Computational assessment towards understanding the energy conversion and combustion process of lean mixtures in passive pre-chamber ignited engines

J Benajes, R Novella, J Gomez-Soriano… - Applied Thermal …, 2020 - Elsevier
In this paper, a computational study was performed using a combination of several
numerical tools to better understand the limiting aspects of combustion in a passive pre …

Experimental and numerical analysis of passive pre-chamber ignition with EGR and air dilution for future generation passenger car engines

R Novella, J Pastor, J Gomez-Soriano, I Barbery… - 2020 - sae.org
Nowadays the combination of strict regulations for pollutant and CO2 emissions, together
with the irruption of electric vehicles in the automotive market, is arising many concerns for …

A data-driven approach using machine learning for early detection of the lean blowout

VR Hasti, A Navarkar, JP Gore - Energy and AI, 2021 - Elsevier
A data-driven approach using machine learning is presented for the identification of the
critical flame location for the early detection of an incipient lean blowout (LBO) in a realistic …

[HTML][HTML] A 2-D DNS study of the effects of nozzle geometry, ignition kernel placement and initial turbulence on prechamber ignition

S Benekos, CE Frouzakis, GK Giannakopoulos… - Combustion and …, 2021 - Elsevier
A parametric direct numerical simulation study was conducted to investigate the effects of
the initial flow field (quiescent or turbulent), nozzle inlet sharpness and width, main chamber …

High-fidelity numerical simulation of longitudinal thermoacoustic instability in a high-pressure subscale rocket combustor

VR Hasti, R Ranjan - Aerospace Science and Technology, 2024 - Elsevier
A detailed analysis of thermoacoustic combustion instability in a subscale rocket combustor
at high pressure is reported in this paper using the high-fidelity large-eddy simulation (LES) …

[HTML][HTML] Modelling of combustion and knock onset risk in a high-performance turbulent jet ignition engine

A Bianco, F Millo, A Piano - Transportation Engineering, 2020 - Elsevier
The reduction of CO 2 emissions, and hence of fuel consumption, is currently a key driver for
the development of innovative SI engines for passenger car applications. In recent years …

Scalar predictors of premixed gas ignition by a suddenly-starting hot jet

ME Feyz, VR Hasti, JP Gore, A Chowdhury… - International Journal of …, 2019 - Elsevier
Hot-jet ignition is usually designed to reduce emissions in lean-burn combustion engines,
and has potential in enabling novel pressure-gain combustion. Inspired by our experimental …

Computation of conventional and alternative jet fuel sensitivity to lean blowout

VR Hasti, P Kundu, S Som, SH Won, FL Dryer… - Journal of the Energy …, 2022 - Elsevier
Abstract Large Eddy Simulations (LES) are performed to compute the sensitivity of a
conventional (A-2) and an alternate bio-jet (C-1) fuel to Lean Blowout (LBO). A realistic …

Numerical simulations and analysis of the turbulent flow field in a practical gas turbine engine combustor

VR Hasti, P Kundu, S Som… - Proceedings of the …, 2022 - journals.sagepub.com
The turbulent flow field in a practical gas turbine combustor is very complex because of the
interactions between various flows resulting from components like multiple types of swirlers …

Large eddy simulation of round jets with mild temperature difference

S Qin, G Chen, F Shan, W Liu, B Zang - International Journal of Mechanical …, 2024 - Elsevier
Understanding the behaviour of hot jets is crucial for various engineering and environmental
applications. The present work studies the influence of heat transfer on the dynamics of …