Model reduction in chemical dynamics: slow invariant manifolds, singular perturbations, thermodynamic estimates, and analysis of reaction graph
AN Gorban - Current Opinion in Chemical Engineering, 2018 - Elsevier
The paper has two goals:(1) It presents basic ideas, notions, and methods for reduction of
reaction kinetics models: quasi-steady-state, quasi-equilibrium, slow invariant manifolds …
reaction kinetics models: quasi-steady-state, quasi-equilibrium, slow invariant manifolds …
PyCSP: A Python package for the analysis and simplification of chemically reacting systems based on Computational Singular Perturbation
RM Galassi - Computer Physics Communications, 2022 - Elsevier
PyCSP is a Python package for the analysis and simplification of chemically reacting
systems, using algorithms based on the Computational Singular Perturbation (CSP) theory …
systems, using algorithms based on the Computational Singular Perturbation (CSP) theory …
[HTML][HTML] A review of uncertainty quantification and its applications in numerical simulation of scramjet combustor
L Li, L Zhang, B Zhang, H Liu, Z Zheng - International Journal of …, 2023 - Elsevier
Engine design heavily relies on numerical simulation of engine environments, which greatly
accelerates the design iteration and increases efficiency. Nonetheless, for a long time, the …
accelerates the design iteration and increases efficiency. Nonetheless, for a long time, the …
An adaptive time-integration scheme for stiff chemistry based on computational singular perturbation and artificial neural networks
We leverage the computational singular perturbation (CSP) theory to develop an adaptive
time-integration scheme for stiff chemistry based on a local, projection-based, reduced order …
time-integration scheme for stiff chemistry based on a local, projection-based, reduced order …
Reduction of large-scale chemical mechanisms using global sensitivity analysis on reaction class/sub-mechanism
The reliable chemical mechanisms with compact scale play an important role in engine
modeling. In this research, a new method was presented to reduce the large-scale reaction …
modeling. In this research, a new method was presented to reduce the large-scale reaction …
Development and use of machine-learnt algebraic Reynolds stress models for enhanced prediction of wake mixing in low-pressure turbines
HD Akolekar, J Weatheritt… - Journal of …, 2019 - asmedigitalcollection.asme.org
Nonlinear turbulence closures were developed that improve the prediction accuracy of wake
mixing in low-pressure turbine (LPT) flows. First, Reynolds-averaged Navier–Stokes (RANS) …
mixing in low-pressure turbine (LPT) flows. First, Reynolds-averaged Navier–Stokes (RANS) …
Uncertainty quantification analysis of Reynolds-averaged Navier–Stokes simulation of spray swirling jets undergoing vortex breakdown
The computational fluid dynamics-based design of next-generation aeronautical combustion
chambers is challenging due to many geometrical and operational parameters to be …
chambers is challenging due to many geometrical and operational parameters to be …
[HTML][HTML] Impact of chemical modeling on the numerical analysis of a LOx/GCH4 rocket engine pintle injector
Liquid rocket engines equipped with LOx/GCH4 pintle injectors represent a promising
technology when a large throttling capability is required. Still, limited amounts of data are …
technology when a large throttling capability is required. Still, limited amounts of data are …
Family of Skeletal Reaction Mechanisms for Methane–Oxygen Combustion in Rocket Propulsion
Analyzing methane–oxygen rocket propellant combinations requires suitable modeling of
the major chemical reaction processes. Although several detailed kinetic mechanisms for …
the major chemical reaction processes. Although several detailed kinetic mechanisms for …
Unsteady RANS simulations with uncertainty quantification of spray combustor under liquid rocket engine relevant conditions
View Video Presentation: https://doi. org/10.2514/6.2023-2148. vid We present the
numerical characterization under uncertainty of a single-element liquid-rocket-engine fueled …
numerical characterization under uncertainty of a single-element liquid-rocket-engine fueled …