9KiB, 671x189, spiral convect.png View SameGoogleiqdbSauceNAO Brainletdynamic bbbbbbbbbb Sat 26 Jun 06:00:09 2021 No.13326284 ViewReplyOriginalReport Quoted By: Supposed the closer the spiral from the heat source the faster it rotates. Whats wrong with pic related? How do you explain this in thermo or fluid.