
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
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
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
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
2020
Conference Publication
Analysis of Taylor bubble dynamics via high-fidelity numerical modelling
Mitchell, Travis and Leonardi, Christopher (2020). Analysis of Taylor bubble dynamics via high-fidelity numerical modelling. 22nd Australasian Fluid Mechanics Conference AFMC2020, Brisbane, Australia, 7-10 December 2020. Brisbane, Australia: The University of Queensland. doi: 10.14264/4181c21
2020
Conference Publication
Lattice Boltzmann modelling of a regularised Kuang-Luo fluid in a carotid artery
Hill, Bryce, Mitchell, Travis and Leonardi, Christopher (2020). Lattice Boltzmann modelling of a regularised Kuang-Luo fluid in a carotid artery. 22nd Australasian Fluid Mechanics Conference AFMC2020, Brisbane, QLD Australia, 7-10 December 2020. Brisbane, QLD Australia: The University of Queensland. doi: 10.14264/cf18781
2020
Journal Article
On the rise characteristics of Taylor bubbles in annular piping
Mitchell, T. and Leonardi, C. (2020). On the rise characteristics of Taylor bubbles in annular piping. International Journal of Multiphase Flow, 130 103376, 103376. doi: 10.1016/j.ijmultiphaseflow.2020.103376
2020
Journal Article
Development of closure relations for the motion of Taylor bubbles in vertical and inclined annular pipes using high-fidelity numerical modeling
Mitchell, T. and Leonardi, C. (2020). Development of closure relations for the motion of Taylor bubbles in vertical and inclined annular pipes using high-fidelity numerical modeling. Physics of Fluids, 32 (6) 063306, 063306. doi: 10.1063/5.0011456
2019
Other Outputs
Development of a multiphase lattice Boltzmann model for high-density and viscosity ratio flows in unconventional gas wells
Mitchell, Travis (2019). Development of a multiphase lattice Boltzmann model for high-density and viscosity ratio flows in unconventional gas wells. PhD Thesis, School of Mechanical and Mining Engineering, The University of Queensland. doi: 10.14264/uql.2020.78
2019
Journal Article
A cascaded phase-field lattice Boltzmann model for the simulation of incompressible, immiscible fluids with high density contrast
Gruszczyński, G., Mitchell, T., Leonardi, C., Łaniewski-Wołłk, Ł. and Barber, T. (2019). A cascaded phase-field lattice Boltzmann model for the simulation of incompressible, immiscible fluids with high density contrast. Computers & Mathematics with Applications, 79 (4), 1049-1071. doi: 10.1016/j.camwa.2019.08.018
2019
Conference Publication
Development and Evaluation of Multiphase Closure Models used in the Simulation of Unconventional Wellbore Dynamics
Mitchell, Travis, Hill, Bryce, Firouzi, Mahshid and Leonardi, Christopher (2019). Development and Evaluation of Multiphase Closure Models used in the Simulation of Unconventional Wellbore Dynamics. Unconventional Resources Technology Conference (URTEC), Brisbane, QLD Australia, 18 - 19 November 2019. Tulsa, OK United States: Unconventional Resources Technology Conference. doi: 10.15530/ap-urtec-2019-198239
2018
Conference Publication
Towards closure relations for the rise velocity of Taylor bubbles in annular piping using phase-field lattice Boltzmann techniques
Mitchell, Travis, Leonardi, Chris, Firouzi, Mahshid and Towler, Brian (2018). Towards closure relations for the rise velocity of Taylor bubbles in annular piping using phase-field lattice Boltzmann techniques. 21st Australasian Fluid Mechanics Conference, Adelaide, SA, Australia, 10 - 13 December 2018. Hawthorn, VIC, Australia: Australasian Fluid Mechanics Society.
2018
Journal Article
Development of a three-dimensional phase-field lattice Boltzmann method for the study of immiscible fluids at high density ratios
Mitchell, T., Leonardi, C. and Fakhari, A. (2018). Development of a three-dimensional phase-field lattice Boltzmann method for the study of immiscible fluids at high density ratios. International Journal of Multiphase Flow, 107, 1-15. doi: 10.1016/j.ijmultiphaseflow.2018.05.004
2017
Journal Article
Improved locality of the phase-field lattice-Boltzmann model for immiscible fluids at high density ratios
Fakhari, Abbas, Mitchell, Travis, Leonardi, Christopher and Bolster, Diogo (2017). Improved locality of the phase-field lattice-Boltzmann model for immiscible fluids at high density ratios. Physical Review E, 96 (5) 053301, 053301. doi: 10.1103/PhysRevE.96.053301
2017
Journal Article
A critical review of flow maps for gas-liquid flows in vertical pipes and annuli
Wu, Benjamin, Firouzi, Mahshid, Mitchell, Travis, Rufford, Thomas E., Leonardi, Christopher and Towler, Brian (2017). A critical review of flow maps for gas-liquid flows in vertical pipes and annuli. Chemical Engineering Journal, 326, 350-377. doi: 10.1016/j.cej.2017.05.135
2016
Journal Article
Micromechanical investigation of fines liberation and transport during coal seam dewatering
Mitchell, Travis R. and Leonardi, Christopher R. (2016). Micromechanical investigation of fines liberation and transport during coal seam dewatering. Journal of Natural Gas Science and Engineering, 35 (A), 1101-1120. doi: 10.1016/j.jngse.2016.09.038
2016
Conference Publication
Characterising the Behaviour of Hydraulic Fracturing Fluids via Direct Numerical Simulation
Leonardi, Christopher , Regulski, Wojciech, McCullough, Jon W. S., Wang, Duo, Mitchell, Travis R., Jones, Bruce D. and Williams, John R. (2016). Characterising the Behaviour of Hydraulic Fracturing Fluids via Direct Numerical Simulation. SPE Asia Pacific Oil & Gas Conference and Exhibition, Perth, Australia, 25-27 October 2016. Richardson, TX, United States: Society of Petroleum Engineers. doi: 10.2118/182458-MS
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
High-resolution computational model of ultrasound-induced cavitation in tissue
Principal Advisor
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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
Investigating fundamental bubble-particle interactions in three-phase systems
Principal 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
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 Christopher Leonardi
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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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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
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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