Faculty Directory
Gregory J. Wagner

Associate Professor of Mechanical Engineering

Contact

2145 Sheridan Road, L492
Tech
Evanston, IL 60208-3109

847-491-4138Email Gregory Wagner

Website

Wagner Research Group


Departments

Mechanical Engineering

Affiliations

Theoretical and Applied Mechanics Graduate Program


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Education

Ph.D. Mechanical Engineering, Northwestern University, Evanston, IL  

M.S. Mechanical Engineering, Northwestern University, Evanston, IL

B.S. Mechanical Engineering, Boston University, Boston, MA


Research Interests

I am interested in the development and application of computational simulations methods for multi-scale and multi-physics problems in engineering, especially in the areas of fluid dynamics, heat transfer, and material transport. Many of the most fascinating engineering systems are characterized by two or more physical phenomena coupled together in a single domain or across an interface. My research is focused on the development of models for these of these types of problems, and their solution using high performance computing tools. Examples include melting and solidification of metal in advanced manufacturing processes, fluid-structure interaction in the human heart and vascular system, heat transfer in multi-phase flows, and multi-scale transport in environmental systems.


Selected Publications

  • Y. P. Lian, J. Dallmann, B. Sonin, K. R. Roche, Wing K Liu, Aaron Packman, Gregory J Wagner, “Large eddy simulation of turbulent flow over and through a rough permeable bed”, Computers and Fluids, (2019)
  • Stephen Lin, Jinhui Yan, Dmitriy Kats, Gregory J Wagner, “A volume-conserving balanced-force level set method on unstructured meshes using a control volume finite element formulation”, Journal of Computational Physics, (2019)
  • Yanping Lian, Zhengtao Gan, Cheng Yu, Dmitriy Kats, Wing K Liu, Gregory J Wagner, “A cellular automaton finite volume method for microstructure evolution during additive manufacturing”, Materials and Design, (2019)
  • Wentao Yan, Stephen Lin, Orion L. Kafka, Cheng Yu, Zeliang Liu, Yanping Lian, Sarah Wolff, Jian Cao, Gregory J. Wagner, Wing Kam Liu, “Modeling process-structure-property relationships for additive manufacturing”, Frontiers of Mechanical Engineering, (2018)
  • Zhengtao Gan, Yanping Lian, Stephen Lin, Kevontrez Kyvon Jones, Wing Kam Liu, Gregory J Wagner, “Benchmark Study of Thermal Behavior, Surface Topography, and Dendritic Microstructure in Selective Laser Melting of Inconel 625”, Integrating Materials and Manufacturing Innovation, (2018)
  • Yanping Lian, Stephen Lin, Wentao Yan, Wing K Liu, Gregory J Wagner, “A parallelized three-dimensional cellular automaton model for grain growth during additive manufacturing”, Computational Mechanics, (2018)
  • Wentao Yan, Stephen Lin, Orion L. Kafka, Yanping Lian, Cheng Yu, Zeliang Liu, Jinhui Yan, Sarah Wolff, Hao Wu, Ebot Ndip-Agbor, Mojtaba Mozaffar, Kornel Ehmann, Jian Cao, Gregory J Wagner, Wing K Liu, “Data-driven multi-scale multi-physics models to derive process?structure?property relationships for additive manufacturing”, Computational Mechanics, (2018)
  • J. Yan, W. Yan, S. Lin, Gregory J Wagner, “A fully coupled finite element formulation for liquid?solid?gas thermo-fluid flow with melting and solidification”, Computer Methods in Applied Mechanics and Engineering, (2018)
  • J. Yan, S. Lin, Y. Bazilevs, Gregory J Wagner, “Isogeometric analysis of multi-phase flows with surface tension and with application to dynamics of rising bubbles”, Computers and Fluids, (2018)
  • Sarah J. Wolff, Stephen Lin, Eric J. Faierson, Wing Kam Liu, Gregory J. Wagner, Jian Cao, “A framework to link localized cooling and properties of directed energy deposition (DED)-processed Ti-6Al-4V”, Acta Materialia, (2017)
  • Jacob Smith, Wei Xiong, Wentao Yan, Stephen Lin, Puikei Cheng, Orion L. Kafka, Gregory J. Wagner, Jian Cao, Wing Kam Liu, “Linking process, structure, property, and performance for metal-based additive manufacturing”, Computational Mechanics, (2016)