Wagner Research Group
at the McCormick School of Engineering
About Us
Our group is interested in the development and application of computer simulation methods “at the interfaces” – problems where multiple length scales, multiple domains, or multiple physical phenomena meet. For example, fluid flows around moving or deformable structures, material behavior spanning atomic to continuum scales, and phase changes in manufacturing simulations include all the challenges of each individual domain, but the couplings between multiple phenomena bring additional issues of stability, accuracy, and computational efficiency. Our goal is to shape the next generation of computational methods for simulations of these complex engineering problems on high-performance computers.
Our Research
![](https://sites.northwestern.edu/wagnerresearch/files/2023/07/meltPoolFlow-15czwmo-300x187-1.png)
Additive Manufacturing
Our group’s key accomplishment is the development of an integrated set of multiscale simulation methods to predict the relationship between process parameters, material microstructure, and the resulting part behavior.
![](https://sites.northwestern.edu/wagnerresearch/files/2023/07/sphereBedGeometry-s7sizf-300x206-1-e1690342972635.png)
Other Projects
We perform large eddy simulation (LES) of the dispersion of fluid and particles and study the effects of valve orifice shape and topology, starting with simple geometrical models.
Publications
Calibration of Cellular Automaton Model for Microstructure Prediction in Additive Manufacturing Using Dissimilarity Score
Journal of Manufacturing Science and Engineering
![NWE_ME_Vert_RGB_white](https://sites.northwestern.edu/wagnerresearch/files/2023/07/NWE_ME_Vert_RGB_white.png)
Contact
Greg Wagner
Associate Professor
Department of Mechanical Engineering
Northwestern University
gregory.wagner@northwestern.edu
847-491-4138