38 citations · 122 across the 15 of their papers we have counts for
15 papers
Field investigation of 3D snow settling dynamics under weak atmospheric turbulence
Jiaqi Li, Michele Guala, Jiarong Hong
Research on settling dynamics of snow particles, considering their complex morphologies and real atmospheric conditions, remains scarce despite extensive simulations and laboratory…
Stochastic modelling of the instantaneous velocity profile in rough-wall turbulent boundary layers
Roozbeh Ehsani, Michael Heisel, Jiaqi Li +3
The statistical properties of Uniform Momentum Zones (UMZs) are extracted from laboratory and field measurements in rough wall turbulent boundary layers to formulate a set of stoch…
Three-dimensional internal flow evolution of an evaporating droplet and its role in particle deposition pattern
Jiaqi Li, Jiarong Hong
The internal flow within an evaporating sessile droplet is one of the driving mechanisms that lead to the variety of particle deposition patterns seen in applications such as inkje…
Probing dynamics of elliptical vortex rings via direct vorticity measurements with digital inline holography
Jiaqi Li, Jiarong Hong
Investigating vorticity dynamics provides an effective way for understanding the fundamental mechanisms of fluid flows across diverse scales. However, experimental vorticity measur…
The characteristics of the meandering effect in a stratified wake
Xinyi Huang, Jiaqi Li
The gradual suppression of the vertical motions and the emergence of large-scale horizontal structures are characteristics of a stratified wake flow. We isolate the resulting wake…
Stochastic particle advection velocimetry (SPAV): theory, simulations, and proof-of-concept experiments
Ke Zhou, Jiaqi Li, Jiarong Hong +1
Particle tracking velocimetry (PTV) is widely used to measure time-resolved, three-dimensional velocity and pressure fields in fluid dynamics research. Inaccurate localization and…
Imaging-based 3D Particle Tracking System for Field Characterization of Particle Dynamics in Atmospheric Flows
Nathaniel Bristow, Jiaqi Li, Peter Hartford +2
A particle tracking velocimetry apparatus is presented that is capable of measuring three-dimensional particle trajectories across large volumes, of the order of several meters, du…
Snow particle analyzer for simultaneous measurements of snow density and morphology
Jiaqi Li, Michele Guala, Jiarong Hong
The detailed characterization of snow particles is critical for understanding the snow settling behavior and modeling the ground snow accumulation for various applications such as…
Direct measurement of vorticity using tracer particles with internal markers
Jiaqi Li, Lei Feng, Chinmayee Panigrahi +1
Current experiment techniques for vorticity measurement suffer from limited spatial and temporal resolution to resolve the small-scale eddy dynamics in turbulence. In this study, w…
Probing into gas leakage characteristics of ventilated supercavity through bubbly wake measurement
Siyao Shao, Jiaqi Li, Kyungduck Yoon +1
The stability of ventilated supercavitation is strongly influenced by gas leakage characteristics of the cavity. Here we conduct a systematic investigation of such characteristics…
Evidence of preferential sweeping during snow settling in atmospheric turbulence
Jiaqi Li, Aliza Abraham, Michele Guala +1
We present a field study of snow settling dynamics based on simultaneous measurements of the atmospheric flow field and snow particle trajectories. Specifically, a super-large-scal…
Insights into ventilation hysteresis shift due to flow unsteadiness in ventilated supercavitation
Kyungduck Yoon, Jiaqi Li, Siyao Shao +2
Understanding ventilation strategy of a supercavity is important for designing high-speed underwater vehicles wherein an artificial gas pocket is created behind a flow separation d…
Risk assessment of airborne transmission of COVID-19 by asymptomatic individuals under different practical settings
Siyao Shao, Dezhi Zhou, Ruichen He +6
The lack of quantitative risk assessment of airborne transmission of COVID-19 under practical settings leads to large uncertainties and inconsistencies in our preventive measures.…
Droplet evaporation residue indicating SARS-COV-2 survivability on surfaces
Zilong He, Siyao Shao, Jiaqi Li +3
SARS-CoV-2 survives and remains viable on surfaces for several days under different environments as reported in recent studies. However, it is unclear how the viruses survive for s…
Machine learning shadowgraph for particle size and shape characterization
Jiaqi Li, Siyao Shao, Jiarong Hong
Conventional image processing for particle shadow image is usually time-consuming and suffers degraded image segmentation when dealing with the images consisting of complex-shaped…