A5089798964- Fluid Dynamics and Heat Transfer
- Heat Transfer and Boiling Studies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Particle Dynamics in Fluid Flows
- Fluid Dynamics and Thin Films
- Surface Modification and Superhydrophobicity
- Electrohydrodynamics and Fluid Dynamics
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics and Mixing
- Heat Transfer and Optimization
- Biomimetic flight and propulsion mechanisms
- Nanomaterials and Printing Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Cyclone Separators and Fluid Dynamics
- Lattice Boltzmann Simulation Studies
- Aerosol Filtration and Electrostatic Precipitation
- Microfluidic and Bio-sensing Technologies
- Flow Measurement and Analysis
- Icing and De-icing Technologies
- Plant Surface Properties and Treatments
- Fluid Dynamics and Vibration Analysis
- Aerospace Engineering and Energy Systems
- Solar-Powered Water Purification Methods
- Combustion and flame dynamics
- Fish Ecology and Management Studies
Hong Kong University of Science and Technology
2016-2025
University of Hong Kong
2016-2025
University of Illinois Urbana-Champaign
2005-2007
University of Southern California
2001
Friedrich-Alexander-Universität Erlangen-Nürnberg
1990-1995
Academia Sinica
1992
We demonstrate that smooth and flat surfaces combining hydrophilic hydrophobic patterns improve pool boiling performance. Compared to a surface with 7 degree wetting angle, the measured critical heat flux transfer coefficients of enhanced are up respectively 65 100% higher. Different networks regions characterized. While all tested enhance coefficient, large enhancements typically found for featuring islands. Hydrophilic indeed shown prevent formation an insulating vapor layer.
We investigated the thermal performance of a novel wettability patterned evaporator for an ultrathin vapor chamber. Because integrates substrate underneath nanostructured mesh wick which can pin three-phase contact lines on hydrophilic/hydrophobic boundaries, it enlarges area thin-film evaporation. Microstructured pattern is fabricated surface and pressed onto by micropillar array to make intimate with each other. The electroplated inner side condenser also supports core as flow path....
Abstract Global warming and increased living standards have rapidly the demand for cooling systems. Meeting this in less economically developed areas is highly challenging due to a lack of electricity. In paper, we demonstrated high‐performance wide relative humidity (RH) solar‐driven evaporative strategy that uses only atmospheric water. Developed here first time, designed metal–organic framework (MOF‐801) based composite with water absorption across range RH. The as‐synthesized can adsorb...
The influence of particles on the external jet flame generated by 18650 lithium-ion batteries during thermal runaway is considered. A model that employed multi-component Navier-Stokes equations to consider gas-phase flow, and used Lagrangian method solid particles, was applied describe mixing characteristics flames battery combustion. related combustion process, with without compared analyzed, flow lines outside were obtained. Moreover, effect concentration components elevation height are...
Abstract Supercooling of water complicates phase change dynamics, the understanding which remains limited yet vital to energy-related and aerospace processes. Here, we investigate freezing jumping dynamics supercooled droplets on superhydrophobic surfaces, induced by a remarkable vaporization momentum, in low-pressure environment. The momentum arises from at droplet’s free surface, progressed intensified recalescence, subsequently inducing droplet compression finally self-jumping. By...
Unlike traditional blood pumps, interventional microaxial pumps are characterized by their small size, high rotational speed, and narrow gap between the impeller rim pump housing. These features result in an unstable flow field within pump, leading to shear stress regions that can cause hemolysis. To improve hydraulic efficiency of mitigate damage, this paper proposes with a superhydrophobic surface. The finite element method was used model axial arterial field, Navier slip boundary...
In the current study, we experimentally investigated flexibility effects on aerodynamic performance of flapping wings and correlation with aspect ratio at angle attack α = 45°. The Reynolds number based chord length wing tip velocity is maintained Re 5.3 × 103. Our result for compliant an 4 shows that can offer improved compared to a rigid wing. Flexible are found higher lift-to-drag ratios; in particular, there significant reduction drag little compromise lift. mechanism addressed by...