Flow Instability: Boundary Layers and Transition I

Presentations

• On the role of laminar/turbulent interface on energy transfer between scales in bypass transition

  ORAL

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

  Presenters

  • George Papadakis

    Imperial College London

  Authors

  • George Papadakis

    Imperial College London

  • Hanxun Yao

    Imperial College London, Johns Hopkins University

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• On the stability of rarefied gas flows over a compression corner calculated using kinetic methods

  ORAL

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

  Presenters

  • Irmak Taylan Karpuzcu

    University of Illinois at Urbana-Champaign, University of Illinois Urbana-Champaign

  Authors

  • Nicolas Cerulus

    Univ of Liverpool

  • Irmak Taylan Karpuzcu

    University of Illinois at Urbana-Champaign, University of Illinois Urbana-Champaign

  • Deborah A Levin

    University of Illinois at Urbana-Champaign, University of Illinois Urbana-Champaign

  • Vassilis Theofilis

    Univ of Liverpool, University of Liverpool

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• Input-Output analysis prediction of hypersonic laminar-turbulent transition over slender sphere-cones

  ORAL

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

  Presenters

  • Michael C Krygier

    Sandia National Laboratories

  Authors

  • Michael C Krygier

    Sandia National Laboratories

  • Neal P Bitter

    John Hopkins Applied Physics Laboratory

  • Jeffrey A Fike

    Sandia National Laboratories

  • Ross M Wagnild

    Sandia National Laboratories

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• Effects of roughness spacing on boundary-layer transition due to distributed surface roughness

  ORAL

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

  Publication: Global stability analysis and direct numerical simulation of boundary layers with an isolated roughness element, Rong Ma, Krishnan Mahesh, https://arxiv.org/abs/2112.02708, in revision under Journal of Fluid Mechanics<br><br>Boundary layer transition due to distributed roughness: Effect of roughness spacing, Rong Ma, Krishnan Mahesh, in preparation

  Presenters

  • Rong Ma

    University of Minnesota

  Authors

  • Rong Ma

    University of Minnesota

  • Krishnan Mahesh

    University of Minnesota

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• Travelling and Stationary Crossflow Instability and Control Experiments Involving a Swept Fin-Cone Model in Mach 6 Flow

  ORAL

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

  Presenters

  • John B Middlebrooks

    University of Notre Dame

  Authors

  • John B Middlebrooks

    University of Notre Dame

  • Thomas C Corke

    University of Notre Dame

  • Eric H Matlis

    University of Notre Dame

  • Michael T Semper

    United States Air Force Academy

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• Hypersonic Boundary Layer Stability of Local Cooling Strip and Porous Surface

  ORAL

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

  Presenters

  • Furkan Oz

    Oklahoma State University, Oklahoma State University - Stillwater

  Authors

  • Furkan Oz

    Oklahoma State University, Oklahoma State University - Stillwater

  • Kursat Kara

    Oklahoma State University-Stillwater

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• Instability of flow over a supersonic ramp

  ORAL

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

  Presenters

  • Henry Broadley

    University of Manchester

  Authors

  • Henry Broadley

    University of Manchester

  • Richard Hewitt

    University of Manchester

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• Laminar-turbulent transition mechanisms of separated flows using the Harmonic Balance method

  ORAL

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

  Publication: Savarino F, Rigas G, Sipp D. Laminar-turbulent transition mechanisms of laminar separation bubbles: a frequency approach. J Fluid Mech (planned paper)

  Presenters

  • Flavio Savarino

    Imperial College London

  Authors

  • Flavio Savarino

    Imperial College London

  • Denis Sipp

    ONERA at Meudon, DAAA, ONERA, Université Paris Saclay

  • Georgios Rigas

    Imperial College London

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• Computational Study of Transition on a Flared Cone Using Random Forcing

  ORAL

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

  Publication: Andrew J. Shuck, Jonathan Poggie and Gregory A. Blaisdell. "Computational Study of Transition on a Flared Cone Using Random Forcing," AIAA 2022-3248. AIAA AVIATION 2022 Forum. June 2022.

  Presenters

  • Andrew J Shuck

    Purdue University

  Authors

  • Andrew J Shuck

    Purdue University

  • Jonathan Poggie

    Purdue University

  • Gregory A Blaisdell

    Purdue University

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• One-Way Navier-Stokes (OWNS) Approach for Nonlinear Analysis of Instability and Transition in Boundary-Layer Flows

  ORAL

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

  Presenters

  • Michael Sleeman

    Caltech

  Authors

  • Michael Sleeman

    Caltech

  • Matthew T Lakebrink

    The Boeing Company

  • Tim Colonius

    Caltech, California Institute of Technology

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• Effect of surface imperfections on the transition of a Blasius boundary layer

  ORAL

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

  Presenters

  • Ming TENG

    Queen's University

  Authors

  • Ming TENG

    Queen's University

  • Ugo Piomelli

    Queen's University

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• Boundary layer receptivity to periodically passing vortical disturbances

  ORAL

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

  Publication: 1. wake-triggered secondary vortices over a rod/airfoil configuration, Experiments in Fluids (planned paper).<br>2. wake/boundary-layer interactions over a rod/flat-plate configuration, Physics of Fluids (planned paper).

  Presenters

  • Jinjun Wang

    Fluid Mechanics Key Laboratory of Education Ministry, Beijing University of Aeronautics and Astronautics, Beijing 100191, China, Beihang University

  Authors

  • Jiangsheng Wang

    Fluid Mechanics Key Laboratory of Education Ministry, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Jun Wu

    Fluid Mechanics Key Laboratory of Education Ministry, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Guosheng He

    Fluid Mechanics Key Laboratory of Education Ministry, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Jinjun Wang

    Fluid Mechanics Key Laboratory of Education Ministry, Beijing University of Aeronautics and Astronautics, Beijing 100191, China, Beihang University

  View abstract →