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Article
Closed portable electrowetting-on-dielectric system for actuation of water droplets
We describe the design and performance of a portable closed electrowetting-on-dielectric (EWOD) system for digital microfluidics applications. The system is cost-effective and is capable of controlling the mot...
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Article
Intelligent computational offloading for mobile-edge server computing and hybrid optimal resource allocation
To get beyond the limitations of mobile devices, the mobile cloud is an emerging technology. Offloading resource-intensive applications to distant data centres enabled by the cloud is hel** us achieve that. ...
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Chapter and Conference Paper
Droplet Growth and Drop Size Distribution Model for Dropwise Condensation on Hydrophobic Tubular Surfaces
Condensation over a tubular surface has a wide range of applications. A steady-state mathematical model for droplet condensation of saturated water vapor on the outer surface of a hydrophobic tube is proposed....
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Chapter and Conference Paper
Pulsatile Hemodynamics in a Symmetric and Asymmetric Stenosed Bend Arterial Model
Atherosclerosis is a medical syndrome marked by an arterial constriction triggered by cholesterol accumulation. These deposits obstruct blood flow and cause flow impediment. A symmetric stenosis occurring arou...
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Chapter and Conference Paper
Electrically Driven Continuous Motion of a Water Droplet Over a Single Active Electrode
This paper studies electrically-driven continuous motion of a liquid droplet placed on a dielectric surface using a single active electrode. In an experiment, an open electrowetting-on-dielectric (EWOD) config...
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Chapter and Conference Paper
Sustainability and Sensitivity: Learnings from the Foundation Programs of Bauhaus, Ulm, NID and IDC
The aspirational needs of the societies, the scale and magnitude of consumption and the world population of nearly eight billion have combinedly caused adverse consequences to the planet and life on earth. The...
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Chapter and Conference Paper
Foundation Workshops as Enrichers of Architectural Design Studios
According to Geoffery Broadbent, a noted architectural theorist, the core skill of an architect is visualization, i.e., the ability to visualize a building in three dimensions in response to a given site and a...
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Article
Understanding vertical coalescence dynamics of liquid drops over a superhydrophobic surface using high-speed orthographic visualization
Experiments on coalescence are carried out with two water drops over a chemically textured superhydrophobic surface (equilibrium contact angle ~ 150° and contact angle hysteresis ~ 10°), with one drop initiall...
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Article
Super-Hydrophobic Nanostructured Silica Coating on Aluminum Substrate for Moist Air Condensation
In the present work, nanostructured functionalized silica is coated on an aluminum (Al) substrate by the spray pyrolysis method to create a stable and effective super-hydrophobic substrate for water harvesting...
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Article
Electrowetting-on-Dielectric System for COVID-19 Testing
The ongoing viral outbreak labeled COVID-19 is spreading rapidly across states and is posing a great threat to public health. Rapid identification of the virus in the population plays a crucial role in isolati...
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Chapter
Simulation in a Parallel Environment
Condensation is either in filmwise or dropwise mode depending upon the wetting properties of the condensing liquid. Condensation occurs in the form of a film if the condensing liquid wets the substrate; otherw...
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Chapter
Simulation: Dropwise Condensation of Water
Simulations have been performed for water vapor condensation underneath a horizontal and an inclined textured substrate. A horizontal surface having unidirectional wettability gradient has also been considered...
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Chapter
Closing Remarks and Prospects
An overview of the dropwise condensation process is presented in the preceding chapters. It involves vapor-to-liquid phase change in the form of discrete drops on or underneath horizontal and inclined substrat...
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Chapter
Spreading of Sessile and Pendant Drops on Partially Wetting Surfaces
Spreading dynamics of an initially spherical liquid drop over a partially wetting textured surface is analyzed by solving an integral form of the governing equations. The mathematical model extends Navier-Stok...
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Chapter
Introduction to Evaporative Heat Transfer
Evaporation refers to the change of phase occurring at the air or gas interface formed with a liquid medium. The discussion here is restricted to evaporation of a water body. The quantity of importance is the ...
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Chapter
Modeling Dropwise Condensation: From Atomic Scale to Drop Instability
The large body of literature available on the subject suggests the following three independent mechanisms of dropwise condensation: (1) The vapor condenses primarily between the droplets, i.e., the droplet-fre...
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Chapter
Dropwise Condensation: Experiments
Experimental determination of the heat transfer coefficient during dropwise condensation is a difficult task because of the many intricacies involved. The driving temperature difference is small, essentially r...
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Chapter
Measurement of Condensation Heat Transfer
Optimum design of any thermal system requires detailed and experimentally verifiable knowledge of spatio-temporal heat transfer rates. Several techniques are available to estimate the heat flux and hence the h...
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Chapter
Evaporation Dynamics of a Sessile Droplet on a Hydrophobic Surface
Contrasting dropwise condensation, evaporation of a water droplet on a hydrophobic but conducting surface under ambient conditions is discussed in the present chapter. Interfacial evaporation rates and evapora...
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Chapter
Droplet Statics
Dropwise condensation (DWC) is accomplished in a two-phase (liquid-vapor) system at selected nucleation sites by transferring the latent heat release through the walls of the container. Heat release is at the ...
