Reacting Flows: Instabilities

Presentations

• Propane-air Markstein numbers from wavenumber measurements of self-excited thermoacoustic parametric instability

  ORAL

  Nov. 25, 2024, 3:50 PM – Nov. 25, 2024, 4:03 PM

  Presenters

  • Jerric R Delfin

    Hokkaido University, University of the Philippines Los Baños

  Authors

  • Jerric R Delfin

    Hokkaido University, University of the Philippines Los Baños

  • Nozomu Hashimoto

    Hokkaido University

  • Osamu Fujita

    Hokkaido University

  View abstract →

• Adaptive control of thermoacoustic instabilities using a reinforcement learning approach: an experimental demonstration on a methane/hydrogen turbulent flame

  ORAL

  Nov. 25, 2024, 4:03 PM – Nov. 25, 2024, 4:16 PM

  Publication: Planned paper:
  1. Adaptive control of thermoacoustic instabilities using a reinforcement learning approach

  Presenters

  • Bassem Akoush

    Stanford University

  Authors

  • Bassem Akoush

    Stanford University

  • Guillaume Vignat

    Stanford University

  • Wai Tong Chung

    Stanford University

  • Matthias Ihme

    Stanford University

  View abstract →

• Effect of swirler-induced perturbations on the thermoacoustic source term

  ORAL

  Nov. 25, 2024, 4:16 PM – Nov. 25, 2024, 4:29 PM

  Presenters

  • Liam Krebbers

    University of British Columbia

  Authors

  • Liam Krebbers

    University of British Columbia

  • Vishal Jangra

    The University of British Columbia

  • Sina Kheirkhah

    The University of British Columbia

  View abstract →

• Acoustically Coupled Single and Coaxial Fuel Jet Combustion at a Pressure Antinode

  ORAL

  Nov. 25, 2024, 4:29 PM – Nov. 25, 2024, 4:42 PM

  Presenters

  • Arin Hayrapetyan

    University of California, Los Angeles

  Authors

  • Arin Hayrapetyan

    University of California, Los Angeles

  • Daniel Oviedo

    University of California, Los Angeles

  • Qiyuan Wu

    University of California, Los Angeles

  • Ann Renee Karagozian

    University of California, Los Angeles

  View abstract →

• Abstract Withdrawn

  ORAL Withdrawn

  Nov. 25, 2024, 4:42 PM – Nov. 25, 2024, 4:55 PM

  View abstract →

• Enstrophy Transport During Longitudinal Combustion Instability in a High-Pressure Rocket Combustor

  ORAL

  Nov. 25, 2024, 4:55 PM – Nov. 25, 2024, 5:08 PM

  Publication: Veeraraghava Raju Hasti, Reetesh Ranjan, "High-Fidelity Numerical Simulation of Longitudinal Thermoacoustic Instability in a High-Pressure Subscale Rocket Combustor", Aerospace Science and Technology (Submitted)

  Presenters

  • Veeraraghava Raju Hasti

    University of Central Florida

  Authors

  • Veeraraghava Raju Hasti

    University of Central Florida

  • Reetesh Ranjan

    University of Tennessee at Chattanooga

  View abstract →

• Dynamics of planar flames within closed channels

  ORAL

  Nov. 25, 2024, 5:08 PM – Nov. 25, 2024, 5:21 PM

  Presenters

  • Gautham Krishnan

    University of Illinois at Urbana-Champaign

  Authors

  • Gautham Krishnan

    University of Illinois at Urbana-Champaign

  • Carlos Pantano

    University of Southern California

  • Moshe Matalon

    University of Illinois at Urbana-Champaign

  View abstract →

• Rayleigh-Taylor Unstable Flames: A Transition to Distributed Burning?

  ORAL

  Nov. 25, 2024, 5:21 PM – Nov. 25, 2024, 5:34 PM

  Publication: paper in preparation

  Presenters

  • Elizabeth P Hicks

    Epsilon Delta Labs

  Authors

  • Elizabeth P Hicks

    Epsilon Delta Labs

  View abstract →

• Existence of Invariant Region to Damköhler number in a Reactive Viscous Fingering

  ORAL

  Nov. 25, 2024, 5:34 PM – Nov. 25, 2024, 5:47 PM

  Publication: [1]] Anne De Wit. Chemo-hydrodynamic patterns and instabilities. Annual Review of Fluid Mechanics, 52(1):531–555, 2020.
  [2] George M Homsy. Viscous fingering in porous media. Annual review of fluid mechanics, 19(1):271–311,1987.
  [3] S. H. Hejazi, P. M. J. Trevelyan, J. Azaiez, and Anne De Wit. Viscous fingering of a miscible reactive A + B → C interface: a linear stability analysis. Journal of Fluid Mechanics, 652:501–528, 2010.
  [4] Vandita Sharma, Satyajit Pramanik, Ching-Yao Chen, and Manoranjan Mishra. A numerical study on reaction-induced radial fingering instability. Journal of Fluid Mechanics, 862:624–638, 2019.
  [5] Luis Atilio Riolfo, Yuichiro Nagatsu, Shuji Iwata, Renaud Maes, PMJ Trevelyan, and Anne De Wit. Experimental evidence of reaction-driven miscible viscous fingering. Physical Review E, 85(1):015304, 2012.
  [6] Priya Verma, Vandita Sharma, Ching-Yao Chen, and Manoranjan Mishra. Damköhler number indepen-
  dent stable regime in reactive radial viscous fingering. Journal of Fluid Mechanics, Accepted, 2024.

  Presenters

  • Priya Verma

    National Yang Ming Chiao Tung University

  Authors

  • Priya Verma

    National Yang Ming Chiao Tung University

  • Manoranjan Mishra

    Indian Institute of Technology Ropar

  • Ching-Yao Chen

    National Yang Ming Chiao Tung Univ

  View abstract →