A5066468994- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Heat transfer and supercritical fluids
- Machine Learning in Materials Science
- Vehicle emissions and performance
- Thermochemical Biomass Conversion Processes
- Catalysis and Oxidation Reactions
- Catalytic Processes in Materials Science
- Atmospheric chemistry and aerosols
- Advanced Chemical Physics Studies
- Process Optimization and Integration
- Real-time simulation and control systems
- Aerospace Engineering and Energy Systems
- Hydraulic and Pneumatic Systems
- Combustion and Detonation Processes
- Energy Harvesting in Wireless Networks
- Antenna Design and Optimization
- Computational Fluid Dynamics and Aerodynamics
- Petroleum Processing and Analysis
- solar cell performance optimization
- Computational Drug Discovery Methods
- Antenna Design and Analysis
- Aerospace Engineering and Control Systems
- Spacecraft Dynamics and Control
- Global Energy and Sustainability Research
Technical University of Munich
2022-2024
Massachusetts Institute of Technology
2019-2022
Northeastern University
2020
Brown University
2020
Technion – Israel Institute of Technology
2020
RWTH Aachen University
2013-2018
Institut Jean Le Rond d'Alembert
2014-2018
Laboratoire de Dynamique des Fluides
2017
Sorbonne Université
2014-2016
Centre National de la Recherche Scientifique
2014-2016
In chemical kinetics research, kinetic models containing hundreds of species and tens thousands elementary reactions are commonly used to understand predict the behavior reactive systems. Reaction Mechanism Generator (RMG) is a software suite developed automatically generate such by incorporating extrapolating from database known thermochemical parameters. Here, we present recent version 3 release RMG highlight improvements since previously published description v1.0. Most notably, can now...
In chemical kinetics research, kinetic models containing hundreds of species and tens thousands elementary reactions are commonly used to understand predict the behavior reactive systems. Reaction Mechanism Generator (RMG) is a software suite developed automatically generate such by incorporating extrapolating from database known thermochemical parameters. Here, we present recent version 3 release RMG highlight improvements since previously published description v1.0. One important change...
Fuel microchannels for regenerative cooling are receiving increasing attention in advanced aviation technologies. Those allow heat integration between the endothermic cracking of jet fuels and their subsequent combustion. In this work, a detailed elementary-step kinetic model is developed to gain insights into chemistry Jet A surrogate (n-dodecane, isooctane, n-propyl benzene, 1,3,5-trimethylbenzene), which allows further optimization those dedicated procedure described automated generation...
The hyperloop concept envisions a low pressure tube and capsules, called pods, traveling at the speed of commercial aircraft as sustainable, future-proof mass transportation system between cities. However, in contrast to use case such system, detailed technical is still under development. One challenging difference comparison other modes lies infrastructure, which hard change long term therefore allows few iterations only. This study’s key contribution showcase conceptual design decisions 24...
Advancing permanent magnet arrays for linear electric machines is a compelling endeavor with the potential to further improve efficiencies in fields of power generation or passenger and cargo transportation. Permanent magnets offer an unparalleled advantage by providing consistent efficient source magnetic flux density without need external input. This remarkable property allows development smaller, lighter, more energy-efficient machines, making them ideal applications several industries....
The present interdisciplinary study combines electromagnetics and combustion to unveil an original basic experiment displaying a spontaneous flame instability that is mitigated as the non-premixed sooting experiences magnetic perturbation. This mitigation reproduced by direct numerical simulations be further elucidated flow stability analysis. A key role in stabilization process attributed momentum thermochemistry coupling force, acting mainly on paramagnetic oxygen, contributes sustain....
Abstract Using Reaction Mechanism Generator (RMG), we have automatically constructed a detailed mechanism for acetylene pyrolysis, which predicts formation of polycyclic aromatic hydrocarbons (PAHs) up to pyrene. To improve the data available pathways from naphthalene pyrene, new high‐pressure limit reaction rate coefficients and species thermochemistry were calculated using combination electronic structure literature quantum calculations. Pressure‐dependent kinetics C H potential energy...
Turbulent mixing in a methane–oxygen recessed injector is studied using direct numerical simulations. The operating point chosen to be fuel-rich and at high pressure recreate representative environment for space propulsion applications. results are used investigate the transport of turbulent mixture fraction statistics validity conventional models. It observed that molecular diffusion only relevant near boundary layer injection recess cavity recirculation zone. Moreover, axial direction...
Direct numerical simulations (DNS) are conducted to analyze the effect of recess in mixing and combustion performance gaseous methane—oxygen injection systems. The length is varied from 0 2 injector diameters sensitivity various physical processes this geometrical feature. It found that enhances development Kelvin–Helmholtz instabilities (KHI), due more consistent jet flow disposition at plane, higher velocities. A Strouhal number StrR≈0.22, based on diameter average reacting velocity for...
The aeronautical sector faces challenges in meeting its net-zero ambition by 2050. To achieve this target, much effort has been devoted to exploring sustainable aviation fuels (SAF). Accordingly, we evaluated the technical performance of potential SAF production an integrated first- and second-generation sugarcane biorefinery focusing on Brazil. CO2 equivalent renewability exergy indexes were used assess environmental impact throughout supply chain. In addition, efficiency (ηB) average...
This paper presents the design process and resulting technical concept for an integrated hyperloop system, aimed at realizing efficient high-speed ground transportation. study integrates various functions into a coherent technically feasible solution, with key decisions that optimize performance cost-efficiency. An iterative domain-specific experts, regular reviews, dataset single source of truth were employed to ensure continuous collective progress. The proposed system features maximum...
Based on commercial passenger-carrying airships like LZ129 or R100, a hypothetical electric rigid framed airship including solar cell covered surface and lithium-ion battery is designed. The size of the coverage with cells are selected such that long-haul flights possible. To simulate flight times, weather data from 2019 time-dependent irradiation used. Travel route use optimised in order to reduce times. For mid-range case for passenger freight transport, travel times have been calculated....
Oil system architecture in aero engines has remained almost the same for last 30 years. At least one oil feed pump is responsible distributing pressurized into bearing chambers, and several scavenge pumps are evacuating chambers from air mixture. Air used as sealing medium dominant terms of volume occupation expansion phenomena. In order to simplify thus improve system's reliability with less mechanical parts also decrease weight, an ejector been designed scavenging chambers. The idea behind...
In chemical kinetics research, kinetic models containing hundreds of species and tens thousands elementary reactions are commonly used to understand predict the behavior reactive systems. Reaction Mechanism Generator (RMG) is a software suite developed automatically generate such by incorporating extrapolating from database known thermochemical parameters. Here, we present recent version 3 release RMG highlight improvements since previously published description v1.0. One important change...
Reversible dimerization of coronene is implemented into a hybrid method moment based soot model and used with newly generated reduced mechanism for ethylene combustion. The employed semi-automated reduction approach includes novel error function using curve matching species mole fraction, temperature, heat release profiles counterflow diffusion flame, which was added to path flux analysis subsequent sensitivity analysis. mechanism, maintains predictability selected higher aromatics, while...