Is it possible to optimize the turbulent combustion of a low swirl burner by using resonance in turbu- lence? To that end an active grid is constructed that consists of two perforated disks of which one is rotat- ing, creating a system of pulsating jets, which in the end can be used as a central blocking grid of a low swirl burner. The turbulence originating from this grid is studied by hot wire anemometry to see if there is a frequency for maximal response. Although no res- onant enhancement of the turbulent kinetic energy or the dissipation rate is observed, the results for the two different sets of disks show that significant turbulent fluctuations are introduced mainly in the energy con- taining range and partially in the inertial sub range. These fluctuations represent up to 25% of the total tur- bulent energy and are not caused by pulsations of the mean flow.
|Title of host publication||Proceedings of the 9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM9)|
|Place of Publication||Thessaloniki|
|Number of pages||6|
|ISBN (Print)||not assigned|
|Publication status||Published - Jun 2012|
|Event||9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, ETMM 2012 - Macedonia Palace Hotel, Thessaloniki, Greece|
Duration: 6 Jun 2012 → 8 Jun 2012
Conference number: 9
|Conference||9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, ETMM 2012|
|Period||6/06/12 → 8/06/12|
- MACS-MMS: Multiscale Modelling and Simulation
Verbeek, A. A., Pos, R. C., Stoffels, G. G. M., Geurts, B. J., & van der Meer, T. H. (2012). The generation of resonant turbulence for a premixed burner. In Proceedings of the 9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM9) (pp. 1-6). Thessaloniki: ERCOFTAC.