All Outputs (37)

Phase change surfaces with porous metallic structures for long-term anti/de-icing application (2024)
Journal Article

Hypothesis Ice mitigation has received increasing attention due to the severe safety and economic threats of icing hazards to modern industries. Slippery icephobic surface is a potential ice mitigation approach due to its ultra-low ice adhesion stre... Read More about Phase change surfaces with porous metallic structures for long-term anti/de-icing application.

Plasma flow control of the tip vortices over a very low aspect-ratio wing (2022)
Journal Article

Flow control of the tip vortices over a very low aspect-ratio wing was carried out using the dielectric-barrier-discharge plasma actuators. The results indicate a large change in the aerodynamic forces by plasma flow control, where the lift coefficie... Read More about Plasma flow control of the tip vortices over a very low aspect-ratio wing.

Development and interaction of vortices over a very low aspect-ratio wing under pitch-up motion (2022)
Journal Article

The vortical structures over a thin rectangular wing with a very low aspect ratio of 0.277 were investigated in a wind tunnel at an effective Reynolds number of 3×106. When applying pitch-up motion pivoted at mid-chord, the maximum lift angle was inc... Read More about Development and interaction of vortices over a very low aspect-ratio wing under pitch-up motion.

Opposition control of turbulent spots (2022)
Journal Article

Opposition control of artificially initiated turbulent spots in a laminar boundary layer was carried out in a low-turbulence wind tunnel with the aim to delay transition to turbulence by modifying the turbulent structure within the turbulent spots. T... Read More about Opposition control of turbulent spots.

Hydrophobically/oleophilically guarded powder metallurgical structures and liquid impregnation for ice mitigation (2022)
Journal Article

Icing hazards often pose operational and safety challenges. Various surface and coating approaches have been attempted for ice mitigation purposes, but the durability remains an outstanding issue. Inspired by traditional powder metallurgy and slipper... Read More about Hydrophobically/oleophilically guarded powder metallurgical structures and liquid impregnation for ice mitigation.

A phase-field method for three-phase flows with icing (2022)
Journal Article

A numerical scheme to simulate three-phase fluid flows with phase change is proposed. By combining the Cahn-Hilliard model for water-air interface, Allen-Cahn equation for ice and fluid and Navier-Stokes equation for momentum, we solve the evolution... Read More about A phase-field method for three-phase flows with icing.

Aerodynamic and aeroacoustic optimization of leading-edge undulation of a naca 65(12)-10 airfoil (2021)
Journal Article

Experimental studies of a NACA 65(12)-10 airfoil with a sinusoidal leading-edge undulation (LEU) were carried out to simultaneously optimize its aerodynamic and aeroacoustic performances by considering the attached as well as the separated flow at th... Read More about Aerodynamic and aeroacoustic optimization of leading-edge undulation of a naca 65(12)-10 airfoil.

Bypass transition in a boundary layer flow induced by plasma actuators (2021)
Journal Article

Bypass transition in flow over a flat plate triggered by a pair of dielectric-barrier-discharge plasma actuators mounted on the plate surface and aligned in the streamwise direction is investigated. A four-species plasma-fluid model is used to model... Read More about Bypass transition in a boundary layer flow induced by plasma actuators.

Toward Exceptional Icephobicity with Chionophile-Inspired Durable Biomimetic Coatings (2021)
Journal Article

Liquid-infused polymeric surfaces have demonstrated promising icephobicity. However, the capability to maintain the icephobic performance after material damage has been a challenge, both in terms of conserving a smoother surface and the replenishment... Read More about Toward Exceptional Icephobicity with Chionophile-Inspired Durable Biomimetic Coatings.

Molecular dynamics simulation of liquid argon flow in a nanoscale channel (2021)
Journal Article

The convective heat transfer in the Micro/ Nanoscale channel is of significant importance in engineering applications, and the classical macroscopic theory is invalid at depicting its physical processes and mechanisms. In this study, molecular dynami... Read More about Molecular dynamics simulation of liquid argon flow in a nanoscale channel.

Reduction of atomistic ice tensile stress by graphene–carbon nanotube coating (2021)
Journal Article

The accumulation of ice has adverse effects on human activities on the ground and in the air while the dynamic mechanism of the interaction force between the ice and wall surface has not been fully explored. Herein, molecular dynamics (MD) simulation... Read More about Reduction of atomistic ice tensile stress by graphene–carbon nanotube coating.

Effects of Rarefied Effect, Axial Conduction, and Viscous Dissipation on Convective Heat Transfer in 2D Parallel Plate Microchannel or Nanochannel with Walls at Uniform Temperature (2021)
Conference Proceeding

Experiments have shown that flow and heat transfer characters in microchannel or nanochannel are quite different from their well-known macroscale counterparts [1] because the effects of rarefied effect, axial conduction, and viscous dissipation on he... Read More about Effects of Rarefied Effect, Axial Conduction, and Viscous Dissipation on Convective Heat Transfer in 2D Parallel Plate Microchannel or Nanochannel with Walls at Uniform Temperature.

Early development of artificially initiated turbulent spots (2021)
Journal Article

An experimental investigation was carried out in a low-turbulence wind tunnel to study the early development of artificially initiated turbulent spots in a laminar boundary layer over a flat plate. Their reproducibility allowed us to observe fine str... Read More about Early development of artificially initiated turbulent spots.

Transitional pulsatile flows with stenosis in a two-dimensional channel (2021)
Journal Article

Although blood flows are mostly laminar, transition to turbulence and flow separations are observed at curved vessels, bifurcations, or constrictions. It is known that wall-shear stress plays an important role in the development of atherosclerosis as... Read More about Transitional pulsatile flows with stenosis in a two-dimensional channel.

Molecular dynamics simulation of thermal de-icing on a flat surface (2021)
Journal Article

The accumulation of ice has adverse effects on human activities but the dynamic mechanism of icing and de-icing has not been well clarified. Herein, molecular dynamics (MD) simulations and the analysis methods of the hydrogen bond and the tetrahedral... Read More about Molecular dynamics simulation of thermal de-icing on a flat surface.

Durability enhancement of low ice adhesion polymeric coatings (2020)
Journal Article

Icephobic performance of low-ice adhesion polymeric coatings has been studied intensively for passive ice protection. However, limited efforts were conducted to identify strategies for enhancing the durability of the coatings to maintain low ice adhe... Read More about Durability enhancement of low ice adhesion polymeric coatings.

Interplay of the leading-edge vortex and the tip vortex of a low-aspect-ratio thin wing (2020)
Journal Article

An analytical solution of convective heat transfer in microchannel or nanochannel (2020)
Journal Article

The two-dimensional energy equation with a first-order velocity slip model and a temperature jump model is studied analytically and a solution consisting of an infinite series is obtained. Impacts of viscous dissipation, axial conduction and rarefied... Read More about An analytical solution of convective heat transfer in microchannel or nanochannel.

Resistance of velocity slip flow in pipe/channel with a sudden contraction (2020)
Journal Article

© 2020 Author(s). A novel approach based on the local entropy generation rate, also known as the second law analysis (SLA), is proposed to compute and visualize the flow resistance in mass transfer through a pipe/channel with a sudden contraction com... Read More about Resistance of velocity slip flow in pipe/channel with a sudden contraction.

Intrinsic dependence of ice adhesion strength on surface roughness (2020)
Journal Article

The roles of surface roughness on icephobicity including ice adhesion strength have been long debated in icephobicity studies. However, the direct/systematic influence of surface roughness on ice adhesion strength while keeping other surface characte... Read More about Intrinsic dependence of ice adhesion strength on surface roughness.