4 papers
The spectra of solar magnetic energy and helicity
G. Kishore, Nishant K. Singh
Previous studies have used magnetic energy and helicity spectra, the latter computed using the two-scale method, to search for signatures of mean-field dynamos. In this study, we c…
Rotational effects on the small-scale dynamo
G. Kishore, Nishant K. Singh
Using direct numerical simulations of forced rotating turbulence, we study the effect of rotation on the growth rate and the saturation level of the small-scale dynamo. For slow ro…
Turbulent transport in a non-Markovian velocity field
G. Kishore, Nishant K. Singh
The commonly used quasilinear approximation allows one to calculate the turbulent transport coefficients for the mean of a passive scalar or a magnetic field in a given velocity fi…
Strengthening of the f mode due to subsurface magnetic fields in simulations of convection
G. Kishore, Nishant K Singh, Petri Käpylä +1
Previous studies have found that localized strengthening of the f mode recedes the emergence of active regions on the Sun by one day to three days. To help interpret these observat…