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Investigating the Route to Flutter in a Pitch–Plunge Airfoil Subjected to Combined Flow Fluctuations

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Trends in Mechanical and Biomedical Design

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

The dynamics and response a pitch–plunge airfoil with cubic hardening nonlinearity in the pitch degree of freedom are investigated numerically. The aerodynamics is assumed to be linear and modeled using the unsteady aero-dynamical formulation. The flow is fluctuating in both the longitudinal and vertical directions. The fluctuating flow is mathematically modeled as a long time-scale random process. The mean flow speed is used as the bifurcation parameter, and response analysis is carried out by systematically varying the bifurcation parameter. The route to flutter is presented, and the role of noisy flow fluctuations in the same is analyzed by examining the dependency on noise intensity.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Shiv Nadar University, Greater Noida, India

    Nivedhithaa Santhakumar, Divyangi Singh & Venkatramani Jagadish

Authors
  1. Nivedhithaa Santhakumar
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  2. Divyangi Singh
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  3. Venkatramani Jagadish
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Corresponding author

Correspondence to Venkatramani Jagadish .

Editor information

Editors and Affiliations

  1. University of Johannesburg, Johannesburg, South Africa

    Esther Titilayo Akinlabi

  2. Indian Institute of Technology Madras, Chennai, Tamil Nadu, India

    P. Ramkumar

  3. Sri Sivasubramania Nadar (SSN) College of Engineering, Chennai, Tamil Nadu, India

    M. Selvaraj

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Cite this paper

Santhakumar, N., Singh, D., Jagadish, V. (2021). Investigating the Route to Flutter in a Pitch–Plunge Airfoil Subjected to Combined Flow Fluctuations. In: Akinlabi, E., Ramkumar, P., Selvaraj, M. (eds) Trends in Mechanical and Biomedical Design. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4488-0_32

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  • DOI: https://doi.org/10.1007/978-981-15-4488-0_32

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-4487-3

  • Online ISBN: 978-981-15-4488-0

  • eBook Packages: EngineeringEngineering (R0)

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