How fast does an asymmetric body falling through water rotate?

Question

When a stone shaped a bit like a propeller sinks through water, it rotates.

              How is the rotation speed related to the shape of the body? 

This simple question has surprisingly few research publications. I have big difficulties finding literature on this topic. The effect has been studied by various people in theoretical fluid dynamics, some even performed experiments, but no numerical approximations seem to exist in the literature.

The rotation speed somehow depends on the chirality of the shape of the stone. But this is already the first obstacle: there is no easy way to define the chirality of a shape. The next issue is to relate the chirality with the rotation speed. All this appears to be beyond present research.

This is also of interest because the phase rotation of a moving elementary particle could be similar to this effect.

Any suggestion is welcome.