# Cristian E. Lacey

R&D S&E, Mechanical Engineering

## Biography

Cristian joined Sandia in 2023 as a senior member of technical staff in the Plasma & Reacting Flows department. His research focuses on developing models and algorithms to mitigate the computational cost of high-fidelity, multi-physics simulations (in particular, turbulent reacting flows), often adopting a physics-based and/or data-based reduced-order modeling approach.

## Education

Degree | Major | Institution | Year Completed |
---|---|---|---|

PhD | Mechanical and Aerospace Engineering | Princeton University | 2023 |

MA | Mechanical and Aerospace Engineering | Princeton University | 2023 |

BE | Mechanical Engineering | The Cooper Union | 2018 |

## Peer-Reviewed Publications

Lacey, C.E., Soriano, B.S., Rieth, M., Mueller, M.E., Chen, J.H., Data-based filtered dissipation rate modeling for multi-modal turbulent combustion: Evaluating a priori model generalizability, Proceedings of the Combustion Institute (2024) in preparation |

Jung, K.S., Lacey, C.E., Babaee, H., Chen, J.H., On-the-fly reduced order models of turbulent combustion with time-dependent bases and CUR decomposition, Journal of Computational Physics (2023) in preparation |

Lacey, C.E., D’Alessio, G., Sundaresan, S., Mueller, M.E., Physics-based dimensionality reduction and deep learning modeling for multi-physics simulations, Data-Centric Engineering (2023) in preparation |

Lacey, C.E., VanderKam, K., Sundaresan, S., Mueller, M.E., Data-based instantaneous conditional progress variable dissipation rate modeling for turbulent premixed combustion, Combustion and Flame (2023) in press |

Lacey, C.E., Novoselov, A.G., Mueller, M.E., In-Situ Adaptive Manifolds: Enabling computationally efficient simulations of complex turbulent reacting flows, Proceedings of the Combustion Institute 38 (2021) 2673-2680 |

Novoselov, A.G., Lacey, C.E., Perry, B.A., Mueller, M.E., Large Eddy Simulation of a turbulent lifted flame using multi-modal manifold-based models: Feasibility and interpretability, Proceedings of the Combustion Institute 38 (2021) 2581-2588 |

## Conference Papers & Presentations

Lacey, C.E., Soriano, B.S., Rieth, M., Mueller, M.E., Chen, J.H., Evaluating generalizability of a deep learning model for the instantaneous conditional dissipation rate profiles in multi-modal turbulent combustion, 76th Annual Meeting of the APS Division of Fluid Dynamics, Washington, DC, November 19-21, 2023 |

Bonilla, I.J., Lacey, C.E., Mueller, M.E., In-Situ Adaptive Manifolds for modeling a turbulent piloted jet flame with inhomogeneous inlets, 76th Annual Meeting of the APS Division of Fluid Dynamics, Washington, DC, November 19-21, 2023 |

Robang, A.S., Lacey, C.E., D’Alessio, G., Mueller, M.E., Deep learning modeling of the filtered generalized progress variable dissipation rate in turbulent premixed combustion, UCI Combustion Institute-Summer School, Irvine, CA, August 20-25, 2023 |

Lacey, C.E., Rieth, M., Chen, J.H., Mueller, M.E., Deep learning model for the instantaneous dissipation rate profiles in multi-modal turbulent combustion, 13th U.S. National Combustion Meeting, College Station, TX, March 19-22, 2023 |

Bonilla, I.J., Lacey, C.E., Mueller, M.E., Computational cost improvements for In-Situ Adaptive Manifolds for turbulent combustion modeling, 13th U.S. National Combustion Meeting, College Station, TX, March 19-22, 2023 |

Robang, A.S., Lacey, C.E., D’Alessio, G., Mueller, M.E., Deep learning modeling of the filtered generalized progress variable dissipation rate in turbulent premixed combustion, 13th U.S. National Combustion Meeting, College Station, TX, March 19-22, 2023 |

Lacey, C.E., D’Alessio, G., Sundaresan, S., Mueller, M.E., Physics-based dimensionality reduction and deep learning modeling for multi-physics simulations, 2nd Energy & Informatics International Forum, Honolulu, HI, December 13-17, 2022 |

Lacey, C.E., Rieth, M., Chen, J.H., Mueller, M.E., Data-based modeling of instantaneous dissipation rate profiles in multi-modal turbulent combustion, 75th Annual Meeting of the APS Division of Fluid Dynamics, Indianapolis, IN, November 20-22, 2022 |

Bonilla, I.J., Lacey, C.E., Mueller, M.E., Performance considerations for In-Situ Adaptive Manifolds for turbulent combustion modeling, 75th Annual Meeting of the APS Division of Fluid Dynamics, Indianapolis, IN, November 20-22, 2022 |

Lacey, C.E., Sundaresan, S., Mueller, M.E., Data-based instantaneous conditional progress variable dissipation rate modeling for turbulent premixed combustion, 39th International Symposium on Combustion, Vancouver, CA, July 24-29, 2022 |

Lacey, C.E., D’Alessio, G., Sundaresan, S., Mueller, M.E., Physics-based dimensionality reduction and deep learning model for the progress variable dissipation rate in turbulent premixed combustion, 18th International Conference on Numerical Combustion, San Diego, CA, May 8-11, 2022 |

Lacey, C.E., Sundaresan, S., Mueller, M.E., Deep learning model for the instantaneous conditional progress variable dissipation rate in turbulent premixed combustion, Spring Technical Meeting of the Eastern States Section of The Combustion Institute, Orlando, FL, March 6-9, 2022 |

Lacey, C.E., Sundaresan, S., Mueller, M.E., Data-based progress variable dissipation rate modeling for turbulent premixed combustion, 74th Annual Meeting of the APS Division of Fluid Dynamics, Phoenix, AZ, November 21-23, 2021 |

Lacey, C.E., Mueller, M.E., Large Eddy Simulations of turbulent flames with multiple and/or inhomogeneous inlets using In-Situ Adaptive Manifolds, 12th U.S. National Combustion Meeting, College Station, TX, May 24-26, 2021 |

Lacey, C.E., Novoselov, A.G., Mueller, M.E., In-Situ Adaptive Manifolds: Enabling simulations of complex turbulent reacting flows, 38th International Symposium on Combustion, Adelaide, AU, January 24-29, 2021 |

Novoselov, A.G., Lacey, C.E., Perry, B.A., Mueller, M.E., Large Eddy Simulation of a turbulent lifted flame using multi-modal manifold-based models: Feasibility and interpretability, 38th International Symposium on Combustion, Adelaide, AU, January 24-29, 2021 |

Lacey, C.E., Mueller, M.E., Leveraging In-Situ Adaptive Manifolds for computationally efficient simulations of turbulent combustion with multiple and/or inhomogeneous inlets, 73rd Annual Meeting of the APS Division of Fluid Dynamics, Chicago, IL, November 22-24, 2020 |

Lacey, C.E., Novoselov, A.G., Mueller, M.E., In-Situ Adaptive Manifolds: Enabling simulations of complex turbulent reacting flows, Spring Technical Meeting of the Eastern States Section of the Combustion Institute, Columbia, SC, March 8-11, 2020 |

Novoselov, A.G., Lacey, C.E., Mueller, M.E., Multi-modal manifold-based modeling of turbulent lifted flames, Spring Technical Meeting of the Eastern States Section of the Combustion Institute, Columbia, SC, March 8-11, 2020 |

Chin, A., Faddoul, R., Lacey, C.E., Mosin, A., Zhang, O., Baglione, M., Rundell, J., Optimizing condenser water supply temperature to minimize energy usage, 2020 ASHRAE Winter Conference, Orlando, FL, February 1-5, 2020 |

Lacey, C.E., Novoselov, A.G., Mueller, M.E., In-Situ Adaptive Manifolds: Enabling simulations of complex turbulent reacting flows, 72nd Annual Meeting of the APS Division of Fluid Dynamics, Seattle, WA, November 23-26, 2019 |

Novoselov, A.G., Lacey, C.E., Mueller, M.E., Large Eddy Simulations of turbulent flames using two-dimensional reduced-order manifold models, 72nd Annual Meeting of the APS Division of Fluid Dynamics, Seattle, WA, November 23-26, 2019 |

Wei, H., Bianco, V., Lacey, C.E., Trubatch, A.D., Yecko, P.A., Experimental quantification of volume loss rate and flow dynamics due to a magnetically localized fluid region in a laboratory model blood vessel flow, 12th International Conference on the Scientific and Clinical Applications of Magnetic Carriers, Copenhagen, DK, May 22-26, 2018 |

## Awards

Award | Year |
---|---|

Charlotte Elizabeth Procter FellowshipCompetitive fellowship recognizing outstanding graduate researchPrinceton University | 2022 |

SCGSR FellowshipSelective national fellowship that funds graduate thesis research at a DOE laboratoryDOE Office of Science | 2022 |

Luigi Crocco PrizeFor demonstrated excellence in teaching Princeton University | 2021 |

Sayre Award for Academic ExcellenceHighest-ranking graduate student after first year Princeton University | 2019 |

Daniel and Florence Guggenheim Foundation FellowshipCompetitive second-year fellowship Princeton University | 2019 |

Gordon Y. S. Wu Fellowship in EngineeringCompetitive first-year fellowship Princeton University | 2018 |

Henri D. Dickinson AwardHighest cumulative ranking upon graduation The Cooper Union | 2018 |

Alexander C. Grove Memorial PrizeFor scholarship, personal integrity, and professional promise The Cooper Union | 2018 |

The Mechanical Engineering Design PrizeFor excellence in mechanical design The Cooper Union | 2018 |

Tyler G. Hicks Mechanical Engineering PrizeFor academic achievement during the first two years The Cooper Union | 2016 |

Howard Silfin Mechanical Engineering Internship AwardFor ability to conduct quality research The Cooper Union | 2015 |

Half-Tuition ScholarshipMerit scholarship for all four years The Cooper Union | 2014 |