1. Granular flow through apertures

Currently, we intend to explore the flow of granular media through apertures in a variety of scenarios, including placing obstacles above the outlet. We believe the insight gained in such granular systems would help understand other strikingly similar systems, such as the egress of pedestrians through a narrow exit and traffic flow. The snapshot shown illustrates the outflow of granular media under gravity through a silo having an eccentric outlet. The research outcomes have been published and presented in international journals and conferences.

1. Signature of transition: Ashish Bhateja. Physics of Fluids, 35, 091701, 2023. [Paper link] 

2. Role of outlet eccentricity: Ashish Bhateja and Sahaj Jain. Physics of Fluids, 34, 043306, 2022. [Related to the BTech project of Sahaj Jain; Paper link]

3. Notion of equi-inertial curves: Ashish Bhateja. Physical Review E, 102, 042904, 2020. [Paper link]

4. Multi-outlet systems: Yashvardhan Singh Bhati and Ashish Bhateja. FMFP 2022: Fluid Mechanics and Fluid Power, Volume 5, pp 419–424, 2024. Lecture Notes in Mechanical Engineering. Springer, Singapore.

3. Gas-solid flows

Coupling of the discrete element method (DEM) and particle-based DSMC techniques. Utilizing the two-way coupled framework, plume-surface interaction is examined during lunar landing. [With Prof. Rakesh Kumar, AE, IITK] 

1. Aasheesh Bajpai, Ashish Bhateja, and Rakesh Kumar. Physical Review Fluids 9, 024306, 2024. [Editors' Suggestion;  Paper link]