Dynamos

I find low- $\Rm$ mean-field modelling somewhat boring, and prefer to study systems where the small-scale dynamo is excited.

I have worked on the following topics:

• small-scale dynamo (Gopalakrishnan and Singh 2024)
• large-scale dynamo (Gopalakrishnan and Singh 2023)
• helicity fluxes (Gopalakrishnan and Subramanian 2023)

Bibliography

• Gopalakrishnan and Singh (2023). Mean-field dynamo due to spatio-temporal fluctuations of the turbulent kinetic energy. Journal of Fluid Mechanics, 973, A29. doi: 10.1017/jfm.2023.765.
• Gopalakrishnan and Singh (2024). Small-scale dynamo with nonzero correlation time. The Astrophysical Journal, 970(1), 64. doi: 10.3847/1538-4357/ad4ee4.
• Gopalakrishnan and Subramanian (2023). Magnetic helicity fluxes from triple correlators. The Astrophysical Journal, 943(1), 66. doi: 10.3847/1538-4357/aca808.