Lopsided Elastic Dumbbell Model

We derive the constitutive equation for a suspension of lopsided Hookean dumbbells. By lopsided, we mean that one bead is larger than the

other. We find that all results derived for symmetric Hookean dumbbells can be taken over for lopsided ones by replacing 2=ζ with

(1=ζ1)+(1=ζ2)., where ζ and ζ1 and ζ2 are the bead friction coefficients for the symmetric dumbbell beads and for the first and second beads

of the lopsided dumbbell, respectively.