Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Chaurasia, Ankur S. Josephides, Dimitris N. Sajjadi, Shahriar |
| Copyright Year | 2014 |
| Abstract | Droplets formed under the buoyancy force in a quiescent continuous phase provides a facile yet interesting system for fundamental studies on the drop-rupture mechanism, which was a field of vast research interest prior to the arrival of the microfluidic techniques. The formation of macro-drops via a microchannel in a buoyancy-driven system is revisited for three low-viscosity hydrocarbon oils using a wide range of surfactant concentrations. The dripping-to-jetting transition was found to occur at a Bond number of ~0.85, reflecting the significance of buoyancy force even in the jetting regime. The pinch-off time and the satellite drops were found to have negligible impact on the final drop volume throughout the dripping regime. A modified force balance model is presented which includes the dynamic interfacial tension based on the surface-average age of the drop. The model clearly predicts a region where the drop size increases initially with dispersed phase flow rate (Q) due to increasing dynamic interfacial tension, followed by a region of constant drop size with Q, where the increase in interfacial force is compensated by an equal increase in the kinetic force. Polydispersity in the drops formed under the jetting regime was found to vary in accordance with the polydispersity in the break-up length of the drops. Interestingly, highly monodisperse drops were not limited to dripping regime and formed under the jetting regime at a higher frequency too, but only under certain flow rate and interfacial tension conditions. |
| Starting Page | 943 |
| Ending Page | 953 |
| Page Count | 11 |
| File Format | |
| ISSN | 16134982 |
| Journal | Microfluidics and Nanofluidics |
| Volume Number | 18 |
| Issue Number | 5-6 |
| e-ISSN | 16134990 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-09-24 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Buoyancy Dynamic interfacial tension Polydispersity Pinch-off time Engineering Fluid Dynamics Biomedical Engineering Analytical Chemistry Nanotechnology and Microengineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Materials Chemistry Condensed Matter Physics Electronic, Optical and Magnetic Materials |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| 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 |
|
Loading...
|