All Outputs (19)

Computational singular perturbation analysis of brain lactate metabolism (2019)
Journal Article
Patsatzis, D. G., Tingas, E., Goussis, D. A., & Sarathy, S. M. (2019). Computational singular perturbation analysis of brain lactate metabolism. PLOS ONE, 14(12), Article e0226094. https://doi.org/10.1371/journal.pone.0226094

Lactate in the brain is considered an important fuel and signalling molecule for neuronal activity, especially during neuronal activation. Whether lactate is shuttled from astrocytes to neurons or from neurons to astrocytes leads to the contradictory... Read More about Computational singular perturbation analysis of brain lactate metabolism.

Direct Numerical Simulation of Turbulent Hydrogen-Air Premixed Flames at Preheated and Diluted Donditions (2019)
Presentation / Conference Contribution
Song, W., Hernandez Perez, F. E., Tingas, S., & Im, H. (2019, November). Direct Numerical Simulation of Turbulent Hydrogen-Air Premixed Flames at Preheated and Diluted Donditions. Paper presented at 72nd Annual Meeting of the APS Division of Fluid Dynami

Moderate or intense low-oxygen dilution (MILD) combustion is a promising concept to achieve high-performance and low-emission combustion simultaneously. In this study, we investigate the front propagation and burning characteristics in the MILD mode... Read More about Direct Numerical Simulation of Turbulent Hydrogen-Air Premixed Flames at Preheated and Diluted Donditions.

Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH3–H2O2/Air Mixtures (2019)
Journal Article
Khalil, A. T., Manias, D. M., Tingas, E., Kyritsis, D. C., & Goussis, D. A. (2019). Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH3–H2O2/Air Mixtures. Energies, 12(23), Article 4422. https://doi.org/10.3390/en12234422

The dynamics of a homogeneous adiabatic autoignition of an ammonia/air mixture at constant volume was studied, using the algorithmic tools of Computational Singular Perturbation. Since ammonia combustion is characterized by both unrealistically long... Read More about Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH3–H2O2/Air Mixtures.

Chemical Ignition Characteristics of Ethanol Blending with Primary Reference Fuels (2019)
Journal Article
Singh, E., Tingas, E., Goussis, D., Im, H. G., & Sarathy, S. M. (2019). Chemical Ignition Characteristics of Ethanol Blending with Primary Reference Fuels. Energy and Fuels, 33(10), 10185-10196. https://doi.org/10.1021/acs.energyfuels.9b01423

Synergistic octane blending behavior of ethanol with gasoline and its surrogates has been observed by many researchers. The nonlinear octane boosting tendency is observed at mid and high molar blends of ethanol in primary reference fuels. The present... Read More about Chemical Ignition Characteristics of Ethanol Blending with Primary Reference Fuels.

Heat Capacity Effect on Ethanol Preignition in a Shock Tube (2019)
Presentation / Conference Contribution
Bau Luong, M., Figueroa-Labastida, M., Tingas, S., Sow, A., Hernández Pérez, F. E., Badra, J., …Im, H. G. (2019, July). Heat Capacity Effect on Ethanol Preignition in a Shock Tube. Paper presented at 27th International Colloquium on the Dynamics of Ex

Topological and chemical characteristics of turbulent flames at MILD conditions (2019)
Journal Article
Manias, D. M., Tingas, E., Minamoto, Y., & Im, H. G. (2019). Topological and chemical characteristics of turbulent flames at MILD conditions. Combustion and Flame, 208, 86-98. https://doi.org/10.1016/j.combustflame.2019.06.031

Dominant physical processes that characterize the combustion of a lean methane/air mixture, diluted with exhaust gas recirculation (EGR), under turbulent MILD premixed conditions are identified using the combined approach of Computational Singular Pe... Read More about Topological and chemical characteristics of turbulent flames at MILD conditions.

Screening Chemical Kinetic Models: Collision Limit Violations and Ultra-Fast Time Scales (2019)
Presentation / Conference Contribution
Yalamanchi, K. K., Tingas, S., Im, H. G., & Sarathy, S. M. (2019, July). Screening Chemical Kinetic Models: Collision Limit Violations and Ultra-Fast Time Scales. Paper presented at 12th Asia-Pacific Conference on Combustion (ASPACC), Fukuoka, Japan

Detailed chemical kinetic models are widely used in combustion research and many new mechanisms for different fuels and reacting conditions are developed and published each year. Recent works have highlighted the need for error checking when preparin... Read More about Screening Chemical Kinetic Models: Collision Limit Violations and Ultra-Fast Time Scales.

Chemical Dynamics of the Ignition of NH3-H2O2 mixtures (2019)
Presentation / Conference Contribution
Khalil, A. T., Tingas, S., Kyritsis, D. C., & Goussis, D. A. (2019, June). Chemical Dynamics of the Ignition of NH3-H2O2 mixtures. Paper presented at 3rd International Conference of Chemical Engineering, Santander, Spain

Khalil, A. T., Tingas, S., Kyritsis, D. C., & Goussis, D. A. (2019, June). Chemical Dynamics of the Ignition of NH3-H2O2 mixtures. Paper presented at 3rd International Conference of Chemical Engineering, Santander, Spain.

Unravelling the chemical and transport characteristics of turbulent MILD combustion (2019)
Presentation / Conference Contribution
Manias, D. M., Tingas, S., Minamoto, Y., & Im, H. G. (2019, June). Unravelling the chemical and transport characteristics of turbulent MILD combustion. Paper presented at 7th International Workshop on Model Reduction in Reactive Flow (IWMRRF), Trondheim,

Manias, D. M., Tingas, S., Minamoto, Y., & Im, H. G. (2019, June). Unravelling the chemical and transport characteristics of turbulent MILD combustion. Paper presented at 7th International Workshop on Model Reduction in Reactive Flow (IWMRRF), Trondh... Read More about Unravelling the chemical and transport characteristics of turbulent MILD combustion.

CSP analysis of Local Sensitivity data (2019)
Presentation / Conference Contribution
Tingas, S., & Goussis, D. (2019, June). CSP analysis of Local Sensitivity data. Paper presented at 7th International Workshop on Model Reduction in Reactive Flow (IWMRRF), Trondheim, Norway

Tingas, S., & Goussis, D. (2019, June). CSP analysis of Local Sensitivity data. Paper presented at 7th International Workshop on Model Reduction in Reactive Flow (IWMRRF), Trondheim, Norway.

A Generalized Partially Stirred Reactor Combustion Closure Using Computational Singular Perturbation Analysis (2019)
Presentation / Conference Contribution
Quadarella, E., Stagni, A., Tingas, S., Cuoci, A., Parente, A., Faravelli, T., & Im, H. (2019, June). A Generalized Partially Stirred Reactor Combustion Closure Using Computational Singular Perturbation Analysis. Paper presented at 11th Mediterranean Comb

Quadarella, E., Stagni, A., Tingas, S., Cuoci, A., Parente, A., Faravelli, T., & Im, H. (2019, June). A Generalized Partially Stirred Reactor Combustion Closure Using Computational Singular Perturbation Analysis. Paper presented at 11th Mediterranean... Read More about A Generalized Partially Stirred Reactor Combustion Closure Using Computational Singular Perturbation Analysis.

A Unified Description of Flame Topologies at Different Turbulent Combustion Regimes Using Computational Singular Perturbation (2019)
Presentation / Conference Contribution
Tingas, S., & Im, H. (2019, May). A Unified Description of Flame Topologies at Different Turbulent Combustion Regimes Using Computational Singular Perturbation. Paper presented at 17th International Conference on Numerical Combustion, Aachen, Germany

Identifying turbulent flame topologies for unambiguous deter-mination of key flame quantities is a challenging task for high Karlovitz number conditions in which different scalar variable sexhibit drastically distinct characteristics. The present st... Read More about A Unified Description of Flame Topologies at Different Turbulent Combustion Regimes Using Computational Singular Perturbation.

Turbulent Burning Characteristics of Hydrogen/Air Premixed Flames in Different Combustion Regimes (2019)
Presentation / Conference Contribution
Song, W., Tingas, S., Hernández Pérez, F. E., & Im, H. G. (2019, April). Turbulent Burning Characteristics of Hydrogen/Air Premixed Flames in Different Combustion Regimes. Paper presented at 9th European Combustion Meeting, Lisbon, Portugal

Song, W., Tingas, S., Hernández Pérez, F. E., & Im, H. G. (2019, April). Turbulent Burning Characteristics of Hydrogen/Air Premixed Flames in Different Combustion Regimes. Paper presented at 9th European Combustion Meeting, Lisbon, Portugal.

Tangential stretching rate: Theory and application in the diagnostics of turbulent flames (2019)
Presentation / Conference Contribution
Song, W., Tingas, S., Im, H., Ciottoli, P., Galassi, R., & Valorani, M. (2019, March). Tangential stretching rate: Theory and application in the diagnostics of turbulent flames. Paper presented at 11th US National Combustion Meeting, Pasadena, CA, USA

CSP and Local Sensitivity Analysis (2019)
Presentation / Conference Contribution
Tingas, S., & Goussis, D. (2019, March). CSP and Local Sensitivity Analysis. Paper presented at 11th US National Combustion Meeting, Pasadena, CA, USA

Tingas, S., & Goussis, D. (2019, March). CSP and Local Sensitivity Analysis. Paper presented at 11th US National Combustion Meeting, Pasadena, CA, USA.

Development of a reduced four-component (toluene/n-heptane/iso-octane/ethanol) gasoline surrogate model (2019)
Journal Article
Li, Y., Alfazazi, A., Mohan, B., Alexandros Tingas, E., Badra, J., Im, H. G., & Mani Sarathy, S. (2019). Development of a reduced four-component (toluene/n-heptane/iso-octane/ethanol) gasoline surrogate model. Fuel, 247, 164-178. https://doi.org/10.1016/j

The prospect of blending gasoline fuel with ethanol is being investigated as a potential way to improve the knock residence of the base gasoline. However, one of the drawbacks is a lack of proper understanding of the reason for the non-linear respons... Read More about Development of a reduced four-component (toluene/n-heptane/iso-octane/ethanol) gasoline surrogate model.

DNS of turbulent premixed flames propagating in a channel (2019)
Presentation / Conference Contribution
Song, W., Tingas, S., Hernandez Perez, F., & Im, H. (2019, March). DNS of turbulent premixed flames propagating in a channel. Poster presented at KAUST Research Conference on Future of Fuels and Energy, KAUST, Thuwal, Saudi Arabia

Song, W., Tingas, S., Hernandez Perez, F., & Im, H. (2019, March). DNS of turbulent premixed flames propagating in a channel. Poster presented at KAUST Research Conference on Future of Fuels and Energy, KAUST, Thuwal, Saudi Arabia.

Focusing on lactate shuttle: a model of brain metabolism analyzed with CSP (2019)
Presentation / Conference Contribution
Patsatzis, D., Tingas, S., Goussis, D. A., & Mani Sarathy, S. (2019, February). Focusing on lactate shuttle: a model of brain metabolism analyzed with CSP. Paper presented at 10th International Conference Dynamical Systems Applied to Biology and Natural S

The mammalian brain utilizes glucose as its main source of energy. However,it has been recently discovered that lactate can also be considered important as a fuel and a signaling molecule in neuronal activity, especially during neuronalactivation. Th... Read More about Focusing on lactate shuttle: a model of brain metabolism analyzed with CSP.

Dynamics Analysis of a Turbulent Methane Flame in MILD Combustion Conditions (2019)
Presentation / Conference Contribution
Manias, D. M., Tingas, E., Im, H. G., & Minamoto, Y. (2019). Dynamics Analysis of a Turbulent Methane Flame in MILD Combustion Conditions. In AIAA Scitech 2019 Forum. https://doi.org/10.2514/6.2019-1731

The dominant physical processes that characterize the combustion of a lean methane/air mixture, diluted with exhaust gas recirculation (EGR), under turbulent MILD premixed conditions are identified using the combined approaches of Computational Singu... Read More about Dynamics Analysis of a Turbulent Methane Flame in MILD Combustion Conditions.