Entropy generation and CO2 emission in presence of pulsating oscillations in a bifurcating thermoacoustic combustor with a Helmholtz resonator at off-design …

Y Guan, S Becker, D Zhao, J Xu, M Shahsavari… - Aerospace Science and …, 2023 - Elsevier
In this work, we develop a 2D numerical model of a Y-shaped bifurcating combustor with a
Helmholtz resonator attached. Propane (C 3 H 8) is fueled and burnt with air by applying …

Component-based reduced order modeling of large-scale complex systems

C Huang, K Duraisamy, C Merkle - Frontiers in Physics, 2022 - frontiersin.org
Large-scale engineering systems, such as propulsive engines, ship structures, and wind
farms, feature complex, multi-scale interactions between multiple physical phenomena …

Large-eddy simulation and challenges for projection-based reduced-order modeling of a gas turbine model combustor

N Arnold-Medabalimi, C Huang… - … Journal of Spray and …, 2022 - journals.sagepub.com
Computationally efficient modeling of gas turbine combustion is challenging due to the
chaotic multi-scale physics and the complex non-linear interactions between acoustic …

The influence of spanwise nonuniformity on lean blowoff in bluff body stabilized turbulent premixed flames

CA Fugger, AW Caswell - Proceedings of the Combustion Institute, 2021 - Elsevier
New observations are reported of the processes leading up to lean blowoff (LBO) in a two-
dimensional confined bluff body flame by visualizing LBO from a spanwise perspective …

Quantitative Comparison of Large Eddy Simulations and Optical Diagnostics of Bluff-Body Premixed Flames with High and Low Approach Flow Turbulence

JN Squeo, J Sykes, AL Comer, BA Rankin… - AIAA SciTech 2024 …, 2024 - arc.aiaa.org
The accuracy of large eddy simulations of bluff-body premixed flames is assessed through
detailed comparison to experimental measurements acquired using a variety of modern …

Spanwise recirculation zone structure of a bluff body stabilized flame

CA Fugger, TP Gallagher, JP Sykes, AW Caswell - Combustion and Flame, 2020 - Elsevier
Conclusions This study shows that the recirculation zone behind a two-dimensional
confined bluff body flame is three-dimensional, and contains significant spanwise …

A modified thickened flame model for simulating extinction

AL Comer, TP Gallagher, K Duraisamy… - … Theory and Modelling, 2022 - Taylor & Francis
For large-eddy simulation of turbulent premixed reacting flows, major challenges stem from
the inability to resolve the flame in a computationally affordable manner. These challenges …

[图书][B] Towards high-performance discontinuous Galerkin simulations of reacting flows using Legion

K Bando - 2023 - search.proquest.com
High-fidelity scale-resolving computational fluid dynamics (CFD) simulations may provide a
path towards predictive capabilities for many engineering-relevant applications, in particular …

Corner Vortex Structures Within Recirculation Zones of Confined Bluff-Body Flows

JN Squeo, JP Sykes, AL Comer, TP Gallagher… - AIAA Journal, 2024 - arc.aiaa.org
The vortical structures of recirculation zones in turbulent nonreacting and premixed reacting
flows around confined equilateral-triangle bluff bodies are investigated using large-eddy …

Experimental analysis of transition to higher acoustic mode in syngas combustion dynamics

NA Baraiya, V Ramanan, B Nagarajan… - Journal of Propulsion …, 2022 - arc.aiaa.org
A turbulent syngas combustor is experimentally characterized for its transitionary stability
characteristics by continuously varying Reynolds number (Re). The combustor transits from …