Research Repository

See what's under the surface


Hydrophobic/icephobic coatings based on thermal sprayed metallic layers with subsequent surface functionalization (2018)
Journal Article
Liu, J., Wang, J., Memon, H., Fu, Y., Barman, T., Choi, K., & Hou, X. (2019). Hydrophobic/icephobic coatings based on thermal sprayed metallic layers with subsequent surface functionalization. Surface and Coatings Technology, 357, (267-272). doi:10.1016/j.surfcoat.2018.10.002. ISSN 0257-8972

Hydrophobic/icephobic coatings have been fabricated using a combination of thermal sprayed metallic MCrAlY (M = Ni, Co) coatings with a subsequent deposition process using 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS). The MCrAlY coatings provide... Read More

Plasma virtual-roughness elements for cross-flow instability control (2018)
Journal Article
Choi, K., & Kim, J. (2018). Plasma virtual-roughness elements for cross-flow instability control. Experiments in Fluids, 59, doi:10.1007/s00348-018-2609-x. ISSN 0723-4864

Recent experiments and numerical simulations demonstrated that discrete roughness elements can be used to control cross-flow instability over a swept wing. Here, the application of this passive technique requires a row of thin cylindrical elements of... Read More

Development and evaluation of poly(dimethylsiloxane) based composite coatings for icephobic applications (2018)
Journal Article
Liu, J., Wang, J., Mazzola, L., Memon, H., Barman, T., Turnbull, B., …Hou, X. (2018). Development and evaluation of poly(dimethylsiloxane) based composite coatings for icephobic applications. Surface and Coatings Technology, 349, doi:10.1016/j.surfcoat.2018.06.066. ISSN 0257-8972

Formation and accretion of ice on the leading edge surface of aircrafts wings may lead to disasters. The current de-icing system for aircraft will build up weight, increase energy consumption and add complexity to the aircraft systems. Development of... Read More

Output feedback control of flow separation over an aerofoil using plasma actuators (2018)
Journal Article
Broglia, R., Choi, K., Houston, P., Pasquale, L., & Zanchetta, P. (2018). Output feedback control of flow separation over an aerofoil using plasma actuators. International Journal of Numerical Analysis and Modeling, 15(6), ISSN 1705-5105

We address the problem of controlling the unsteady flow separation over an aerofoil, using plasma actuators. Despite the complexity of the dynamics of interest, we show how the problem of controlling flow separation can be formulated as a simple set... Read More

Performance and durability tests of smart icephobic coatings to reduce ice adhesion (2017)
Journal Article
Janjua, Z. A., Turnbull, B., Choy, K., Pandis, C., Liu, J., Hou, X., & Choi, K. (2017). Performance and durability tests of smart icephobic coatings to reduce ice adhesion. Applied Surface Science, 407, doi:10.1016/j.apsusc.2017.02.206. ISSN 0169-4332

The accretion of ice can damage applications ranging from power lines and shipping decks; to wind turbines and rail infrastructure. In particular on aircraft, it can change aerodynamic characteristics, greatly affecting the flight safety. Commercial... Read More

Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers (2016)
Journal Article
Liu, J., Janjua, Z. A., Roe, M., Xu, F., Turnbull, B., Choi, K., & Hou, X. (2016). Super-hydrophobic/icephobic coatings based on silica nanoparticles modified by self-assembled monolayers. Nanomaterials, 6(12), doi:10.3390/nano6120232. ISSN 2079-4991

A super-hydrophobic surface has been obtained from nanocomposite materials based on silica nanoparticles and self-assembled monolayers of 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) using spin coating and chemical vapor deposition methods. Scann... Read More

Drag reduction in turbulent channel flow using bidirectional wavy Lorentz force (2014)
Journal Article
Huang, L., Choi, K., Fan, B., & Chen, Y. (2014). Drag reduction in turbulent channel flow using bidirectional wavy Lorentz force. SCIENCE CHINA Physics, Mechanics and Astronomy, 57(11), doi:10.1007/s11433-014-5416-2. ISSN 1674-7348

Turbulent control and drag reduction in a channel flow via a bidirectional traveling wave induced by spanwise oscillating Lorentz force have been investigated in the paper. The results based on the direct numerical simulation (DNS) indicate that the... Read More