Tirtharaj Barman - Journal Publications

4) Barman, T., Das, A. and Sahoo, S., 2026. Role of partial stable stratification on the onset of rotating magnetoconvection with a uniform horizontal field. Physica Scripta. Physica Scripta. (DOI: https://doi.org/10.1088/1402-4896/ae5ce3)

Keywords: Horizontal rotating magnetoconvection, partial stable stratification, onset of convection, depth of penetration.

Rotating horizontal magnetoconvection with partial stable stratification. Onset of convection. Depth of penetration.

3) Barman, T. and Sahoo, S., 2025. Convection in rotating fluids permeated by an axial magnetic field with non-uniform stratification. Physica Scripta. (DOI: https://doi.org/10.1088/1402-4896/ae2972)

Keywords: Axial rotating magnetoconvection, partial stable stratification, onset of convection, depth of penetration

Rotating axial magnetoconvection with partial stable stratification. Onset of convection. Depth of penetration.

2) Barman, T., & Sahoo, S. (2025). Penetration depth of flow perturbations into a stably stratified layer driven by rotating laterally heterogeneous convection. Physics of Fluids, 37(8). (DOI: https://doi.org/10.1063/5.0275975)

Keywords: Depth of penetration, thermal stable stratification, lower mantle heterogeneity, penetrative convection.

Penetration of flow instabilities into a stable stratification is illustrated without (left) and with (right) a heterogeneous stably stratified layer, alongside a representative model of Earth’s outer core with stable stratification (middle). The predicted expressions for penetration depth are provided below for two scenarios: without heterogeneity (left) and with heterogeneity (right). Each scenario includes three cases—(i) without an imposed background magnetic field, (ii) with an axially imposed magnetic field, and (iii) with a horizontally imposed magnetic field.

1) Barman, T., & Sahoo, S. (2024). Role of partial stable stratification on fluid flow and heat transfer in rotating thermal convection. Physics of Fluids, 36(4). (DOI: https://doi.org/10.1063/5.0202158)

Keywords: Rotating thermal convection, thermal stable stratification, heat transfer, flow structure, Proper Orthogonal Decomposition (POD).

Thermal structure of penetrative convection with partial stable stratification under rapid rotation with moderate (bottom) and strong (top) buoyancy forcing. Red and blue colors indicate hot and cold plumes.