Transition to periodic behaviour of flow past a circular cylinder under the action of fluidic actuation in the transitional regime

Wasim Sarwar; Fernando Mellibovsky; Md Mahbub Alam; Farhan Zafar

doi:10.3390/en14165069

Transition to periodic behaviour of flow past a circular cylinder under the action of fluidic actuation in the transitional regime

Wasim Sarwar
, Fernando Mellibovsky
, Md Mahbub Alam^*
, Farhan Zafar

^*Corresponding author for this work

Polytechnic University of Catalonia
Harbin Institute of Technology Shenzhen

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This study focuses on the numerical investigation of the underlying mechanism of transition from chaotic to periodic dynamics of circular cylinder wake under the action of time-dependent fluidic actuation at the Reynolds number = 2000. The forcing is realized by blowing and suction from the slits located at ±90^◦ on the top and bottom surfaces of the cylinder. The inverse period-doubling cascade is the underlying physical mechanism underpinning the wake transition from mild chaos to perfectly periodic dynamics in the spanwise-independent, time-dependent forcing at twice the natural vortex-shedding frequency.

Original language	English
Article number	5069
Journal	Energies
Volume	14
Issue number	16
DOIs	https://doi.org/10.3390/en14165069
State	Published - 2 Aug 2021
Externally published	Yes

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SDG 7 Affordable and Clean Energy

Keywords

Dynamical systems
Period doubling bifurcation
Transitional flow

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10.3390/en14165069

Cite this

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title = "Transition to periodic behaviour of flow past a circular cylinder under the action of fluidic actuation in the transitional regime",

abstract = "This study focuses on the numerical investigation of the underlying mechanism of transition from chaotic to periodic dynamics of circular cylinder wake under the action of time-dependent fluidic actuation at the Reynolds number = 2000. The forcing is realized by blowing and suction from the slits located at ±90◦ on the top and bottom surfaces of the cylinder. The inverse period-doubling cascade is the underlying physical mechanism underpinning the wake transition from mild chaos to perfectly periodic dynamics in the spanwise-independent, time-dependent forcing at twice the natural vortex-shedding frequency.",

keywords = "Dynamical systems, Period doubling bifurcation, Transitional flow",

author = "Wasim Sarwar and Fernando Mellibovsky and Alam, \{Md Mahbub\} and Farhan Zafar",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = aug,

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doi = "10.3390/en14165069",

language = "英语",

volume = "14",

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T1 - Transition to periodic behaviour of flow past a circular cylinder under the action of fluidic actuation in the transitional regime

AU - Sarwar, Wasim

AU - Mellibovsky, Fernando

AU - Alam, Md Mahbub

AU - Zafar, Farhan

PY - 2021/8/2

Y1 - 2021/8/2

N2 - This study focuses on the numerical investigation of the underlying mechanism of transition from chaotic to periodic dynamics of circular cylinder wake under the action of time-dependent fluidic actuation at the Reynolds number = 2000. The forcing is realized by blowing and suction from the slits located at ±90◦ on the top and bottom surfaces of the cylinder. The inverse period-doubling cascade is the underlying physical mechanism underpinning the wake transition from mild chaos to perfectly periodic dynamics in the spanwise-independent, time-dependent forcing at twice the natural vortex-shedding frequency.

AB - This study focuses on the numerical investigation of the underlying mechanism of transition from chaotic to periodic dynamics of circular cylinder wake under the action of time-dependent fluidic actuation at the Reynolds number = 2000. The forcing is realized by blowing and suction from the slits located at ±90◦ on the top and bottom surfaces of the cylinder. The inverse period-doubling cascade is the underlying physical mechanism underpinning the wake transition from mild chaos to perfectly periodic dynamics in the spanwise-independent, time-dependent forcing at twice the natural vortex-shedding frequency.

KW - Dynamical systems

KW - Period doubling bifurcation

KW - Transitional flow

UR - https://www.scopus.com/pages/publications/85113285232

U2 - 10.3390/en14165069

DO - 10.3390/en14165069

M3 - 文章

AN - SCOPUS:85113285232

SN - 1996-1073

VL - 14

JO - Energies

JF - Energies

IS - 16

M1 - 5069

ER -

Transition to periodic behaviour of flow past a circular cylinder under the action of fluidic actuation in the transitional regime

Abstract

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Keywords

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