[HTML][HTML] A novel model for incorporation of differential diffusion effects in PDF simulations of non-premixed turbulent flames based on reaction-diffusion manifolds …

C Yu, P Breda, F Minuzzi, M Pfitzner, U Maas - Physics of Fluids, 2021 - pubs.aip.org
In this work, reaction-diffusion manifold (REDIM) reduced chemistry is used in the simulation
of turbulent non-premixed flames based on a transported-probability density function model …

Validation of an Eulerian stochastic fields solver coupled with reaction–diffusion manifolds on LES of methane/air non-premixed flames

P Breda, C Yu, U Maas, M Pfitzner - Flow, Turbulence and Combustion, 2021 - Springer
The Eulerian stochastic fields (ESF) combustion model can be used in LES in order to
evaluate the filtered density function to describe the process of turbulence–chemistry …

Influence of the chemical kinetics on the prediction of turbulent non-premixed jet CH flames

C Yu, L Cai, L Chopra, F Minuzzi, U Maas - Journal of the Brazilian Society …, 2023 - Springer
The present work focuses on the five different chemical mechanisms coupled with
probability density function (PDF) model to represent the local extinction and re-ignition …

Ignition delay times of methane/diethyl ether (DEE) blends measured in a rapid compression machine (RCM)

S Drost, M Werler, R Schießl, U Maas - Journal of Loss Prevention in the …, 2021 - Elsevier
Diethyl ether (DEE) is an interesting species for combustion for at least two reasons: On the
one hand, it is used as a kind of” worst case” reference substance for studies concerned with …

Sensitivity of reaction–diffusion manifolds (REDIM) method with respect to the gradient estimate

C Yu, U Maas - Combustion Theory and Modelling, 2022 - Taylor & Francis
In this work, a mathematical formulation for the calculation of the sensitivity of manifold-
based simplified chemistry with respect to the scalar gradient is derived. This methodology …

Automatic Construction of REDIM Reduced Chemistry with a Detailed Transport and Its Application to CH4 Counterflow Flames

C Yu, X Li, C Wu, A Neagos, U Maas - Energy & Fuels, 2020 - ACS Publications
Extinction limits are important quantities of counterflow diffusion flames. An accurate
prediction of extinction limits is necessary for the design of engineering combustion devices …

[HTML][HTML] Intrinsic low-dimensional manifold (ILDM)-based concept for the coupling of turbulent mixing with manifold-based simplified chemistry for the turbulent flame …

C Yu, P Shrotriya, U Maas - Physics of Fluids, 2022 - pubs.aip.org
Manifold based simplified chemistry is an efficient reduction technique for the chemical
kinetics, which aims to reduce the computational effort in numerical simulations. While the …

Reduced modeling of the NOx formation based on the reaction-diffusion manifolds method for counterflow diffusion flames

C Yu, P Shrotriya, X Li, U Maas - Proceedings of the Combustion Institute, 2023 - Elsevier
The accurate prediction of the NOx formation has gained great attention in view of clean
combustion. In this direction, a reliable reduction technique for the chemical kinetics is …

An iterative methodology for REDIM reduced chemistry generation and its validation for partially-premixed combustion

P Shrotriya, R Schießl, C Yu, V Bykov… - … Theory and Modelling, 2024 - Taylor & Francis
Partially-premixed flames (PPFs) incorporate effects of both premixed and non-premixed
types of reaction zones. The modelling of PPFs using manifold-based model reduction …

Graph-based, dynamics-preserving reduction of (bio) chemical systems

MR Roussel, T Soares - Journal of Mathematical Biology, 2024 - Springer
Complex dynamical systems are often governed by equations containing many unknown
parameters whose precise values may or may not be important for the system's dynamics. In …