The application of Large Eddy Simulation to Turbulent Combusting flows is described and results are presented for a turbulent hydrogen-air jet flame and for a model can-type gas turbine Combustion chamber. In both cases the results are in good agreement with measurements. For the hydrogen flame and in contrast to the results of other approaches the profiles of all quantities and the rate of spread of the jet were all accurately reproduced by the computations without any modification to the model constants being necessary. (C) 2002 Elsevier Science B.V. All rights reserved.