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Dr Travis Mitchell
Dr

Travis Mitchell

Email: 
Phone: 
+61 7 336 54058

Overview

Background

Dr. Travis Mitchell is a Lecturer within the School of Mechanical and Mining Engineering at The University of Queensland (UQ). Travis completed his PhD in multiphase computational fluid dynamics at UQ, as well as a dual degree including a BE(Hons) in mechanical engineering and BSc in Mathematics. During his PhD, he interned at the Helmholtz Institue for Renewable Energy Production in Nuremberg (Germany), presented invited talks at the Warsaw University of Technology, Massachusetts Institutte of Technology, and stayed with collaborators at the University of Pennsylvania. His doctoral research focused on the development of a simulation methodology for capturing liquid-gas interactions, which he applied in the context of resource extraction.

Dr Mitchell's research is focused on the development, implementation, and application of numerical models to study complex fluid flows, with a particular interest in porous media, multiphase, and multiphysics problems. Travis was recognised at the 18th International Conference for Mesoscopic Methods in Engineering and Science with the ICMMES-CSRC Award for his work in multiphase lattice Boltzmann methods. His current research applications include the development of gas diffusion electrodes for CO2 electrolysis, bubble-particle interaction in hydrogen formation for methane pyrolysis, particle propagation in the upper respiratory system, and multiphase transport in fractured media.

Within the School of Mechanical and Mining Engineering, Dr. Mitchell coordinates the second year course on Computational Engineering and Data Analysis (MECH2700) and lectures into Computational Mechanics (MECH3780) and Computational Fluid Dynamics (MECH6480). Travis is an Associate Fellow of the Higher Education Academy and received an EAIT Citation for Excellence in Student Learning in 2023.

Availability

Dr Travis Mitchell is:
Available for supervision
Media expert

Qualifications

  • Bachelor of Mathematics, The University of Queensland
  • Bachelor (Honours) of Engineering, The University of Queensland
  • Doctor of Philosophy, The University of Queensland

Research interests

  • Computational fluid dynamics

  • Lattice Boltzmann methods for fluid flows

  • Multiphase fluid dynamics

  • High performance computing

  • Complex bubble dynamics

  • Hydrogen generation from bubble reactor devices

Works

Search Professor Travis Mitchell’s works on UQ eSpace

33 works between 2016 and 2024

1 - 20 of 33 works

2024

Journal Article

Development of a central-moment phase-field lattice Boltzmann model for thermocapillary flows: Droplet capture and computational performance

Holzer, Markus, Mitchell, Travis R., Leonardi, Christopher R. and Rüde, Ulrich (2024). Development of a central-moment phase-field lattice Boltzmann model for thermocapillary flows: Droplet capture and computational performance. Journal of Computational Physics, 518 113337, 113337. doi: 10.1016/j.jcp.2024.113337

Development of a central-moment phase-field lattice Boltzmann model for thermocapillary flows: Droplet capture and computational performance

2024

Journal Article

Computational investigation of the role of ventricular remodelling in HFpEF: The key to phenotype dissection

Abraham, Jijo Derick, Shavik, Sheikh Mohammad, Mitchell, Travis R., Lee, Lik Chuan, Ray, Bahni and Leonardi, Christopher R. (2024). Computational investigation of the role of ventricular remodelling in HFpEF: The key to phenotype dissection. Computers in Biology and Medicine, 180 109019, 109019. doi: 10.1016/j.compbiomed.2024.109019

Computational investigation of the role of ventricular remodelling in HFpEF: The key to phenotype dissection

2024

Journal Article

Contextual existence of an optimum through-plane orientation and aspect ratio of a fiber-segment in fibrous air filters

Bhardwaj, Utsav, Ray, Bahni, Das, Dipayan, Mitchell, Travis R., Das, Apurba and Leonardi, Christopher R. (2024). Contextual existence of an optimum through-plane orientation and aspect ratio of a fiber-segment in fibrous air filters. Physics of Fluids, 36 (3) 033348. doi: 10.1063/5.0192443

Contextual existence of an optimum through-plane orientation and aspect ratio of a fiber-segment in fibrous air filters

2024

Journal Article

Numerical investigation of the effect of nanoparticle aggregation on the performance of concentrated photovoltaic-solar thermal collectors with spectral filtering

Mojumder, Juwel C., Mitchell, Travis, Aminossadati, Saiied M. and Leonardi, Christopher R. (2024). Numerical investigation of the effect of nanoparticle aggregation on the performance of concentrated photovoltaic-solar thermal collectors with spectral filtering. Applied Thermal Engineering, 239 121944, 1-17. doi: 10.1016/j.applthermaleng.2023.121944

Numerical investigation of the effect of nanoparticle aggregation on the performance of concentrated photovoltaic-solar thermal collectors with spectral filtering

2023

Journal Article

Assessment of capillary rise in rocks by Time Lapse Digital Imaging

López, Paulo, Mitchel, Travis, Leonardi, Christopher and Onederra, Italo (2023). Assessment of capillary rise in rocks by Time Lapse Digital Imaging. Minerals Engineering, 204 108434, 108434. doi: 10.1016/j.mineng.2023.108434

Assessment of capillary rise in rocks by Time Lapse Digital Imaging

2023

Journal Article

Investigation of Taylor bubble dynamics in annular conduits with counter-current flow

Liu, Yaxin, Mitchell, Travis, Upchurch, Eric R., Ozbayoglu, Evren M. and Baldino, Silvio (2023). Investigation of Taylor bubble dynamics in annular conduits with counter-current flow. International Journal of Multiphase Flow, 170 104626, 1-16. doi: 10.1016/j.ijmultiphaseflow.2023.104626

Investigation of Taylor bubble dynamics in annular conduits with counter-current flow

2023

Conference Publication

Towards a statistical framework to upscale fracture flows with quantifiable uncertainty

Mitchell, T., Sashko, D., Łaniewski-Wołłk, Ł. and Leonardi, C. (2023). Towards a statistical framework to upscale fracture flows with quantifiable uncertainty. 2nd EAGE Workshop on Fluid Flow in Faults and Fracture - Modelling, Uncertainty and Risk, Canberra, ACT Australia, 15-16 August 2023. Bunnik, Netherlands: European Association of Geoscientists & Engineers. doi: 10.3997/2214-4609.202373012

Towards a statistical framework to upscale fracture flows with quantifiable uncertainty

2023

Journal Article

Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN), Part II: Semantic segmentation using a 2.5D CNN

Roslin, A., Marsh, M., Provencher, B., Mitchell, T. R., Onederra, I. A. and Leonardi, C. R. (2023). Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN), Part II: Semantic segmentation using a 2.5D CNN. Minerals Engineering, 195 108027, 108027. doi: 10.1016/j.mineng.2023.108027

Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN), Part II: Semantic segmentation using a 2.5D CNN

2023

Journal Article

Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN). Part III: Enhancement of Scanco micro-CT images of granodiorite rocks using a 3D convolutional neural network super-resolution algorithm

Roslin, A., Lebedev, M., Mitchell, T.R., Onederra, I.A. and Leonardi, C.R. (2023). Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN). Part III: Enhancement of Scanco micro-CT images of granodiorite rocks using a 3D convolutional neural network super-resolution algorithm. Minerals Engineering, 195 108028, 1-10. doi: 10.1016/j.mineng.2023.108028

Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN). Part III: Enhancement of Scanco micro-CT images of granodiorite rocks using a 3D convolutional neural network super-resolution algorithm

2023

Journal Article

Comparison of free-surface and conservative Allen–Cahn phase-field lattice Boltzmann method

Schwarzmeier, Christoph, Holzer, Markus, Mitchell, Travis, Lehmann, Moritz, Häusl, Fabian and Rüde, Ulrich (2023). Comparison of free-surface and conservative Allen–Cahn phase-field lattice Boltzmann method. Journal of Computational Physics, 473 111753, 1-33. doi: 10.1016/j.jcp.2022.111753

Comparison of free-surface and conservative Allen–Cahn phase-field lattice Boltzmann method

2023

Journal Article

Experimental and numerical investigation into the fracture patterns induced by blast-loading under unconfined and confined conditions

Mitchell, T. R., Wang, Z., Araos, M., Leonardi, C. R., Gefken, P. R. and Onederra, I. A. (2023). Experimental and numerical investigation into the fracture patterns induced by blast-loading under unconfined and confined conditions. Rock Mechanics and Rock Engineering, 56 (4), 2433-2455. doi: 10.1007/s00603-022-03195-x

Experimental and numerical investigation into the fracture patterns induced by blast-loading under unconfined and confined conditions

2023

Journal Article

Quantifying the permeability enhancement from blast-induced microfractures in porphyry rocks using a cumulant lattice Boltzmann method

Mitchell, T. R., Roslin, A., Łaniewski-Wołłk, , Onederra, I. and Leonardi, C. R. (2023). Quantifying the permeability enhancement from blast-induced microfractures in porphyry rocks using a cumulant lattice Boltzmann method. Transport in Porous Media, 146 (3), 587-615. doi: 10.1007/s11242-022-01875-4

Quantifying the permeability enhancement from blast-induced microfractures in porphyry rocks using a cumulant lattice Boltzmann method

2022

Journal Article

Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN), Part I: Super-resolution enhancement using a 3D CNN

Roslin, A., Marsh, M., Piché, N., Provencher, B., Mitchell, T. R., Onederra, I. A. and Leonardi, C. R. (2022). Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN), Part I: Super-resolution enhancement using a 3D CNN. Minerals Engineering, 188 107748, 107748. doi: 10.1016/j.mineng.2022.107748

Processing of micro-CT images of granodiorite rock samples using convolutional neural networks (CNN), Part I: Super-resolution enhancement using a 3D CNN

2022

Journal Article

Efficient implicit methods for wellbore shear failure analysis during drilling and production in coalbeds

Zhong, Ruizhi, Mitchell, Travis, Johnson Jr., Raymond and Leonardi, Christopher (2022). Efficient implicit methods for wellbore shear failure analysis during drilling and production in coalbeds. International Journal of Rock Mechanics and Mining Sciences, 155 105129, 105129. doi: 10.1016/j.ijrmms.2022.105129

Efficient implicit methods for wellbore shear failure analysis during drilling and production in coalbeds

2021

Other Outputs

Targeted conditioning and extraction

Onederra, Italo, Leonardi, Christopher, Mitchell, Travis, Roslin, Alexandra, Araos, Miguel, Wang, Zi, Lopez, Paulo and Salazar, Felipe (2021). Targeted conditioning and extraction. Brisbane, QLD Australia: The University of Queensland.

Targeted conditioning and extraction

2021

Journal Article

Stability assessment of the phase-field lattice Boltzmann model and its application to Taylor bubbles in annular piping geometries

Mitchell, T., Holzer, M., Schwarzmeier, C., Bauer, M., Rüde, U. and Leonardi, C. (2021). Stability assessment of the phase-field lattice Boltzmann model and its application to Taylor bubbles in annular piping geometries. Physics of Fluids, 33 (8) 083325, 1-22. doi: 10.1063/5.0061694

Stability assessment of the phase-field lattice Boltzmann model and its application to Taylor bubbles in annular piping geometries

2021

Conference Publication

Analytical and numerical assessment of the influence of bulk coal strength on drilling operations in unconventional coal seam gas wells

Leonardi, C. R., Zhong, R., Mitchell, T. R., Chen, Z., Johnson, R. L., O'Hagan, D. and Flottmann, T. (2021). Analytical and numerical assessment of the influence of bulk coal strength on drilling operations in unconventional coal seam gas wells. 55th US Rock Mechanics/Geomechanics Symposium, Houston, TX USA, 20-23 June 2021. Alexandria, VA USA: American Rock Mechanics Association.

Analytical and numerical assessment of the influence of bulk coal strength on drilling operations in unconventional coal seam gas wells

2021

Journal Article

Computational modeling of three-dimensional thermocapillary flow of recalcitrant bubbles using a coupled lattice Boltzmann-finite difference method

Mitchell, T. R., Majidi, M., Rahimian, M. H. and Leonardi, C. R. (2021). Computational modeling of three-dimensional thermocapillary flow of recalcitrant bubbles using a coupled lattice Boltzmann-finite difference method. Physics of Fluids, 33 (3) 032108, 1-23. doi: 10.1063/5.0038171

Computational modeling of three-dimensional thermocapillary flow of recalcitrant bubbles using a coupled lattice Boltzmann-finite difference method

2021

Conference Publication

Numerical evaluation of bulk geomechanical properties of fractured coal with changing net effective stress conditions

Mitchell, Travis R., Zhong, Ruizhi, Johnson, Ray and Leonardi, Christopher R. (2021). Numerical evaluation of bulk geomechanical properties of fractured coal with changing net effective stress conditions. SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, Virtual, 16-18 November 2021. Tulsa, OK, United States: Unconventional Resources Technology Conference. doi: 10.15530/ap-urtec-2021-208346

Numerical evaluation of bulk geomechanical properties of fractured coal with changing net effective stress conditions

2021

Conference Publication

Wellbore stability analysis of horizontal drilling in Bowen and Surat coal seam gas wells

Zhong, Ruizhi, Leonardi, Christopher R., Mitchell, Travis R. and Johnson, Ray L. (2021). Wellbore stability analysis of horizontal drilling in Bowen and Surat coal seam gas wells. SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, Virtual, 16-18 November 2021. Tulsa, OK, United States: Unconventional Resources Technology Conference. doi: 10.15530/ap-urtec-2021-208399

Wellbore stability analysis of horizontal drilling in Bowen and Surat coal seam gas wells

Funding

Current funding

  • 2023 - 2024
    Modelling and monitoring of spatiotemporal variation of CSG-induced subsidence
    Santos Limited
    Open grant

Past funding

  • 2023
    Aerodynamic characterisation of textured fabrics
    AusCycling Pty Ltd
    Open grant
  • 2022 - 2024
    Pressure drop and proppant transport in vertical and horizontal fractures: The role of 100 mesh
    Origin Energy Upstream Operator
    Open grant
  • 2021 - 2022
    Quantifying the Influence of Wire Screen Geometry on Voiding and Pinning in CCR Reactors
    Innovation Connections
    Open grant
  • 2021 - 2024
    Massively parallel models of particle suspensions
    Pawsey Centre for Extreme Scale Readiness
    Open grant

Supervision

Availability

Dr Travis Mitchell is:
Available for supervision

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Available projects

  • Investigating fundamental bubble-particle interactions in three-phase systems

    We are seeking a highly motivated PhD candidate to study the fundamental interaction of bubbles and particles in unsteady flows using novel numerical techniques. This will provide insights into the fundamental principles that govern their behaviour in various flow conditions. The engineering applications in which understanding such flows is crucial includes: -

    • Hydrogen production through methane pyrolysis.
    • Mineral processing in flotation systems
    • Beer brewing in immobilised yeast reactors.

Supervision history

Current supervision

Media

Enquiries

Contact Dr Travis Mitchell directly for media enquiries about:

  • computational fluid dynamics
  • high performance computing
  • liquid-gas interaction
  • numerical modelling

Need help?

For help with finding experts, story ideas and media enquiries, contact our Media team:

communications@uq.edu.au