1. Institute of High Performance Computing, 1 Fusionopolis Way, Number 16-16 Connexis, 138632 Singapore, Ian Wark Research Institute, University of South Australia, Mawson Lakes SA 5095, Australia, Particulate Fluids Processing Centre, Department of Mathematics and Statistics, The University of Melbourne, Parkville VIC 3010 Australia, and Department of Mathematics, National University of Singapore, 117543 Singapore