Research Description
In electrified storms and during volcanic eruptions, a portion of the turbulent kinetic energy transforms into electrostatic potential through charged particles, ultimately giving rise to discharging events, i.e., lightning, which are important for global climate, air quality, and aviation safety. Rui Ni’s research seeks to understand the physics of the underlying two-phase flow process that governs these spectacular natural phenomena. Dr. Ni’s experiments consist of two unique turbulent systems that feature homogeneous and isotropic turbulence and turbulent channel flow, both of which were designed to host charged particles and measure the developed electric fields.
Research Impact
Dr. Ni’s research on charge segregation in particle-laden turbulent flows could improve the understanding of geophysical events, such as lightning, volcanoes, and dust storms, and it could optimize industrial processes, such as fluidized beds, electrostatic precipitators, powder coating, and pharmaceutical granulation that involve particles that are inevitably charged due to triboelectrification.
Message sent
Thank you for sharing.
related links
Experimental Physics Investigators Initiative
Science
Johns Hopkins University, Department of Mechanical Engineering
Back