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[HTML][HTML] Adaptive coarse graining method for energy transfer and dissociation kinetics of polyatomic species
A novel reduced-order method is presented for modeling reacting flows characterized by
strong non-equilibrium of the internal energy level distribution of chemical species in the …
strong non-equilibrium of the internal energy level distribution of chemical species in the …
Kinetic study of low-temperature CO2 plasmas under non-equilibrium conditions. I. Relaxation of vibrational energy
A kinetic model describing the time evolution of∼ 70 individual CO 2 (X 1 Σ+) vibrational
levels during the afterglow of a pulsed DC glow discharge is developed in order to …
levels during the afterglow of a pulsed DC glow discharge is developed in order to …
Flow-radiation coupling in hypersonic wakes using reduced-order non-Boltzmann models
The current work presents a computationally tractable simulation methodology combining
different model-reduction techniques for resolving non-Boltzmann thermodynamics …
different model-reduction techniques for resolving non-Boltzmann thermodynamics …
Assessment of machine learning methods for state-to-state approach in nonequilibrium flow simulations
State-to-state numerical simulations of high-speed reacting flows are the most detailed but
also often prohibitively computationally expensive. In this work, we explore the usage of …
also often prohibitively computationally expensive. In this work, we explore the usage of …
Novel approach for CO2 state-to-state modeling and application to multidimensional entry flows
This paper presents a physics-based macroscopic model for the description of
nonequilibrium effects in CO2 flows. The starting point is the development of a vibrational …
nonequilibrium effects in CO2 flows. The starting point is the development of a vibrational …
Comparative analysis of reduced-order spectral models and grou** strategies for non-equilibrium radiation
Radiative transfer calculations in complex three-dimensional domains are plagued by
computational bottlenecks due to the combined cost of resolving spectral, angular, and …
computational bottlenecks due to the combined cost of resolving spectral, angular, and …
An Experimental Study of Thermochemical Nonequilibrium
An experimental study of CO 2 flows subjected to expanding conditions relevant to Mars
entry is presented. A condition with a nominal velocity of 4.0 km/s was generated in the X2 …
entry is presented. A condition with a nominal velocity of 4.0 km/s was generated in the X2 …
Reduced-order modeling of non-Boltzmann thermochemistry and radiation for hypersonic flows
A Sahai - 2019 - ideals.illinois.edu
The non-equilibrium aerothermal environment during hypersonic flows is determined by the
interaction between a multitude of disparate physical phenomena with varying characteristic …
interaction between a multitude of disparate physical phenomena with varying characteristic …
Refitting of detailed CO2 IR databases to vibrationally specific databases tailored for aerothermodynamic flows
D tabases such as CDSD or HITRAN were initially tailored for remote sensing applications,
where the transmissivity of an atm over a given spectral window has to be very precisely …
where the transmissivity of an atm over a given spectral window has to be very precisely …
Reduced-order modeling of non-equilibrium kinetics and radiation for CO2 axisymmetric wake flows
This paper presents a physics-based reduced-order model for describing vibrational non-
equilibrium in CO2 flows. The use of the coarse grain approach, which entails grou** …
equilibrium in CO2 flows. The use of the coarse grain approach, which entails grou** …