Upstream flow geometries can be uniquely learnt from single-point turbulence signatures

Autor: Karunanethy, Mukesh, Rengaswamy, Raghunathan, Panchagnula, Mahesh V

We test the hypothesis that the microscopic temporal structure of near-field turbulence downstream of a sudden contraction contains geometry-identifiable information pertaining to the shape of the upstream obstruction. We measure a set of spatially s

Externí odkaz: http://arxiv.org/abs/2412.10630

User authentication system based on human exhaled breath physics

Autor: Karunanethy, Mukesh, Tripathi, Rahul, Panchagnula, Mahesh V, Rengaswamy, Raghunathan

Publikováno v: Mukesh K, Rahul Tripathi, Mahesh V Panchagnula, Raghunathan Rengaswamy, User authentication system based on human exhaled breath physics. PLoS ONE, 19(4): e0301971, 2024

This work, in a pioneering approach, attempts to build a biometric system that works purely based on the fluid mechanics governing exhaled breath. We test the hypothesis that the structure of turbulence in exhaled human breath can be exploited to bui

Externí odkaz: http://arxiv.org/abs/2401.02447

Pulmonary drug delivery and retention: a computational study to identify plausible parameters based on a coupled airway-mucus flow model

Autor: Chakravarty, Aranyak, Panchagnula, Mahesh V., Mohan, Alladi, Patankar, Neelesh A.

Pulmonary drug delivery systems rely on inhalation of drug-laden aerosols produced from aerosol generators such as inhalers, nebulizers etc. On deposition, the drug molecules diffuse in the mucus layer and are also subjected to mucociliary advection

Externí odkaz: http://arxiv.org/abs/2012.00676

Sparse game changers restore collective motion in panicked human crowds

Autor: Kulkarni, Ajinkya, Thampi, Sumesh P., Panchagnula, Mahesh V.

Publikováno v: Phys. Rev. Lett. 122, 048002 (2019)

Using a dynamic variant of the Vicsek model, we show that emergence of a crush from an orderly moving human crowd is a non-equilibrium first order phase transition. We also show that this transition can be reversed by modifying the dynamics of a few

Externí odkaz: http://arxiv.org/abs/1711.06468

Experimental and computational investigations of gas entrainment in SFR due to rotation of partially submerged pump shaft

Autor: Khan, Faizan U., Panchagnula, Mahesh V., Velusamy, K.

Publikováno v: In Annals of Nuclear Energy August 2020 143