
Jeff Oishi
I lead the UNH Complicated Fluids group. We are interested in the basic physics of a wide array of fluid problems, including biophysical and geophysical flows. As the name implies, we solve complicated fluid dynamics: problems involving turbulence, phase changes, magnetic fields, traditional "complex" non-Newtonian fluids, or various combinations of them.
In order to tackle this menagerie of problems, we contribute to and use the Dedalus Project, a flexible framework for solving partial differential equations.
Prof. Oishi is one of the founders and core developers of Dedalus, and the other developers regularly visit and collaborate with our group.
Courses Taught
- ME 503: Thermodynamics
- ME 795/895: Special Topics
Education
- Ph.D., Astronomy, University of Virginia
Selected Publications
Oishi, J. S., & Brown, B. P. (2025). On the linear stability of partially and fully saturated atmospheres to moist convection. Journal of Fluid Mechanics, 1007. doi:10.1017/jfm.2025.125
Saxton, C. J., Marston, J. B., Oishi, J. S., & Tobias, S. M. (2024). Ordering of time scales predicts applicability of quasilinear theory in unstable flows. Journal of Fluid Mechanics, 998. doi:10.1017/jfm.2024.810
Vasil, G. M., Lecoanet, D., Augustson, K., Burns, K. J., Oishi, J. S., Brown, B. P., . . . Julien, K. (2024). The solar dynamo begins near the surface.. Nature, 629(8013), 769-772. doi:10.1038/s41586-024-07315-1
Cresswell, I. G., Anders, E. H., Brown, B. P., Oishi, J. S., & Vasil, G. M. (2023). Force balances in strong-field magnetoconvection simulations. Physical Review Fluids, 8(9). doi:10.1103/physrevfluids.8.093503
Oishi, J. S., & Baxter, M. (2023). Generalized quasi-linear approximation and non-normality in Taylor-Couette spiral turbulence.. Philos Trans A Math Phys Eng Sci, 381(2243), 20220122. doi:10.1098/rsta.2022.0122
Anders, E. H., Lecoanet, D., Cantiello, M., Burns, K. J., Hyatt, B. A., Kaufman, E., . . . Jermyn, A. S. (2023). The photometric variability of massive stars due to gravity waves excited by core convection.. Nat Astron, 7(10), 1228-1234. doi:10.1038/s41550-023-02040-7
Oishi, J. S., Vasil, G. M., Baxter, M., Swan, A., Burns, K. J., Lecoanet, D., & Brown, B. P. (2020). The magnetorotational instability prefers three dimensions.. Proc Math Phys Eng Sci, 476(2233), 20190622. doi:10.1098/rspa.2019.0622
Pearce, P., Song, B., Skinner, D. J., Mok, R., Hartmann, R., Singh, P. K., . . . Dunkel, J. (2019). Flow-Induced Symmetry Breaking in Growing Bacterial Biofilms.. Phys Rev Lett, 123(25), 258101. doi:10.1103/PhysRevLett.123.258101
Lecoanet, D., Le Bars, M., Burns, K. J., Vasil, G. M., Brown, B. P., Quataert, E., & Oishi, J. S. (2015). Numerical simulations of internal wave generation by convection in water.. Phys Rev E Stat Nonlin Soft Matter Phys, 91(6), 063016. doi:10.1103/PhysRevE.91.063016
Johansen, A., Oishi, J. S., Mac Low, M. -M., Klahr, H., Henning, T., & Youdin, A. (2007). Rapid planetesimal formation in turbulent circumstellar disks.. Nature, 448(7157), 1022-1025. doi:10.1038/nature06086