Please read these posts if you are not familiar with the V-E-J Tidal Torquing model:
http://astroclimateconnection.blogspot.com.au/2012/03/planetary-spin-orbit-coupling-model-for.html
http://astroclimateconnection.blogspot.com.au/2012/03/short-comings-of-planetary-spin-orbit.html
http://astroclimateconnection.blogspot.com.au/2012/04/why-does-solar-cycle-keep-re.html
http://astroclimateconnection.blogspot.com.au/2012/04/v-e-j-tidal-torquing-model-maunder.html
occur tangentially to the surface of the Sun, if the gravitational
force of Jupiter were to tug upon the combined tidal bulge
that is induced in the convective layer of the Sun by the
periodic alignments of Venus and the Earth (every 1.599
years). In essence, whenever the cumulative acceleration
is increasing (i.e its slope is positive), the tugging gravitational
force of Jupiter increase the rotation rate of a layer of plasma
in the Sun’s convective layer [assumed to be a dynamically
decoupled layer ~ 0.02 % of the mass of the Sun]. Similarly,
whenever the cumulative acceleration is decreasing (i.e its
slope is negative), the tugging gravitational force of Jupiter
decrease the rotation rate of a layer of plasma in the Sun’s
convective layer.
(more…)