Complex pressure pulses in micro-channels magnetically induced

Mario F. Leteller, Juan S. Stockle, Dennis A. Siginer, Francisco A. Ulloa

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Micro-channels are presently used extensively in applications related to biomedicine and others. These applications commonly involve flow patterns apt for separating particles in suspension, or fluid layers or fluid portions. In order to find a desired optimum performance it is necessary, among other factors, to determine the pressure gradients that would generate the required flow patterns. Presently the driving pressure gradients are produced by means of mechanical devices, such as syringe pumps, which have obvious limitations in the case where the flow timepattern is complex. High frequency flows with varying amplitude or swift changes in acceleration imply overcoming big inertia forces in mechanisms. In this paper it is presented a novel and alternative methods for providing complex pressure pulses for the case were the working fluid changes properties when affected by magnetic fields. It is shown that an appropriate arrangement of parallel tubes, subject to different magnetic fields, can induce a wide variety of pressure pulses in selected stations of the system. These stations can tie used for connecting the working channel. An analytical model is presented together with several applications.

Original languageEnglish
Title of host publicationProceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages10
EditionPART A
ISBN (Print)9780791843826
Publication statusPublished - Jan 1 2010
EventASME 2009 International Mechanical Engineering Congress and Exposition, IMECE2009 - Lake Buena Vista, FL, United States
Duration: Nov 13 2009Nov 19 2009


OtherASME 2009 International Mechanical Engineering Congress and Exposition, IMECE2009
Country/TerritoryUnited States
CityLake Buena Vista, FL

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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