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Keywords: contact angle
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. April 2020, 142(4): 041404.
Paper No: FE-19-1263
Published Online: January 24, 2020
... inlet and wall wettability quantified by the contact angle ( θ ) using volume of fluid (VOF) model. These parameters have been found to alter the droplet shape and size greatly. The effect of intersection angles has been examined for φ = 15 deg, 30 deg, 45 deg, 60 deg, 90 deg, and 120 deg for generating...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. December 2011, 133(12): 121304.
Published Online: December 23, 2011
... meniscus motion, and thus allow the calculation of meniscus frequency, amplitude, contact points and contact angles. Both natural frequency and flow excited tests were conducted. Natural frequency tests were also conducted using mercury which has a nonwetting contact angle typical of molten metals...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 2010, 132(5): 051206.
Published Online: May 14, 2010
... hydrophobicity buoyant force contact angle multiwalled carbon nanotubes shape optimization The importance of the geometrical morphology in hydrophobicity such as microstructures of lotus leaves ( 1 2 3 ), butterfly wings ( 4 ), rice leaves ( 5 ), nanosized grooves of water strider legs ( 6 7 8 9...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. June 2009, 131(6): 061202.
Published Online: May 13, 2009
...Auro Ashish Saha; Sushanta K. Mitra A two-dimensional numerical simulation of flow in patterned microchannel with alternate layers of different sizes of hydrophilic and hydrophobic surfaces at the bottom wall is conducted here. The effect of specified contact angle and working fluid (de-ionized (DI...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 2008, 130(8): 081603.
Published Online: July 30, 2008
... to create an electrostatic pressure, giving rise to the transport of individual liquid slugs. This paper examines the nature of the force distribution for both EWOD and DEP actuated droplets. The effects of system parameters such as contact angle and electrode length on the shape of the force density...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. August 2007, 129(8): 957–965.
Published Online: February 2, 2007
... on the liquid meniscus. Based on a proper model for the macroscopic dynamic contact angle, the evolution of the liquid meniscus, including the moving speed and the shape, is obtained. The wall condition of zero dynamic contact angle is allowed. The resulting slipping velocity at the contact line resolves...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. April 2007, 129(4): 388–394.
Published Online: June 2, 2006
...Zhiliang Wan; Hongjun Zeng; Alan Feinerman This paper reports experimental investigations on the electrowetting effect of liquid metals, e.g., mercury, on dielectric films. Largest contact angle change of 74 deg (from 141 deg to 67 deg ) is achieved on top of a Parylene film. Highly reversible...