61 citations · 125 across the 9 of their papers we have counts for
10 papers
Optimization of Patterned Surfaces for Improved Superhydrophobicity Through Cost-Effective Large-Scale Computations
V. Krokos, G. Pashos, A. N. Spyropoulos +3
The growing need for creating surfaces with specific wetting properties, such as superhyrdophobic behavior, asks for novel methods for their efficient design. In this work, a fast…
Effect of substrate topography, material wettability and dielectric thickness on reversible electrowetting
Nikolaos T. Chamakos, George Karapetsas, Athanasios G. Papathanasiou
Recent experiments by Kavousanakis et al., Langmuir, 2018 [1], showed that reversible electrowetting on superhydrophobic surfaces can be achieved by using a thick solid dielectric…
Droplet spreading on rough surfaces: tackling the contact line boundary condition
Nikolaos T. Chamakos, Michail E. Kavousanakis, Andreas G. Boudouvis +1
The complicated dynamics of the contact line of a moving droplet on a solid substrate often hamper the efficient modeling of microfluidic systems. In particular, the selection of t…
Modeling of multiple three phase contact lines of liquid droplets on geometrically patterned surfaces: continuum and mesoscopic analysis
Nikolaos T. Chamakos, Michail E. Kavousanakis, Athanasios G. Papathanasiou
By solving the Young Laplace equation of capillary hydrostatics one can accurately determine equilibrium shapes of droplets on relatively smooth solid surfaces. The solution, howev…
Engineering the geometry of stripe-patterned surfaces towards efficient wettability switching
Michail E. Kavousanakis, Carlos E. Colosqui, Athanasios G. Papathanasiou
The ability to control wettability is important for a wide range of technological applications in which precise microfluidic handling is required. It is known that predesigned roug…
A mesoscopic model for microscale hydrodynamics and interfacial phenomena: Slip, films, and contact angle hysteresis
Carlos E. Colosqui, Michail E. Kavousanakis, Athanasios G. Papathanasiou +1
We present a model based on the lattice Boltzmann equation that is suitable for the simulation of dynamic wetting. The model is capable of exhibiting fundamental interfacial phenom…
Evaluating the robustness of top coatings comprising plasma-deposited fluorocarbons in electrowetting systems
Dimitrios P. Papageorgiou, Elias P. Koumoulos, Costas A. Charitidis +2
Thin dielectric stacks comprising a main insulating layer and a hydrophobic top coating are commonly used in low voltage electrowetting systems. However, in most cases, thin dielec…
Superior performance of multilayered fluoropolymer films in low voltage electrowetting
Dimitrios P. Papageorgiou, Angeliki Tserepi, Andreas G. Boudouvis +1
The requirement for low operational voltage in electrowetting devices, met using thin dielectrics, is usually connected with serious material failure issues. Dielectric breakdown (…
A Hybrid Boundary Element Method for Elliptic Problems with Singularities
George Pashos, Athanasios G. Papathanasiou, Andreas G. Boudouvis
The singularities that arise in elliptic boundary value problems are treated locally by a singular function boundary integral method. This method extracts the leading singular coef…
The normal field instability under side-wall effects: comparison of experiments and computations
C Gollwitzer, A N Spyropoulos, A G Papathanasiou +2
We consider a single spike of ferrofluid, arising in a small cylindrical container, when a vertically oriented magnetic field is applied. The height of the spike as well as the sur…