Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil

Dipanjan Majumdar; Chandan Bose; Sunetra Sarkar

doi:10.1007/978-981-15-8315-5_24

Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil

Dipanjan Majumdar^*, Chandan Bose, Sunetra Sarkar

^*Corresponding author for this work

Metallurgy and Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The present work focuses on investigating the underlying flow physics behind the transition from periodicity to aperiodicity in the flow past a harmonically plunging elliptic foil as the plunge amplitude is increased to a high value. Two-dimensional (2D) numerical simulations have been performed in the low Reynolds number regime using an in-house flow solver developed following the discrete forcing Immersed Boundary Method (IBM). To capture the aperiodic transition in the unsteady flow-field behind a flapping foil accurately, the boundary structures such as the leading-edge vortex and its evolution with time need to be resolved with maximum accuracy as they are the primary key to the manifestation of the aperiodic onset. Even a small discrepancy may result in a different dynamical state and lead to an erroneous prediction of the transition route. On the other hand, discrete forcing IBM is known to suffer from non-physical spurious oscillations of the velocity and pressure field near the boundary, which may affect the overall flow-field solution. In this regard, the present work investigates the efficacy of discrete forcing IBM in accurately capturing the transitional dynamics in the flow-field around a plunging elliptic foil by comparing its results with that of a well-validated body-fitted ALE solver.

Original language	English
Title of host publication	Recent Advances in Computational Mechanics and Simulations
Subtitle of host publication	Volume-II: Nano to Macro
Editors	Sandip Kumar Saha, Mousumi Mukherjee
Publisher	Springer
Pages	271-281
Number of pages	11
Edition	1
ISBN (Electronic)	9789811583155
ISBN (Print)	9789811583148, 9789811583179
DOIs	https://doi.org/10.1007/978-981-15-8315-5_24
Publication status	Published - 14 Nov 2020
Event	7th International Congress on Computational Mechanics and Simulation, ICCMS 2019 - Mandi, India Duration: 11 Dec 2019 → 13 Dec 2019

Publication series

Name	Lecture Notes in Mechanical Engineering
ISSN (Print)	2195-4356
ISSN (Electronic)	2195-4364

Conference

Conference	7th International Congress on Computational Mechanics and Simulation, ICCMS 2019
Country/Territory	India
City	Mandi
Period	11/12/19 → 13/12/19

Bibliographical note

Publisher Copyright:
© 2021, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Keywords

Immersed Boundary Method
mass source/sink
momentum forcing
plunging elliptic foil
transition to chaos

ASJC Scopus subject areas

Automotive Engineering
Aerospace Engineering
Mechanical Engineering
Fluid Flow and Transfer Processes

Access to Document

10.1007/978-981-15-8315-5_24Licence: None: All rights reserved

Cite this

Majumdar, D., Bose, C., & Sarkar, S. (2020). Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil. In S. K. Saha, & M. Mukherjee (Eds.), Recent Advances in Computational Mechanics and Simulations: Volume-II: Nano to Macro (1 ed., pp. 271-281). (Lecture Notes in Mechanical Engineering). Springer. https://doi.org/10.1007/978-981-15-8315-5_24

Majumdar, Dipanjan ; Bose, Chandan ; Sarkar, Sunetra. / Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil. Recent Advances in Computational Mechanics and Simulations: Volume-II: Nano to Macro. editor / Sandip Kumar Saha ; Mousumi Mukherjee. 1. ed. Springer, 2020. pp. 271-281 (Lecture Notes in Mechanical Engineering).

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abstract = "The present work focuses on investigating the underlying flow physics behind the transition from periodicity to aperiodicity in the flow past a harmonically plunging elliptic foil as the plunge amplitude is increased to a high value. Two-dimensional (2D) numerical simulations have been performed in the low Reynolds number regime using an in-house flow solver developed following the discrete forcing Immersed Boundary Method (IBM). To capture the aperiodic transition in the unsteady flow-field behind a flapping foil accurately, the boundary structures such as the leading-edge vortex and its evolution with time need to be resolved with maximum accuracy as they are the primary key to the manifestation of the aperiodic onset. Even a small discrepancy may result in a different dynamical state and lead to an erroneous prediction of the transition route. On the other hand, discrete forcing IBM is known to suffer from non-physical spurious oscillations of the velocity and pressure field near the boundary, which may affect the overall flow-field solution. In this regard, the present work investigates the efficacy of discrete forcing IBM in accurately capturing the transitional dynamics in the flow-field around a plunging elliptic foil by comparing its results with that of a well-validated body-fitted ALE solver.",

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Majumdar, D, Bose, C & Sarkar, S 2020, Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil. in SK Saha & M Mukherjee (eds), Recent Advances in Computational Mechanics and Simulations: Volume-II: Nano to Macro. 1 edn, Lecture Notes in Mechanical Engineering, Springer, pp. 271-281, 7th International Congress on Computational Mechanics and Simulation, ICCMS 2019, Mandi, India, 11/12/19. https://doi.org/10.1007/978-981-15-8315-5_24

Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil. / Majumdar, Dipanjan; Bose, Chandan; Sarkar, Sunetra.
Recent Advances in Computational Mechanics and Simulations: Volume-II: Nano to Macro. ed. / Sandip Kumar Saha; Mousumi Mukherjee. 1. ed. Springer, 2020. p. 271-281 (Lecture Notes in Mechanical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Majumdar D, Bose C, Sarkar S. Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil. In Saha SK, Mukherjee M, editors, Recent Advances in Computational Mechanics and Simulations: Volume-II: Nano to Macro. 1 ed. Springer. 2020. p. 271-281. (Lecture Notes in Mechanical Engineering). doi: 10.1007/978-981-15-8315-5_24

Probing into the Efficacy of Discrete Forcing Immersed Boundary Method in Capturing the Aperiodic Transition in the Wake of a Flapping Airfoil

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

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Cite this