A new compact active turbulence generator for premixed combustion: Non-reacting flow characteristics

S Mohammadnejad, L Saca, S Kheirkhah - Physics of Fluids, 2022 - pubs.aip.org
A new compact active turbulence generator is developed, tested, and characterized, which
extends the capabilities of such generators used in turbulent premixed combustion research …

Internal structure of hydrogen-enriched methane–air turbulent premixed flames: Flamelet and non-flamelet behavior

S Mohammadnejad, P Vena, S Yun, S Kheirkhah - Combustion and Flame, 2019 - Elsevier
Internal structure of pure and hydrogen-enriched methane–air flames were investigated
experimentally, using simultaneous Planar Laser-Induced Fluorescence of formaldehyde …

Physical coupling between inertial clustering and relative velocity in a polydisperse droplet field with background turbulence

MS Kumar, SR Chakravarthy, M Mathur - Europhysics Letters, 2023 - iopscience.iop.org
Natural processes, ranging from blood transport to planetary formation, are strongly
influenced by particle collisions induced by background turbulence. While inertial clustering …

On turbulent burning velocities of V-shaped turbulent premixed flames with circular fractal turbulence generators

J Ahn, J Kim, K Lee - Thermal Science and Engineering Progress, 2024 - Elsevier
The characteristics of turbulent burning velocities of V-shaped turbulent flames are
experimentally investigated by varying the shape parameters of cross-and square-type …

Experimental study of the effects of droplet number density on turbulence-driven polydisperse droplet size growth

MS Kumar, M Mathur, SR Chakravarthy - Journal of Fluid Mechanics, 2021 - cambridge.org
Interaction of polydisperse droplets in a turbulent air flow features prominently in a wide
range of phenomena, such as warm rain initiation as an example. In the current study, we …

Optimum air turbulence intensity for polydisperse droplet size growth

MS Kumar, SR Chakravarthy, M Mathur - Physical Review Fluids, 2019 - APS
The growth of the average size of liquid droplets suspended in a turbulent air flow is of
paramount importance in several natural and engineering systems. Here we present an …

The use of active grids in experimental facilities

RJ Hearst - Progress in Turbulence VIII: Proceedings of the iTi …, 2019 - Springer
Active grids allow for the turbulence in experimental facilities to be tailored through a broad
range of turbulence intensities and Reynolds numbers. This work provides an overview of …

On the Performance and Near Wake Characteristics of a Tidal Stream Turbine under Tunable Turbulent Inflows

A Vinod - 2020 - search.proquest.com
Tidal turbines are designed to be deployed in flows that are turbulent and spatially non-
uniform in nature due to wave-current interactions, bottom boundary layer effects, and …