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Particles and Waves Lab

Fluid Dynamics & Transport Processes
Peer-reviewed research

Publications

Journal Publications

Under Review
    article
  1. Orientation dynamics of a settling spheroid in simple shear flow: bifurcations and stochastic alignment
    Himanshu Mishra and Anubhab Roy
    [Link]

  2. article
  3. Shear-induced self-diffusivity in dilute suspensions with repulsive interactions
    Anu V S Nath, Pijush Patra and Anubhab Roy
    [Link]

  4. article
  5. Transport and orientation of anisotropic particles settling in surface gravity waves
    Himanshu Mishra and Anubhab Roy
    [Link]

  6. article
  7. The electrostatic–hydrodynamic interaction of two spheres in a linear compressional flow
    Srikumar Warrier, Anubhab Roy and Pijush Patra
    [Link]

2026
    article
  1. Evidence of an inertialess Kapitza instability due to viscosity stratification
    Shravya Gundavarapu, Darish Jeswin Dhas and Anubhab Roy Intl J. Multiphase Flow (accepted)
    [Link]

  2. article
  3. Radiation forces and torques on Janus cylinders
    Mohd. Meraj Khan, Sumesh Thampi and Anubhab Roy Phys. Rev. E (accepted)
    [Link]

  4. article
  5. On the generation of free-surface waves by instabilities in quadratic shear flows
    Harishankar Muppirala, Ramana Patibandla and Anubhab Roy J. Fluid Mech., 1037, A68 (2026)
    [Link]

  6. article
  7. Lattice Boltzmann method for electromagnetic wave scattering
    Mohd. Meraj Khan, Sumesh Thampi and Anubhab Roy J. Quant. Spec. Rad. Trans., 359, 109944 (2026)
    [Link]

  8. Linking the rheology of thermal amorphous materials to molecular-scale physics
    Mehryar Jannesari Ghomsheh, Anubhab Roy, Donald L. Koch and Sarah Hormozi J. Fluid Mech., 1027, A32
    [Link] [PDF]

2025
  1. Exit time of colloidal particles from falling drops
    Nishanth Murugan and Anubhab Roy Phy. Rev. E, 112, 065104
    [Link] [PDF]

  2. Gravity-induced collisions of uncharged cloud droplets in an electric field
    Pijush Patra and Anubhab Roy J. Atmos. Sci., 82, 2357
    [Link] [PDF]

  3. Electrostatic interactions between anisotropic particles
    Harshit Joshi and Anubhab Roy Phy. Rev. E, 111, 035410
    [Link] [PDF]

  4. Electric field effects on the collision efficiency of uncharged water droplets in a linear flow
    Pijush Patra, Anubhab Roy and J. S. Wettlaufer Phy. Rev. Fluids, 10, 103601
    [Link] [PDF]

  5. Trapping and transport of inertial particles in a Taylor-Green vortex: Effects of added mass and history force
    Prabhash Kumar, Anu V. S. Nath, Mahesh Panchagnula and Anubhab Roy Phy. Rev. Fluids, 10, 104304
    [Link] [PDF]

  6. Stirring with the phase angle φ: Unlocking chaos in slow subperiodic viscous flows
    Prabhash Kumar, Prahallada Jutur, Anubhab Roy and Mahesh Panchagnula Phy. Rev. Fluids, 10, 103601
    [Link] [PDF]

  7. Instability of a dusty shear flow
    Anu V. S. Nath, Anubhab Roy and M. Houssem Kasbaoui J. Fluid Mech., 1002, A17
    [Link] [PDF]

  8. The flow field due to a sphere moving in a viscous, density stratified fluid
    R Patibandla, Anubhab Roy and Ganesh Subramanian J. Fluid Mech., 1002, A44
    [Link] [PDF]

  9. Prediction of effective thermal conductivity of a suspension of core-shell particles using asymptotic homogenization
    Karthiban A, Easwar M K, A Arockiarajan and Anubhab Roy Physics of Fluids, 37, 1

    [Link]
    [PDF]

  10. article
  11. Particle transport in oscillatory flows with streamwise nonuniformity: effects of particle inertia and thermal fluctuations
    Prabhash Kumar, Mahesh Panchagnula and Anubhab Roy Eur. Phys. J. Spec. Top. (2025)

2024
  1. Electromagnetic scattering by curved surfaces and calculation of radiation force: Lattice Boltzmann simulations
    Mohd. Meraj Khan, Sumesh P Thampi and Anubhab Roy J. App. Phys. 136, 19
    [Link]
    [PDF]

  2. Dust-free region over horizontal hot surfaces
    K. K. Prasoon, Anubhab Roy and Baburaj A. Puthenveettil J. Fluid Mech. 1001, A45

    [Link] [PDF]

  3. Clustering and chaotic motion of heavy inertial particles in an isolated non-axisymmetric vortex
    Anu V. S. Nath and Anubhab Roy J. Fluid Mech 998, A62
    [Link] [PDF]

  4. The merger of co-rotating vortices in dusty flows
    S Shuai, A Roy, MH Kasbaoui J. Fluid Mech 981, A27
    [Link] [PDF]

  5. Irregular dependence on Stokes number and non-ergodic transport of heavy inertial particles in steady laminar flows
    AVS Nath, A Roy, S Ravichandran, R Govindarajan Phys. Rev. Fluids 9, 014302
    [Link] [PDF]

2023
  1. Penetrative and Marangoni convection in a fluid film over a phase boundary
    Darish Jeswin Dhas, Srikanth Toppaladoddi and Anubhab Roy J. Fluid Mech 977, A34
    [Link] [PDF]

  2. Surface and internal gravity waves on a viscous liquid layer: initial-value problems
    R Patibandla, S Basak, R Dasgupta, A Roy International Journal of Multiphase Flow, 104592
    [Link] [PDF]

  3. Collision efficiency of like-charged spheres settling in a quiescent environment
    P Patra, DL Koch, A Roy Journal of Fluid Mechanics 968, A22
    [Link] [PDF]

  4. Orientation of finite Reynolds number anisotropic particles settling in turbulence
    A Roy, S Kramel, U Menon, GA Voth, DL Koch Journal of Non-Newtonian Fluid Mechanics 318, 105048
    [Link] [PDF]

  5. Wind-generated waves on a water layer of finite depth
    Y Kadam, R Patibandla, A Roy Journal of Fluid Mechanics 967, A12
    [Link] [PDF]

  6. Pair trajectories of uncharged conducting spheres in an electric field
    N Thiruvenkadam, P Patra, V Kadaba Puttanna, A Roy Physics of Fluids, 2023
    [Link] [PDF]

  7. Instability of a thin film of chemotactic active suspension
    N Murugan, A Roy Journal of Fluid Mechanics 955, A11, 2023
    [Link] [PDF]

2022
  1. Collision efficiency of non-Brownian spheres in a simple shear flow–the role of non-continuum hydrodynamic interactions
    P Patra, DL Koch, A Roy Journal of Fluid Mechanics 950, A18, 2022
    [Link] [PDF] [IITM Tech Talk]

  2. Instability of a dusty vortex
    S Shuai, DJ Dhas, A Roy, MH Kasbaoui Journal of Fluid Mechanics 948, A56, 2022
    [Link] [PDF]

  3. Brownian coagulation of like-charged aerosol particles
    P Patra, A Roy Physical Review Fluids 7 (6), 064308, 2022
    [Link] [PDF]

  4. Wavy regime of a colloidal falling film
    DJ Dhas, A Roy Physical Review Fluids 7 (6), 064307, 2022
    [Link] [PDF]

  5. A multiscale approach to predict the effective conductivity of a suspension using the asymptotic homogenization method
    E MK, A Arockiarajan, A Roy Physics of Fluids, 2022
    [Link] [PDF]

  6. Stability of gravity-driven particle-laden flows - Roles of shear-induced migration and normal stresses
    Darish Jeswin Dhas S and Anubhab Roy J. Fluid Mech., 938, A29, 2022
    [Link] [PDF]

  7. Transport of condensing droplets in Taylor-Green vortex flow in the presence of thermal noise
    Anu V. S. Nath, Anubhab Roy, Rama Govindarajan, and S. Ravichandran Phy. Rev. E, 105, 3, 2022
    [Link] [PDF]

  8. Inertio-elastic instability of a vortex column
    Anubhab Roy, Piyush Garg, Jumpal Shashikiran Reddy and Ganesh Subramanian J. Fluid Mech., 937, A27, 2022
    [Link] [PDF]

  9. Instability of an auto-chemotactic active suspension
    Nishanth Murugan and Anubhab Roy J. Fluid Mech., 934, A21, 2022
    [Link] [PDF]

  10. Linear stability of a rotating liquid column revisited
    Pulkit Dubey, Anubhab Roy and Ganesh Subramanian J. Fluid Mech., 933, A55, 2022
    [Link] [PDF]

2021
  1. Triadic resonances in internal wave modes with background shear
    Ramana Patibandla, Manikandan Mathur and Anubhab Roy J. Fluid Mech., 929, A10, 2021
    [Link] [PDF]

  2. Stability of two-layer flows past slippery surfaces. Part II: Inclined channels
    Himanshu Mishra, S. Vengadesan and Anubhab Roy Phys. Fluids, 33, 8, 2021
    [Link] [PDF]

  3. Stability of two-layer flows past slippery surfaces. Part I: Horizontal channels
    Vignesh Ramakrishnan, Remil Mushthaq, S. Vengadesan and Anubhab Roy Phys. Fluids, 33, 8, 2021
    [Link] [PDF]

  4. Inertial effects on the flow near a moving contact line
    Akhil Varma, Anubhab Roy and Baburaj A. Puthenveettil J. Fluid Mech., 924, A36, 2021
    [Link] [PDF]

  5. Collision rate of bidisperse, hydrodynamically interacting spheres settling in a turbulent flow
    Johnson Dhanasekaran, Anubhab Roy and Donald L. Koch J. Fluid Mech., 912, A5, 2021
    [Link] [PDF]

  6. Collision rate of bidisperse spheres settling in a compressional non-continuum gas flow
    Johnson Dhanasekaran, Anubhab Roy and Donald L. Koch J. Fluid Mech., 910, A10, 2021
    [Link] [PDF]

2020
  1. A Lattice Boltzmann Method for Electromagnetic Wave Propagation in Medium
    Jamal Hussain, Ratul Dasgupta, Harish N Dixit, Sumesh P. Thampi and Anubhab Roy. IEEE ICCEM, 299, 2020
    [Link] [PDF]

  2. Azimuthal capillary waves on a hollow filament - the discrete and the continuous spectrum
    Palas . K. Farsoiya, Anubhab Roy and Ratul Dasgupta J. Fluid Mech., 883, A21, 2020
    [Link] [PDF]

2019
  1. Inertial torques and a symmetry breaking orientational transition in the sedimentation of slender fibers
    Anubhab Roy, Rami J. Hamati, Lydia Tierney, Donald L. Koch and Greg A. Voth J. Fluid Mech., 875, 576–596, 2019
    [Link] [PDF]

2006-2018
  1. Optimal energy growth in a stably stratified shear flow
    Sharath Jose, Anubhab Roy, Rahul Bale, Krithika Iyer and Rama Govindarajan Fluid Dynamics Research, 50, 1, 011421 (2018)
    [Link] [PDF]

  2. Analytical solutions for algebraic growth of disturbances in a stably stratified shear flow
    Sharath Jose, Anubhab Roy, Rahul Bale and Rama Govindarajan Proc. Roy. Soc. A, 471, 20150267 (2015)
    [Link] [PDF]

  3. Emergence of upstream swimming through a hydrodynamic transition
    Chih-kuan Tung, Florencia Ardon, Anubhab Roy, Donald L. Koch, Susan S. Suarez & Mingming Wu Phys. Rev. Lett., 114, 108102 (2015)
    [Link] [PDF]

  4. An inviscid modal interpretation of the 'lift-up' effect
    Anubhab Roy & Ganesh Subramanian J. Fluid Mech., 757, 82-113 (2014)
    [Link] [PDF]

  5. Linearized oscillations of a vortex column: the singular eigenfunctions
    Anubhab Roy & Ganesh Subramanian J. Fluid Mech., 741, 404-460 (2014)
    [Link] [PDF]

  6. Dynamics of vorticity defects in stratifed shear
    N. J. Balmforth, A. Roy & C. P. Caulfield J. Fluid Mech., 694, 292-331 (2012). Cover page article
    [Link] [PDF]

  7. An adaptation of Adomian decomposition for numeric-analytic integration of strongly non- linear and chaotic oscillators
    Susanta Ghosh, Anubhab Roy & Debasish Roy Computer Methods in Applied Mechanics and Engineering, 196 (4-6), 1133-1153 (2007)
    [Link] [PDF]

  8. Seismic evaluation of multi-storey RC frame using modal pushover analysis
    Anubhab Roy & Srinivas Chandrasekaran Nonlinear Dynamics, 43(4), 329-342 (2006)
    [Link] [PDF]

Video Publications

  1. Jets formed from fluid flow through a non-circular orifice
    Palas Kumar Farsoiya, Sagar Patankar, Anubhab Roy and Ratul Dasgupta Gallery of Fluid Motion, American Physical Society - Division of Fluid Dynamics (2019)
    [Link]