Question

MECH 6630 Advanced Fluid Mechanics

Department of Mechanical Engineering

Problem 9 Suppose a vortex ring drawn below Indicate velocity vector direction at both A & B points Draw its expected trajectory/direction of movement/shape and explain why. Ground

Answer 1

Ground vébeiby Valore disertion Shafe - Ellipticle Vartices - Vortex ring formed by ejecting fluid from a Circular tube This Indicates that the flow will be instable and instabilities are often dresponsible for large cyclonic vartio 1) Even a very slight waviness in each Ventex, as it afforeces the grownel can trigger a large pressure gradient

. Vortex fair hight is below a Criticle Value If the initial them the Crow of ground Crow instabiliday when the electio TAU