NDLI: Flow past superhydrophobic surfaces containing longitudinal grooves: effects of interface curvature

Content Provider	Springer Nature Link
Author	Teo, C. J. Khoo, B. C.
Copyright Year	2010
Abstract	This article considers Couette and Poiseuille flows past superhydrophobic surfaces containing alternating micro-grooves and ribs aligned longitudinally to the flow. The effects of interface curvature on the effective slip length are quantified for different shear-free fractions and groove–rib spatial periods normalized using the channel height. The numerical results obtained demonstrate the importance of considering interface curvature effects in ascertaining the effective slip length. The effective slip length and performance of longitudinal grooves are compared with those corresponding to transverse grooves, for which analytical results are available for small shear-free fractions and normalized groove–rib periodic spacing. For the same shear-free fraction and interface protrusion angle, the effective slip length corresponding to the Poiseuille flow is found to be strongly affected by the normalized groove–rib spacing, in contrast to the Couette flow. For the Poiseuille flow, when the interface deforms by large protrusion angles into the liquid phase, the effective slip length approaches zero or becomes negative for large values of shear-free fraction and normalized groove–rib spacing due to significant flow blockage effects.
Starting Page	499
Ending Page	511
Page Count	13
File Format	PDF
ISSN	16134982
Journal	Microfluidics and Nanofluidics
Volume Number	9
Issue Number	2-3
e-ISSN	16134990
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-01-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Superhydrophobic Microchannels Interface curvature Microfluidics Effective slip Drag reduction Biomedical Engineering Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Materials Chemistry Condensed Matter Physics Electronic, Optical and Magnetic Materials

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of interface deformation on flow through microtubes containing superhydrophobic surfaces with longitudinal ribs and grooves

Effects of interface curvature on Poiseuille flow through microchannels and microtubes containing superhydrophobic surfaces with transverse grooves and ribs

Liquid flow through microchannels with grooved walls under wetting and superhydrophobic conditions

Superhydrophobic, hierarchical, plasma-nanotextured polymeric microchannels sustaining high-pressure flows

Analysis of Stokes flow in microchannels with superhydrophobic surfaces containing a periodic array of micro-grooves

Assessment of drag reduction at slippery, topographically structured surfaces

The holy grail of microfluidics: sub-laminar drag by layout of periodically embedded microgrooves

Simulation of Effective Slip and Drag in Pressure-Driven Flow on Superhydrophobic Surfaces

Slip flow in non-circular microchannels

Flow past superhydrophobic surfaces containing longitudinal grooves: effects of interface curvature

Similar Documents

Effects of interface deformation on flow through microtubes containing superhydrophobic surfaces with longitudinal ribs and grooves

Effects of interface curvature on Poiseuille flow through microchannels and microtubes containing superhydrophobic surfaces with transverse grooves and ribs

Liquid flow through microchannels with grooved walls under wetting and superhydrophobic conditions

Superhydrophobic, hierarchical, plasma-nanotextured polymeric microchannels sustaining high-pressure flows

Analysis of Stokes flow in microchannels with superhydrophobic surfaces containing a periodic array of micro-grooves

Assessment of drag reduction at slippery, topographically structured surfaces

The holy grail of microfluidics: sub-laminar drag by layout of periodically embedded microgrooves

Simulation of Effective Slip and Drag in Pressure-Driven Flow on Superhydrophobic Surfaces

Slip flow in non-circular microchannels

Flow past superhydrophobic surfaces containing longitudinal grooves: effects of interface curvature