Tim joined MERI as a researcher to work in the Materials and Fluid Flow Modelling Group on a number of research and consulting based projects. Previously he had spent a year working with high power lasers at the Central Laser Facility in Oxford and had obtained a PhD (2005) and MSci (2002) in engineering physics from Sheffield Hallam University where he also won the Jeremy Laskowski award and Mössbauer award.
His research involves the application of theory and simulation techniques for the predictive modelling of real life systems that involve fluids. In particular the research focuses on liquid crystals, liquid crystal devices, multistable liquid crystal displays, hydrodynamic flows, multi-component flows, colloidal rheology, micro-fluidics, porous media, biological flows and carrier fluids.
These systems/applications can often be represented well by coupled partial differential equations acting on varying length and time scales. To solve these equations he has expertise in the lattice Boltzmann method, in finite differencing methods, integrating methods and high performance computing methods.
- Developing new lattice Boltzmann methods for Q tensor nemato-dynamics. (Research and consultancy for Seiko Epson Corporation)
- Modelling and experimental predictions for the Zenithal bistable display. (Research and consultancy ZBD Displays Ltd.)
- Liquid crystal alignment on patterned surfaces. (Research)
- Simulations of a novel micro fluidic device for the high speed formation of monodisperse drops. (Consultancy Kodak)
- Multi component lattice Boltzmann methods. (Research)
- Microfluidic devices and novel geometries. (Research)
- Efficient numerical methods for the explicit simulation of particle laden flows with comparison to non-Newtonian theory. (Research)
- Hemodynamic flows near arteriole walls (Research with CNR Rome)
- Predicting the dynamic cell seeding distribution in scaffolds and bioreactor flows applied to bone tissue engineering. (Research in collaboration with University of Manchester)
Oriaku, C.I., Spencer, T.J., & Pereira, M. (2017). Anisotropic Medium Approach for the Optical Nonlinearities of Dilute Nitride Superlattices. . http://doi.org/10.1007/978-94-024-1093-8_14
Spencer, T., Halliday, I., Care, C., Cartmell, S., & Hidalgo-Bastida, A. (2012). In silico multi-scale model of transport and dynamic seeding in a bone tissue engineering perfusion bioreactor. Biotechnology Bioengineering, 110 (4), 1221-1230. http://doi.org/10.1002/bit.24777
Halliday, I., Spencer, T.J., & Care, C.M. (2009). Validation of multicomponent lattice Boltzmann equation simulations using theoretical calculations of immiscible drop shape. Physical review E. Statistical, nonlinear and soft matter physics, 79 (1). http://doi.org/10.1103/PhysRevE.79.016706
Spencer, T., Halliday, I., & Care, C. (2011). A local lattice Boltzmann method for multiple immiscible fluids and dense suspensions of drops. In Philosophical transactions. Mathematical, physical, and engineering sciences, 369 (1944), 2255-2263. The royal society: http://rsta.royalsocietypublishing.org/