Calculation of recirculating flow behind flame-holders
Abstract
Adoptability of standard K-epsilon turbulence model for numerical calculation of recirculating flow is discussed. Many computations of recirculating flows behind bluff-bodies used as flame-holders in afterburner of aeroengine have been completed. Blocking-off method to treat the incline walls of the flame-holder gives good results. In isothermal recirculating flows the flame-holder wall is assumed to be isolated. Therefore, it is possible to remove the inactive zone from the calculation domain in programming to save computer time. The computation for a V-shaped flame-holder exhibits an interesting phenomenon that the recirculation zone extends to the cavity of the flame-holder.
- Publication:
-
Acta Aeronautica et Astronautica Sinica
- Pub Date:
- October 1985
- Bibcode:
- 1985AcAAS...6..495Z
- Keywords:
-
- Afterburning;
- Aircraft Engines;
- Computational Fluid Dynamics;
- Engine Design;
- Flame Holders;
- Recirculative Fluid Flow;
- Bluff Bodies;
- K-Epsilon Turbulence Model;
- Turbulent Flow;
- Fluid Mechanics and Heat Transfer