  A novel jet-stirred combustion chamber is designed to study turbulent
premixed flames. In the new approach, multiple impinging turbulent jets are
used to stir the mixture. It is well known that pair of counterflowing
turbulent jets produces nearly a constant intensity along the jet axes. In this
study, different numbers of impinging jets in various configurations are used
to produce isotropic turbulence intensity. FLUENT simulations have been
conducted to assess the viability of the proposed chamber. In order to be able
to compare different configurations, three different non dimensional indices
are introduces. Mean flow index, Homogeneity index, and Isotropicity index.
Using these indices one can compare various chambers including conventional
Fan-stirred Reactor. Results show that a concentric inlet/outlet chamber with 8
inlets and 8 outlets with inlet velocity of 20 m/s and initial intensity of 15%
produces near zero mean flow and 2.5 m/s turbulence intensity which is much
more higher than reported values for Fan-stirred chamber.
