238 citations · 965 across the 17 of their papers we have counts for
17 papers
First-Principles Turbulence-Driven Deflagration-to-Detonation Transition Mechanism for Near-Chandrasekhar Mass White Dwarf Progenitors
Krut Patel, Akshay Dongre, Robert Fisher +4
Type Ia supernovae (SNe Ia) play an important role throughout astrophysics, most notably as standardizable cosmological candles. Yet, their stellar progenitors and explosion mechan…
Turbulence in Focus: Benchmarking Scaling Behavior of 3D Volumetric Super-Resolution with BLASTNet 2.0 Data
Wai Tong Chung, Bassem Akoush, Pushan Sharma +9
Analysis of compressible turbulent flows is essential for applications related to propulsion, energy generation, and the environment. Here, we present BLASTNet 2.0, a 2.2 TB networ…
Particle Pair Dispersion and Eddy Diffusivity in a High-Speed Premixed Flame
Ryan Darragh, Colin A. Z. Towery, Alexei Y. Poludnenko +1
Turbulent mixing is a physical process of fundamental importance in high-speed premixed flames. This mixing results in enhanced transport of temperature and chemical scalars, leadi…
Detonation initiation by compressible turbulence thermodynamic fluctuations
Colin A. Z. Towery, Alexei Y. Poludnenko, Peter E. Hamlington
Theory and computations have established that thermodynamic gradients created by hot spots in reactive gas mixtures can lead to spontaneous detonation initiation. However, the curr…
A Unified Mechanism for Unconfined Deflagration-to-Detonation Transition in Terrestrial Chemical Systems and Type Ia Supernovae
Alexei Y. Poludnenko, Jessica Chambers, Kareem Ahmed +2
The nature of type Ia supernovae (SNIa) - thermonuclear explosions of white dwarf stars - is an open question in astrophysics. Virtually all existing theoretical models of normal,…
Pulsating instability and self-acceleration of fast turbulent flames
A. Y. Poludnenko
(Abridged) A series of three-dimensional numerical simulations is used to study the intrinsic stability of high-speed turbulent flames. Calculations model the interaction of a full…