A conservative Low Mach number projection method for reacting flow modelling
Conference
·
OSTI ID:83887
A conservative Low Mach number predictor-corrector projection scheme is developed, and implemented on reacting flow in a closed domain. The stagnation pressure is computed with an integral constraint that allows a conservative update of the density field using the non-conservative energy equation and the continuity equation. A premixed flame-vortex interaction is studied to examine the mutual effects of unsteady flow and reaction at the flame front. Second order convergence is demonstrated. Flame statistics axe reported and compared to available data. A super-adiabatic condition is observed behind the flame due to the pressure rise in the domain. The implications for flame response to the flow field are studied, revealing significant deviation from one-dimensional stagnation flame behaviour. Time history effects related to pressure rise are found to have a significant role in determining the flame peak reaction rate response to flow induced stretch.
- Research Organization:
- Sandia National Labs., Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 83887
- Report Number(s):
- SAND--95-8497C; CONF-950731--1; ON: DE95010754
- Country of Publication:
- United States
- Language:
- English
Similar Records
A semi-implicit numerical scheme for reacting flow. 1: Stiff chemistry
AMR for low Mach number reacting flow
Confined superadiabatic premixed flame-flow interaction
Journal Article
·
Wed Jul 01 00:00:00 EDT 1998
· Journal of Computational Physics
·
OSTI ID:638434
AMR for low Mach number reacting flow
Conference
·
Thu Jan 15 23:00:00 EST 2004
·
OSTI ID:821336
Confined superadiabatic premixed flame-flow interaction
Technical Report
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:661463