Data-driven simulations for turbulence inside and over porous media

PN 1-7

Project description

Turbulence in porous media is a controversial issue. However, high velocity fluid flow through large porous media can lead to turbulent flow within the pores. Several applications exist wherein the pore Reynolds numbers can be so large that the unsteady inertial effects become important giving rise to transitional and/or turbulent flow. Examples include, but are not limited to, pebble-bed high temperature nuclear reactor, gas turbine cooling and packed bed catalysis. The project is aimed to understand the turbulence inside and over porous media via HPC-aided direct numerical simulation (DNS) and data-driven simulation methods. DNS is enabled by arbitrary high-order highly-scalable spectral/hp element solver. Artificial neural-network (ANN) based super-resolution, LSTM based flow prediction and causality analysis belong to the plan of the project.

Project information

Project title Data-driven simulations for turbulence inside and over porous media
Project leader Xu Chu
Project duration January 2021 - December 2024
Project number PN 1-7

Publications of PN 1-7

  1. 2024

    1. W. Wang and X. Chu, “Investigation on the performance of a torque-driven undulatory swimmer with distributed flexibility,” Physics of Fluids, Feb. 2024, doi: 10.1063/5.0191056.
    2. X. Chu and S. Pandey, “Non-intrusive, transferable model for coupled turbulent channel-porous media flow based upon neural networks,” Physics of Fluids, Feb. 2024, doi: 10.1063/5.0189632.

  2. 2023

    1. X. Chu, S. Pandey, Y. Liu, and B. Weigand, “Modeling of Coupled Turbulent Channel Porous Media Flow through a Deep Autoencoder Echo State Network Framework,” 2023, arXiv. doi: 10.48550/ARXIV.2312.00850.
    2. B. Weigand, “Large-eddy simulation, convective instability, and modal causality of coaxial supersonic air–water jets considering a swirl effect,” Physics of Fluids, vol. 35, no. 6, Art. no. 6, Jun. 2023, doi: 10.1063/5.0149856.
    3. Y. Liu, W. Wang, G. Yang, H. Nemati, and X. Chu, “The interfacial modes and modal causality in a dispersed bubbly turbulent flow,” Physics of Fluids, vol. 35, no. 8, Art. no. 8, Aug. 2023, doi: 10.1063/5.0159886.

  3. 2022

    1. W. Wang, A. Lozano-Durán, R. Helmig, and X. Chu, “Spatial and spectral characteristics of information flux between turbulent boundary layers and porous media,” Journal of Fluid Mechanics, vol. 949, Sep. 2022, doi: 10.1017/jfm.2022.770.
    2. V. Vaikuntanathan et al., “An Analytical Study on the Mechanism of Grouping of Droplets,” Fluids, vol. 7, no. 5, Art. no. 5, 2022, doi: 10.3390/fluids7050172.
    3. T. Yi, X. Chu, B. Wang, J. Wu, and G. Yang, “Numerical simulation of single bubble evolution in low gravity with fluctuation,” International Communications in Heat and Mass Transfer, vol. 130, p. 105828, Jan. 2022, doi: 10.1016/j.icheatmasstransfer.2021.105828.

  4. 2021

    1. Y. Liu, A. Geppert, X. Chu, B. Heine, and B. Weigand, “SIMULATION OF AN ANNULAR LIQUID JET WITH A COAXIAL SUPERSONIC GAS JET IN A MEDICAL INHALER,” vol. 31, no. 9, Art. no. 9, 2021, doi: 10.1615/atomizspr.2021037223.
    2. C. Evrim, X. Chu, F. E. Silber, A. Isaev, S. Weihe, and E. Laurien, “Flow features and thermal stress evaluation in turbulent mixing flows,” International Journal of Heat and Mass Transfer, vol. 178, p. 121605, Oct. 2021, doi: 10.1016/j.ijheatmasstransfer.2021.121605.
    3. W. Wang, X. Chu, A. Lozano-Durán, R. Helmig, and B. Weigand, “Information transfer between turbulent boundary layers and porous media,” vol. 920, Jun. 2021, doi: 10.1017/jfm.2021.445.
    4. G. Yang et al., “Superhydrophilic metal-organic framework thin film for enhancing capillary-driven boiling heat transfer,” 2021, doi: 10.1039/d1ta06826a.
    5. X. Chu, W. Wang, G. Yang, A. Terzis, R. Helmig, and B. Weigand, “Transport of Turbulence Across Permeable Interface in a Turbulent Channel Flow: Interface-Resolved Direct Numerical Simulation,” Transport in Porous Media, vol. 136, no. 1, Art. no. 1, 2021, doi: 10.1007/s11242-020-01506-w.
    6. W. Wang, G. Yang, C. Evrim, A. Terzis, R. Helmig, and X. Chu, “An assessment of turbulence transportation near regular and random permeable interfaces,” Physics of Fluids, vol. 33, no. 11, Art. no. 11, Nov. 2021, doi: 10.1063/5.0069311.

  5. 2020

    1. S. Pandey, X. Chu, B. Weigand, E. Laurien, and J. Schumacher, “Relaminarized and recovered turbulence under nonuniform body forces,” Physical Review Fluids, vol. 5, no. 10, Art. no. 10, Oct. 2020, doi: 10.1103/physrevfluids.5.104604.

  6. 2019

    1. X. Chu, G. Yang, S. Pandey, and B. Weigand, “Direct numerical simulation of convective heat transfer in porous media,” International Journal of Heat and Mass Transfer, pp. 11–20, 2019.
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