In the two clips below we can see 2 different set-ups; (a) without a spiraled profile and (b) with. First of all the torus is given a profile in this example that of a 3 sided triangle, otherwise it wouldn't have any grip.
In this first clip, a non-spiraled torus (a) leaves a large footprint as it periodic changes the inner opening from wide to narrow. The colors show the velocity of the fluid (Red <- vs. Blue ->), and the results indicate that the Torus has a 'bumpy' way of moving forward through the Aether.
In the second clip with the spiraled torus, The current through the center ring seems to be rather constant (red) as it is the case for the 'outsides' that are constant blue. To left there is also a constant light blueish flow observable. This would indicate that a spiraled Torus would move rather fluently through the dense Aether.