Identification of flow structures in a closed chamber in the presence of a needle plasma actuator

G Mehdi, S Bonuso, MG De Giorgi - Physics of Fluids, 2022 - pubs.aip.org
This study deals with the experimental characterization of the induced flow dynamics by a
disk-needle-type plasma actuator driven by a sinusoidal generator and located in a …

Plasma assisted Re-ignition of aeroengines under high altitude conditions

G Mehdi, S Bonuso, MG De Giorgi - Aerospace, 2022 - mdpi.com
Re-ignition of aeroengines under high altitude conditions is of great importance to the safety
and use of lean-burn flame. This study is focused on the experimental and numerical …

Comparative Analysis of Flame Propagation and Flammability Limits of CH4/H2/Air Mixture with or without Nanosecond Plasma Discharges

G Mehdi, MG De Giorgi, S Bonuso, ZA Shah, G Cinieri… - Aerospace, 2023 - mdpi.com
This study investigates the kinetic modeling of CH4/H2/Air mixture with nanosecond pulse
discharge (NSPD) by varying H2/CH4 ratios from 0 to 20% at ambient pressure and …

Experimental and numerical investigation of a surface sliding discharge in a supersonic flow with an oblique shock wave

IV Mursenkova, IE Ivanov, Y Liao, IA Kryukov - Energies, 2022 - mdpi.com
This study presents an experimental and numerical investigation on a surface sliding
discharge in a supersonic airflow in the presence of an oblique shock wave. In experiments …

Imprecise P-Box Sensitivity Analysis of an Aero-Engine Combustor Performance Simulation Model Considering Correlated Variables

H Tang, S Zhang, J Li, L Kong, B Zhang, F Xing, H Luo - Energies, 2023 - mdpi.com
Uncertainties are widely present in the design and simulation of aero-engine combustion
systems. Common non-probabilistic convex models are only capable of processing …

Characterization of Flame Behavior and Blowout Limits at Different Air Preheating Temperatures in Plasma Assisted Stabilized Combustor

MG De Giorgi, G Mehdi… - … Expo: Power for …, 2022 - asmedigitalcollection.asme.org
This study investigates the flame characterization near to lean blowout (LBO) limits at
different pre-heating temperatures in lifted swirl methane-air plasma discharge stabilized …

Development of plasma actuators for re-ignition of aeroengine under high altitude conditions

G Mehdi, B Sara - IOP Conference Series: Materials Science …, 2022 - iopscience.iop.org
Re-ignition of aeroengine under high altitude conditions is of great importance to the safety
and use of lean-burn engines. The present work investigated the experimental and …

Development of a Needle Type Nanosecond Pulsed Plasma Actuator for the Enhancement of Blowout Limits in a Lifted Stabilized Combustor

MG De Giorgi, S Bonuso… - … Expo: Power for …, 2023 - asmedigitalcollection.asme.org
The lift-off phenomenon in turbulent jet flames has garnered significant attention, but it also
presents the risk of fuel leakage and flame blowout. Stabilizing flames remains a significant …

Three-Dimensional Direct Numerical Simulation of Near-Field Ozone-Enhanced Lean Premixed Syngas Turbulent Jet Flame

C Xu, J Lin, Z Wang, K Wan, S Sun, Z Zhou - Energies, 2022 - mdpi.com
Due to its enhancement in the flame speed, ozone added in lean premixed syngas turbulent
jet flame was investigated by the three-dimensional direct numerical simulation method in …

Numerical modelling of partially premixed low-swirl flames for aero-engine applications

L Langone - 2022 - flore.unifi.it
The development of innovative aero-engine combustors has been devoted to drastically
reducing pollutants emissions and improving engine performances in recent years. These …