Investigation of vortex ring formation with account of generator piston motion

Winter School on Continuous Media Mechanics

Khramtsov, I.V.^1 ; Palchikovskiy, V.V.^1 ; Siner, A.A.^1 ; Bersenev, Yu. V.^1

Perm National Research Polytechnic University, Komsomolsky prospect, 29, Perm

614990, Russia^1

关键词: Axisymmetric problems;    Elementary objects;    FLUENT software;    Law of motions;    Piston motion;    Self-similar;    Turbulent vortices;    Vortex rings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/208/1/012045/pdf
DOI  :  10.1088/1757-899X/208/1/012045

来源: IOP

【 摘 要 】

The formation and dynamics of such an elementary object of fluid dynamics as a vortex ring was investigated. Intense turbulent vortex rings created by a piston generator were considered. For qualitative determination of vortex ring properties, the law of motion for the generator's piston was experimentally established. This law was used in the numerical simulation, which was performed for the axisymmetric problem formulation with the use of ANSYS Fluent software. The obtained results correspond to the self-similar law of vortex ring motion and experimental results.