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国际流体力学研究期刊
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN 打印: 2152-5102
ISSN 在线: 2152-5110

国际流体力学研究期刊

DOI: 10.1615/InterJFluidMechRes.v37.i2.30
pages 127-148

Kinematics of a Fluid Particle due to Interaction of Fixed Inviscid Vortex Filaments in Presence of External Translation and Pulsation

S. Jayavel
Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai-600036, India
Shaligram Tiwari
Department of Mechanical Engineering, Indian Institute of Technology Madras Chennai, India, 600036
Gautam Biswas
Department of Mechanical Engineering, Indian Institute of Technology Guwahati, 781039 India
Assciate Editor of Journal of Heat Transfer (ASME)
Mihir Sen
Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, U.S.A.

ABSTRACT

Investigations are carried out to study the kinematics of a Lagrangian fluid particle due to interaction of an inviscid vortex system. The vortex system considers three inviscid and fixed vortex filaments in various configurations. Effect of external translation and pulsation has been studied on the vortex field to identify the vortex configuration and the nature of external motion which gives rise to maximum enhancement in particle mixing. The non-linear dynamical system governing kinematics of the Lagrangian fluid particle for various vortex configurations has been analyzed using Poincare maps, autocorrelation and Lyapunov exponents with an aim to find possible chaotic particle trajectories. Fixed points of the dynamical system associated with poor transport properties have been identified.


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