P. Patra, L. T. Giorgini and J. S. Wettlaufer. Stochastic coupling of climate variables and ice volume over the Late Pleistocene glacial cycles. (Under review in Chaos: An Interdisciplinary Journal of Nonlinear Science) https://arxiv.org/abs/2603.26937

A. V. S. Nath, P. Patra and A. Roy. Shear-induced self-diffusivity in dilute suspensions with repulsive interactions. (Under review in J. Fluid Mech.) https://arxiv.org/abs/2603.27396

S. Warrier, P. Patra and A. Roy. Electrostatic enhancement of particle collision rates in atmospheric flows. (Under review in J. Fluid Mech.) https://arxiv.org/abs/2512.24512

P. Patra, A. Roy and J. S. Wettlaufer. (2025). Electric field effects on the collision efficiency of uncharged water droplets in a linear flow. Phys. Rev. Fluids, 10, 103601.

P. Patra and A. Roy. (2025). Gravity-induced collisions of uncharged cloud droplets in an electric field. J. Atmos. Sci., 82, 2357–2373.

P. Patra, D. L. Koch and A. Roy. (2023). Collision efficiency of like-charged spheres settling in a quiescent environment. J. Fluid Mech., 968, A22.

N. Thiruvenkadam, P. Patra, V. K. Puttanna and A. Roy. (2023). Pair trajectories of uncharged conducting spheres in an electric field. Phys. Fluids, 35, 033311. 

P. Patra, D. L. Koch and A. Roy. (2022). Collision efficiency of non-Brownian spheres in a simple shear flow - the role of non-continuum hydrodynamic interactions. J. Fluid Mech., 950, A18.

P. Patra and A. Roy. (2022). Brownian coagulation of like-charged aerosol particles. Phys. Rev. Fluids, 7, 064308.

P. Patra, L. T. Giorgini and J. S. Wettlaufer. Stochastic modeling of coupled climate variables and ice volume over the Pleistocene glacial cycles, AGU25, 15 to 19 December 2025, New Orleans, LA (USA).

P. Patra and J. S. Wettlaufer. Electrostatic effects on droplet growth: evolution of droplet size distributions in electrified clouds, 78th Annual Meeting of the APS Division of Fluid Dynamics, 23 to 25 November 2024, Houston, Texas (USA).

P. Patra, A. Roy and J. S. Wettlaufer. Collision efficiency of uncharged conducting spheres in a uniaxial compressional flow and an external electric field, 77th Annual Meeting of the APS Division of Fluid Dynamics, 24 to 26 November 2024, Salt Lake City, Utah (USA).

P. Patra and A. Roy, Droplet growth in warm cumulus clouds, EUROMECH Colloquium 628 Complex Particles in Turbulent Flow, 03 to 05 May 2023, Nice, France.

P. Patra and A. Roy, Coagulation of like-charged Brownian Particles, 75th Annual Meeting of the APS Division of Fluid Dynamics, 20 to 22 November 2022, Indianapolis, Indiana (USA).

P. Patra and A. Roy, Collision efficiency of Brownian spheres settling in a non-continuum gas, 14th European Fluid Mechanics Conference-EFMC14, 13 to 16 September 2022, Athens, Greece. 

P. Patra, A. Roy and D. L. Koch, Cloud droplet collision efficiencies - rapid settling regime, International Commission on Clouds and Precipitation (ICCP-2021), 2 to 6 August 2021, Virtual, India.

P. Patra, A. Kundu and A. Roy, Shear-induced dispersion in a dilute suspension of charged spheres, 73rd Annual Meeting of the APS Division of Fluid Dynamics, 23 to 26 November 2020, Virtual, CT (Chicago Time).

P. Patra, A. Roy and D. L. Koch, Collision efficiency of rapidly settling particles in a turbulent flow, 72nd Annual Meeting of the APS Division of Fluid Dynamics, 23 to 26 November 2019 , Seattle, Washington (USA).

P. Patra and A. Roy, Collision of cloud droplets settling in a turbulent atmosphere, International Conference on Waves, Instabilities and Turbulence in Geophysical and Astrophysical Flows (WITGAF-2019), 08 to 19 July 2019, Cargese (France).

P. Patra, A. Kundu and A. Roy, Trajectory analysis of non-Brownian suspensions in a non-continuum gas, 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP-2018), 10 to 12 December 2018, IIT Bombay, India.

H. Mishra, P. Patra and A. Roy, Orientation dynamics of a conducting anisotropic particle in a turbulent flow under the influence of an external magnetic field, IUTAM Symposium on Rapid granular flows and turbulent particle suspensions, 21 to 25 January 2024, IIT Bombay, India.

Anu V. S. Nath, P. Patra and A. Roy, Collisional dynamics of particles sedimenting in a horizontal shear flow, IUTAM Symposium on Rapid granular flows and turbulent particle suspensions, 21 to 25 January 2024, IIT Bombay, India.

P. Patra and A. Roy, Collision efficiency of poly-dispersed charged spheres in a quiescent environment, European Geosciences Union (EGU) General Assembly 2023, 24 to 28 April 2023, Vienna, Austria.

P. Patra and A. Roy, The role of particle-flow interactions in cloud microphysics, PMRF Annual Symposium - 2023, 17 to 18 February 2023, IIT Madras, India.

Anu V. S. Nath, P. Patra and A. Roy, On the role of hydrodynamic interactions in the clustering of inertial particles, International Conference on Complex Fluids and Soft Matter, 05 to 07 December 2019, IISER Bhopal, India.

P. Patra and A. Roy, Pair probability of rapidly settling particle pairs in a turbulent flow, International Conference on  Complex Fluids and Soft Matter (COMFLU-2018), 06 to 09 December 2018, IIT Roorkee, India.