Turbulence Modeling II

Presentations

• Reynolds stress decay modeling informed by anisotropically forced homogeneous turbulence

  ORAL

  Nov. 26, 2024, 10:00 AM – Nov. 26, 2024, 10:13 AM

  Presenters

  • Omkar Shende

    Stanford University

  Authors

  • Omkar Shende

    Stanford University

  • Ty Homan

    Stanford University

  • Ali Mani

    Stanford University

  View abstract →

• Assessment of confinement effects on decay terms of Reynolds-stress transport equations

  ORAL

  Nov. 26, 2024, 10:13 AM – Nov. 26, 2024, 10:26 AM

  Presenters

  • Makrand A Khanwale

    Stanford University, Center for Turbulence Research

  Authors

  • Makrand A Khanwale

    Stanford University, Center for Turbulence Research

  • Ali Mani

    Stanford University

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• Assessment of anisotropy in the decay term of the dissipation equation for Reynolds stress transport models

  ORAL

  Nov. 26, 2024, 10:26 AM – Nov. 26, 2024, 10:39 AM

  Publication: T. Homan, O. Shende, A. Mani, Reynolds stress decay modeling informed by anisotropically forced homogeneous turbulence, Phys. Rev. Fluids, (2024).
  C. Dhandapani, K. J. Rah, and G. Blanquart, Effective forcing for direct numerical simulations of the shear layer of
  469 turbulent free shear flows, Phys. Rev. Fluids 4, 084606 (2019).

  Presenters

  • Rozie Zangeneh

    Stanford University

  Authors

  • Rozie Zangeneh

    Stanford University

  • Omkar Shende

    Stanford University

  • Ali Mani

    Stanford University

  View abstract →

• Non-linear structure-based modeling of the rapid pressure strain rate correlation using machine learning

  ORAL

  Nov. 26, 2024, 10:39 AM – Nov. 26, 2024, 10:52 AM

  Presenters

  • Sahil Kommalapati

    University of Texas at Austin

  Authors

  • Sahil Kommalapati

    University of Texas at Austin

  • Sigfried W Haering

    University of Texas at Austin

  • Robert D Moser

    University of Texas at Austin

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• Deep neural network framework for modeling pressure hessian tensor in incompressible turbulent flows

  ORAL

  Nov. 26, 2024, 10:52 AM – Nov. 26, 2024, 11:05 AM

  Publication: An augmented invariants-based model for the pressure Hessian tensor using physics-assisted neural networks, Deep Shikha and Sawan S. Sinha, Physics of Fluids, 135(12), 2023

  Presenters

  • Deep Shikha

    Indian Institute of Technology Delhi

  Authors

  • Deep Shikha

    Indian Institute of Technology Delhi

  • Sawan S Sinha

    Indian Institute of Technology Delhi, India

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• Prediction of particle trajectories in DNS with machine learning

  ORAL

  Nov. 26, 2024, 11:05 AM – Nov. 26, 2024, 11:18 AM

  Presenters

  • Oanh L Pham

    University of Oklahoma

  Authors

  • Oanh L Pham

    University of Oklahoma

  • Dimitrios V Papavassiliou

    The University of Oklahoma, University of Oklahoma

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• Data-enabled discovery of specific and generalizable turbulence closures

  ORAL

  Nov. 26, 2024, 11:18 AM – Nov. 26, 2024, 11:31 AM

  Publication: Yang, Z., Shan, X., & Zhang, W. (2024). Discovery of knowledge of wall-bounded turbulence via symbolic regression. arXiv preprint arXiv:2406.08950.

  Presenters

  • Zhongxin Yang

    Peking University

  Authors

  • Zhongxin Yang

    Peking University

  • Xianglin Shan

    Northwestern Polytechnical University

  • Xiang Yang

    Pennsylvania State University

  • Weiwei Zhang

    Northwestern Polytechnical University

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• Differentiable physics for generalizable closure modeling of separated flows

  ORAL

  Nov. 26, 2024, 11:31 AM – Nov. 26, 2024, 11:44 AM

  Publication: Shankar, Varun, Romit Maulik, and Venkatasubramanian Viswanathan. "Differentiable turbulence ii." arXiv preprint arXiv:2307.13533 (2023).

  Presenters

  • Hojin Kim

    Pennsylvania State University

  Authors

  • Hojin Kim

    Pennsylvania State University

  • Romit Maulik

    Pennsylvania State University

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• Influence of vibrational non-equilibrium on the dynamics of velocity gradients in turbulent flows

  ORAL

  Nov. 26, 2024, 11:44 AM – Nov. 26, 2024, 11:57 AM

  Publication: Influence of vibrational non-equilibrium on the dynamics of velocity gradients in compressible flows, Shishir Srivastava, Farooq A. Bhat and Sawan S. Sinha, Journal of Fluid Mechanics, 988, A24, 2024

  Presenters

  • Sawan S Sinha

    Indian Institute of Technology Delhi, India

  Authors

  • Sawan S Sinha

    Indian Institute of Technology Delhi, India

  • Shishir Srivastava

    Indian Institute of Technology Delhi INDIA

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• Fractional Navier-Stokes equations from first principles

  ORAL

  Nov. 26, 2024, 11:57 AM – Nov. 26, 2024, 12:10 PM

  Publication: Pranjivan Mehta, P. (2024). Fractional vector calculus and fractional Navier-Stokes equations. (in preparation).

  Presenters

  • Pavan Pranjivan Mehta

    SISSA, International School of Advanced Studies

  Authors

  • Pavan Pranjivan Mehta

    SISSA, International School of Advanced Studies

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• Investigation of turbulent mixing of scalars with arbitrary Schmidt numbers using the stochastic Hierarchical Parcel Swapping Model

  ORAL

  Nov. 26, 2024, 12:10 PM – Nov. 26, 2024, 12:23 PM

  Publication: M. Behrang, T. Starick, I. Wheeler, H. Schmidt, A.R. Kerstein, D.O. Lignell, "Hierarchical parcel-swapping representation of turbulent mixing. Part 4. Extension to the viscous range and to mixing of scalars with nonunity Schmidt numbers," submitted to Journal of Fluid Mechanics, June 2024.

  Presenters

  • David O Lignell

    Brigham Young University

  Authors

  • David O Lignell

    Brigham Young University

  • Masoomeh Behrang

    Brigham Young University

  • Alan R Kerstein

    Consultant

  • Isaac Wheeler

    Brigham Young University

  • Tommy Starrick

    BTU Cottbus-Senftenberg, BTU Cottbus

  • Heiko Schmidt

    BTU Cottbus-Senftenberg

  View abstract →