Bernoulli Loops in Smoke Rings

Kern E. Kenyon
2019 Natural Science  
Bernoulli's law is applied to the closed streamlines of a smoke ring, and the centrifugal force of the curved flow is balanced by a pressure gradient. Two equations in two unknowns, pressure and velocity, are combined into one equation in one unknown, velocity. Solving the governing equation algebraically produces a radial shear in the velocity such that the speed decreases outward inversely as the radius increases, which is the main result. Measurements are needed to verify the predicted
more » ... the predicted structure of the velocity field.
doi:10.4236/ns.2019.1110030 fatcat:f6um2754fveylasc47vagcj5su