| Zugriffsnummer | 39655 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Numerical study of the mixing inside a jet stirred reactor using large eddy simulations |
| Autor(in); Institution |
Esmaeelzade, Ghazaleh; 3.5, Explosionsschutz in der Energietechnik, PTB-Braunschweig
Moshammer, Kai; 3.3, Thermophysikalische Größen, PTB-Braunschweig
Fernandes, Ravi; 3.3, Thermophysikalische Größen, PTB-Braunschweig
Markus, Detlev; 3.5, Explosionsschutz in der Energietechnik, PTB-Braunschweig
Großhans, Holger; 3.5, Explosionsschutz in der Energietechnik, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of International Conference on Jets, Wakes and Separated Flows:(2017), 6 S. |
| Konferenzangaben | 6th International Conference on Jets, Wakes and Separated Flows : 6th ICJWSF 2017, Cincinnati, 9 - 12, Oktober, 2017, USA |
| Zusammenfassung | Jet Stirred Reactors (JSR) have been extensively used in the last decades to investigate gas phase chemical kinetics. Inside the JSR efficient mixing through turbulent jets is required in order to obtain homogeneous compositions. One of the best ways to achieve the mixing of the gas phase is to use turbulent jets obtained from nozzles. In our study, Computational Fluid Dynamics (CFD) simulations were applied to predict the mixing and flow field characteristics inside a reactor. The studied geometry is similar to the JSR design described in Ref [Dagaut et al.,J. Phys. E:Sci. Instrum., vol. 19, no. 3, p. 207, 1986] and consists of a spherical chamber with a diameter of 40 mm. Therein, four inclined nozzles of an orifice diameter of 1 mm are located in the equatorial plane. Large-Eddy Simulations (LES) were used to compute the residence time distribution and the mixing quality inside the JSR. Our simulations have concerned a non-reacting mixture at ambient conditions. The results agree well with tracer-decay data from literature, and with a CFD analysis of the mixing rate based on the Reynolds-Averaged Navier-Stokes (RANS) approach. Our highly-resolved simulations enable us to provide detailed information concerning the instantaneous turbulent structures which effectuate mixing inside the JSR. |
Zitierung
Esmaeelzade, G., Moshammer, K., Fernandes, R., Markus, D., & Großhans, H. (2017). Numerical study of the mixing inside a jet stirred reactor using large eddy simulations. 6th International Conference on Jets, Wakes and Separated Flows : 6th ICJWSF 2017, Cincinnati, 9 - 12, Oktober, 2017, USA.