Reacting Flows: Instabilities

Presentations

• Observations of vortex lock-in in an acoustically excited flame

  ORAL

  Nov. 22, 2022, 8:00 AM – Nov. 22, 2022, 8:13 AM

  Presenters

  • Eirik Æsøy

    • Norwegian Univ Tech (NTNU)
    • Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway

  Authors

  • Eirik Æsøy

    • Norwegian Univ Tech (NTNU)
    • Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway

  • Girish K Jankee

    • Norwegian Univ Tech (NTNU)

  • Srikar Yadala Venkata

    • Norwegian Univ Tech (NTNU)
    • Norwegian University of Science & Technology

  • Nicholas A Worth

    • Norwegian Univ Tech (NTNU)

  • James R Dawson

    • Univ of Cambridge
    • Norwegian Univ Tech (NTNU)
    • Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
    • Norwegian University of Science and Technology (NTNU)

  View abstract →

• Effect of differential diffusion on the linear dynamics of premixed flames in swirling jets

  ORAL

  Nov. 22, 2022, 8:13 AM – Nov. 22, 2022, 8:26 AM

  Presenters

  • Christopher M Douglas

    • LadHyX, Ecole Polytechnique
    • LadHyX, CNRS, Ecole Polytechnique, IPP

  Authors

  • Christopher M Douglas

    • LadHyX, Ecole Polytechnique
    • LadHyX, CNRS, Ecole Polytechnique, IPP

  • Wolfgang Polifke

    • Technische Universität München
    • Professorship of Thermo-Fluid Dynamics, TU Munich, Boltzmannstr. 15, D-85747, Garching, Germany

  • Lutz Lesshafft

    • LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris
    • LadHyX

  View abstract →

• Acoustically Coupled Combustion Dynamics of Laminar Coaxial Methane-Air Jets

  ORAL

  Nov. 22, 2022, 8:26 AM – Nov. 22, 2022, 8:39 AM

  Presenters

  • Andres Vargas

    • University of California, Los Angeles

  Authors

  • Andres Vargas

    • University of California, Los Angeles

  • Arin Hayrapetyan

    • University of California, Los Angeles

  • Ann R Karagozian

    • University of California, Los Angeles

  View abstract →

• Image Denoising for Acoustically Coupled Combustion using Neural Networks and a Convolutional Autoencoder

  ORAL

  Nov. 22, 2022, 8:39 AM – Nov. 22, 2022, 8:52 AM

  Presenters

  • Arin Hayrapetyan

    • University of California, Los Angeles

  Authors

  • Arin Hayrapetyan

    • University of California, Los Angeles

  • Andres Vargas

    • University of California, Los Angeles

  • Ann R Karagozian

    • University of California, Los Angeles

  View abstract →

• Under-Sampled Data-Based Reduced Order Models for Periodic Dynamical Systems

  ORAL

  Nov. 22, 2022, 8:52 AM – Nov. 22, 2022, 9:05 AM

  Presenters

  • Davi S Lettieri

    • Universidade Federal Fluminense

  Authors

  • Davi S Lettieri

    • Universidade Federal Fluminense

  • Andres Vargas

    • University of California, Los Angeles

  • Ann R Karagozian

    • University of California, Los Angeles

  • Leonardo Alves

    • Universidade Federal Fluminense

  View abstract →

• Time-resolved prediction of Jet A spray using time-resolved flame chemiluminescence along with scarce Mie scattering and ILIDS data

  ORAL

  Nov. 22, 2022, 9:05 AM – Nov. 22, 2022, 9:18 AM

  Presenters

  • Liam Krebbers

    • The University of British Columbia

  Authors

  • Liam Krebbers

    • The University of British Columbia

  • Sajjad Mohammadnejad

    • The University of British Columbia

  • Ali Rostami

    • The University of British Columbia

  • Sina Kheirkhah

    • The University of British Columbia

  View abstract →

• Classification of different regimes of ethanol pool fires

  ORAL

  Nov. 22, 2022, 9:18 AM – Nov. 22, 2022, 9:31 AM

  Presenters

  • Brandon Li

    • University of California, San Diego

  Authors

  • Brandon Li

    • University of California, San Diego

  • Wilfried Coenen

    • Univ Carlos III De Madrid

  • Sankaran Ramanarayanan

    • UCSD

  • Antonio L Sanchez

    • UCSD
    • University of California, San Diego

  • Forman A Williams

    • UCSD

  View abstract →

• Reaction-induced Kelvin-Helmholtz roll-ups

  ORAL

  Nov. 22, 2022, 9:31 AM – Nov. 22, 2022, 9:44 AM

  Publication: [1] Maharana, S. N., and Mishra, M, Reaction induced interfacial instability of miscible fluids in a
  channel (2021). J. Fluid Mech. 925, A3.
  [2] Maharana, S. N., and Mishra, M, Effects of low and high viscous product on Kelvin-Helmholtz
  instability triggered by A + B → C type reaction (2022). Phys. Fluids 34, 012104
  [3] Maharana, S. N., and Mishra, M, Parametric study of shear instabilities induced by a chemical reaction in miscible two-layered channel flow (ready to submit).

  Presenters

  • Surya N Maharana

    • Indian Institute of Technology (IIT) Ropar

  Authors

  • Surya N Maharana

    • Indian Institute of Technology (IIT) Ropar

  • Manoranjan Mishra

    • Indian Institute of Technology Ropar

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• Influence of equivalence ratio on combustion instability of a low-swirl flame under lean-hydrogen conditions.

  ORAL

  Nov. 22, 2022, 9:44 AM – Nov. 22, 2022, 9:57 AM

  Presenters

  • Jun Nagao

    • Kyoto University
    • Kyoto Univ

  Authors

  • Jun Nagao

    • Kyoto University
    • Kyoto Univ

  • Abhishek L Pillai

    • Kyoto University

  • Takeshi Shoji

    • JAXA
    • Japan Aerospace Exploration Agency

  • Shigeru Tachibana

    • JAXA
    • Japan Aerospace Exploration Agency

  • Takeshi Yokomori

    • Keio University

  • Ryoichi Kurose

    • Kyoto Univ

  View abstract →

• Three-dimensional structure of the underlying flow field of a bluff-body-stabilised flame forced by multiple convective modes

  ORAL

  Nov. 22, 2022, 9:57 AM – Nov. 22, 2022, 10:10 AM

  Presenters

  • Srikar Yadala Venkata

    • Norwegian Univ Tech (NTNU)
    • Norwegian University of Science & Technology

  Authors

  • Srikar Yadala Venkata

    • Norwegian Univ Tech (NTNU)
    • Norwegian University of Science & Technology

  • Girish K Jankee

    • Norwegian Univ Tech (NTNU)

  • Eirik Æsøy

    • Norwegian Univ Tech (NTNU)
    • Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway

  • James R Dawson

    • Univ of Cambridge
    • Norwegian Univ Tech (NTNU)
    • Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
    • Norwegian University of Science and Technology (NTNU)

  • Nicholas A Worth

    • Norwegian Univ Tech (NTNU)

  View abstract →

• Large Eddy Simulation of Hydrogen Flame Stabilization in a Reheat Gas Turbine Combustor

  ORAL

  Nov. 22, 2022, 10:10 AM – Nov. 22, 2022, 10:23 AM

  Presenters

  • Ethan Cartwright

    • The Ohio State University

  Authors

  • Ethan Cartwright

    • The Ohio State University

  • Chao Xu

    • Argonne National Laboratory
    • Transportation and Power Systems, Argonne National Laboratory, Lemont, IL, 60439, USA
    • Argonne National Labs

  View abstract →

• Differential diffusion effects on turbulent premixed bluff-body stabilized flames near lean blow-off

  ORAL

  Nov. 22, 2022, 10:23 AM – Nov. 22, 2022, 10:36 AM

  Presenters

  • Tong Su

    • Norwegian Univ Tech (NTNU)

  Authors

  • Tong Su

    • Norwegian Univ Tech (NTNU)

  • Nicholas A Worth

    • Norwegian Univ Tech (NTNU)

  • James R Dawson

    • Univ of Cambridge
    • Norwegian Univ Tech (NTNU)
    • Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
    • Norwegian University of Science and Technology (NTNU)

  • Samuel Wiseman

    • Norwegian Univ Tech (NTNU)

  View abstract →