Guest editorial

This special issue of the International Journal of Heat and Mass Transfer is dedicated to the life and work of Professor D. Brian Spalding FRS, known more familiarly to his many friends and colleagues around the world as Brian or DBS. The first paper presents a summary of some of the scientific and engineering contributions of DBS up to the present time – and, as his wife Colleen wrote to us recently, he is someone still with a lot more to do. The invited papers have been written by a number of those friends and colleagues, and are devoted to some of the many topics which have attracted Brian’s attention over the years: combustion, computational methods, CFD/HT applied to equipment, laminar and turbulent flow modelling and two phase flow. We also include a brief biography of Brian, and a personal recollection written by Akshai Runchal.