Large Eddy Simulation of a High Reynolds Number Swirling Flow in a Conical Diffuser

Investigation of Metal Powder Injection into a Combustion Chamber by Large Eddy Simulation for Power to X Studies

“…Schlu ¨ter et al considered the description of the flow conditions in a combustion chamber by means of LES to be decisive and therefore made a proposal [5] how a combination of the LES of a combustion chamber can be realized under the simultaneous calculation of the pressure stages (compressor, turbine) by means of RANS. Duprat et al report in [6] about LES of the gas flow inside a diffuser and the appearing helical rotating vortices and small-scale swirl structures. Zhang et al and Yang et al were able to show in LES that it is possible to strongly influence recirculation areas or largely suppress their formation by introducing a Karman-vortex generator in planar and conical diffuser [7,8].…”