about is the tunneling one..

The equations are:
G(V)/G(0)=1-(Aodelta phi)/(16 phi bar^(3/2))*eV+(9Ao^2/128 phi bar)(eV)^2
and
Ao=4(2m)^1/2 * d/3h

The equations are the equations 7 and 8 of this paper
"Tunneling Conductance of Asymmetrical Barrieers", W.F. Brinkman, R.C. Dynes and J.M Rowell
i want to know the units of these parameters used in this equation