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
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Computational fluid dynamics
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Lattice Boltzmann methods for fluid flows
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Multiphase fluid dynamics
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High performance computing
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Complex bubble dynamics
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Hydrogen generation from bubble reactor devices
Works
Search Professor Travis Mitchell’s works on UQ eSpace
2024
Journal Article
Development and validation of a phase-field lattice Boltzmann method for non-Newtonian Herschel-Bulkley fluids in three dimensions
Hill, B. M., Mitchell, T. R., Łaniewski-Wołłk, Ł., Aminossadati, S. M. and Leonardi, C. R. (2024). Development and validation of a phase-field lattice Boltzmann method for non-Newtonian Herschel-Bulkley fluids in three dimensions. Computers and Mathematics with Applications, 176, 398-414. doi: 10.1016/j.camwa.2024.10.035
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
2024
Journal Article
Hydrodynamics of molten media bubble columns for hydrogen production through methane pyrolysis
Okajima, Ryota, Mitchell, Travis R., Leonardi, Christopher R. and Smart, Simon (2024). Hydrodynamics of molten media bubble columns for hydrogen production through methane pyrolysis. Physics of Fluids, 36 (10) 103347. doi: 10.1063/5.0227299
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
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, 1-20. doi: 10.1063/5.0192443
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
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
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
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
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
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
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
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
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
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
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
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.
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
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.
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
Funding
Current funding
Past funding
Supervision
Availability
- Dr Travis Mitchell is:
- Available for supervision
Before you email them, read our advice on how to contact a supervisor.
Available projects
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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
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Doctor Philosophy
Investigating fundamental bubble-particle interactions in three-phase systems
Principal Advisor
Other advisors: Dr Christopher Leonardi
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Doctor Philosophy
Controlling microenvironments to enable green fuels and scalable electrolysis
Principal Advisor
Other advisors: Professor Tom Rufford, Dr Christopher Leonardi
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Doctor Philosophy
High-resolution computational model of ultrasound-induced cavitation in tissue
Principal Advisor
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Doctor Philosophy
Integrating hydrogen from methane pyrolysis into the iron and steel industry
Associate Advisor
Other advisors: Dr Christopher Leonardi, Associate Professor Simon Smart
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Doctor Philosophy
Quantifying the mechanical properties of myocardium in cases of heart failure by preserved ejection fraction (HFpEF)
Associate Advisor
Other advisors: Dr Christopher Leonardi
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Doctor Philosophy
Modelling and fabrication of optimal fiber-based filter for effective air-borne fine-particle capture
Associate Advisor
Other advisors: Dr Christopher Leonardi
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Master Philosophy
LBM-DEM modelling of multiphase, viscoelastic suspensions
Associate Advisor
Other advisors: Dr Christopher Leonardi
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Doctor Philosophy
Development of a non-Newtonian phase-field lattice Boltzmann method model for complex flows in porous media
Associate Advisor
Other advisors: Associate Professor Saiied Aminossadati, Dr Christopher Leonardi
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Doctor Philosophy
Quantifying the mechanical properties of myocardium in cases of heart failure by preserved ejection fraction (HFpEF)
Associate Advisor
Other advisors: Dr Christopher Leonardi
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Doctor Philosophy
Development of a computational framework for the dynamic interaction of fluids and solids during resource extraction
Associate Advisor
Other advisors: Dr Lukasz Laniewski-Wollk, Dr Christopher Leonardi
Media
Enquiries
Contact Dr Travis Mitchell directly for media enquiries about:
- computational fluid dynamics
- high performance computing
- liquid-gas interaction
- numerical modelling
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