All Outputs (9)

Aerodynamic and aeroacoustic optimization of leading-edge undulation of a naca 65(12)-10 airfoil (2021)
Journal Article
Kim, J. H., Choi, K. S., Lacagnina, G., Paruchuri, C., Joseph, P., Hasheminejad, S. M., Chong, T. P., Shahab, M. F., Omidyeganeh, M., & Pinelli, A. (2021). Aerodynamic and aeroacoustic optimization of leading-edge undulation of a naca 65(12)-10 airfoil. AIAA Journal, 60(4), 2342-2353. https://doi.org/10.2514/1.J060716

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
Xiao, D., Borradaile, H., Choi, K. S., Feng, L., Wang, J., & Mao, X. (2021). Bypass transition in a boundary layer flow induced by plasma actuators. Journal of Fluid Mechanics, 929, 134-150. https://doi.org/10.1017/jfm.2021.835

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
Memon, H., De Focatiis, D. S. A., Choi, K.-S., & Hou, X. (2021). Toward Exceptional Icephobicity with Chionophile-Inspired Durable Biomimetic Coatings. ACS Applied Polymer Materials, 3(8), 4184-4194. https://doi.org/10.1021/acsapm.1c00623

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
Sun, Q., Zhao, Y., Choi, K.-S., & Mao, X. (2021). Molecular dynamics simulation of liquid argon flow in a nanoscale channel. International Journal of Thermal Sciences, 170, Article 107166. https://doi.org/10.1016/j.ijthermalsci.2021.107166

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
Sun, Q., Zhao, Y., Choi, K.-S., Hou, X., & Mao, X. (2021). Reduction of atomistic ice tensile stress by graphene–carbon nanotube coating. Applied Surface Science, 565, Article 150562. https://doi.org/10.1016/j.apsusc.2021.150562

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)
Presentation / Conference Contribution
Sun, Q., Choi, K.-S., & Mao, X. (2019, September). 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. Presented at 16th UK Heat Transfer Conference (UKHTC2019), Nottingham, UK

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
Wang, Y. X., Choi, K.-S., Gaster, M., Atkin, C., Borodulin, V., & Kachanov, Y. (2021). Early development of artificially initiated turbulent spots. Journal of Fluid Mechanics, 916, Article A1. https://doi.org/10.1017/jfm.2021.152

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
Ding, G., Choi, K.-S., Ma, B., Kato, T., & Yuan, W. (2021). Transitional pulsatile flows with stenosis in a two-dimensional channel. Physics of Fluids, 33(3), Article 034115. https://doi.org/10.1063/5.0042753

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
Sun, Q., Zhao, Y., Choi, K.-S., & Mao, X. (2021). Molecular dynamics simulation of thermal de-icing on a flat surface. Applied Thermal Engineering, 189, Article 116701. https://doi.org/10.1016/j.applthermaleng.2021.116701

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.