Power-Law Wrinkling Turbulence-Flame Interaction Model for Astrophysical Flames
arXiv:1402.4527 · doi:10.1088/0004-637X/784/2/174
Abstract
We extend a model for turbulence-flame interactions (TFI) to consider astrophysical flames with a particular focus on combustion in type Ia supernovae. The inertial range of the turbulent cascade is nearly always under-resolved in simulations of astrophysical flows, requiring the use of a model in order to quantify the effects of subgrid-scale wrinkling of the flame surface. We provide implementation details to extend a well-tested TFI model to low-Prandtl number flames for use in the compressible hydrodynamics code FLASH. A local, instantaneous measure of the turbulent velocity is calibrated for FLASH and verification tests are performed. Particular care is taken to consider the relation between the subgrid rms turbulent velocity and the turbulent flame speed, especially for high-intensity turbulence where the turbulent flame speed is not expected to scale with the turbulent velocity. Finally, we explore the impact of different TFI models in full-star, three-dimensional simulations of type Ia supernovae.
20 pages, 12 figures, accepted to the Astrophysical Journal
References in corpus (22)
- Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey
- Secondary Maximum in the Near-Infrared Lightcurves of Type Ia Supernovae
- 3D deflagration simulations leaving bound remnants: a model for 2002cx-like Type Ia supernovae
- A three-dimensional deflagration model for Type Ia supernovae confronted with observations
- Failed-Detonation Supernovae: Sub-Luminous Low-Velocity Ia Supernovae and Their Kicked Remnant White Dwarfs with Iron-Rich Cores
- On the Origin of the Type Ia Supernova Width-Luminosity Relation
- The Interaction of High-Speed Turbulence with Flames: Turbulent Flame Speed
- A localised subgrid scale model for fluid dynamical simulations in astrophysics I: Theory and numerical tests
- Capturing the Fire: Flame Energetics and Neutronizaton for Type Ia Supernova Simulations
- A localised subgrid scale model for fluid dynamical simulations in astrophysics II: Application to type Ia supernovae
- The Viscous Evolution of White Dwarf Merger Remnants
- Type Ia Supernova: Calculations of Turbulent Flames Using the Linear Eddy Model
- Flame Evolution During Type Ia Supernovae and the Deflagration Phase in the Gravitationally Confined Detonation Scenario
- The Post-Merger Magnetized Evolution of White Dwarf Binaries: The Double-Degenerate Channel of Sub-Chandrasekhar Type Ia Supernovae and the Formation of Magnetized White Dwarfs
- Beyond the bubble catastrophe of Type Ia supernovae: Pulsating Reverse Detonation models
- Distributed Flames in Type Ia Supernovae
- On variations of the brightness of type Ia supernovae with the age of the host stellar population
- Evaluating Systematic Dependencies of Type Ia Supernovae: The Influence of Deflagration to Detonation Density
- Propagation of the First Flames in Type Ia Supernovae
- Initiation of the detonation in the gravitationally confined detonation model of Type Ia supernovae
- On the Evolution of Thermonuclear Flames on Large Scales
- Turbulent Oxygen Flames in Type Ia Supernovae
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- A Tracer Method for Computing Type Ia Supernova Yields: Burning Model Calibration, Reconstruction of Thickened Flames, and Verification for Planar Detonations
- Models for Type Ia supernovae and related astrophysical transients
- Rayleigh-Taylor Unstable Flames -- Fast or Faster?
- Type Ia Supernova Explosions from Hybrid Carbon-Oxygen-Neon White Dwarf Progenitors
- Explosive Nucleosynthesis in Near-Chandrasekhar-mass White Dwarf Models for Type Iax Supernovae: Dependence on Model Parameters
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- Rayleigh-Taylor unstable flames at higher Reynolds number
- Type Ia Supernova Explosions from Hybrid Carbon-Oxygen-Neon White Dwarf Progenitors That Have Mixed During Cooling
- The Intrinsic Stochasticity of the Ni Distribution of Single-Degenerate Type Ia Supernovae
- Modeling subgrid combustion processes in simulations of thermonuclear supernovae
- Cosmic Chandlery with Thermonuclear Supernovae