Numerical Simulation and Enalysis of an Electrokinetically-driven Microdispenser

Haroutunian, Artin | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 41218 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Saeedi, Mohammad Saeed; Shafiee, Mohammad Behshad
  7. Abstract:
  8. Nowadays Lab-on-a-chip systems are being widely used in medical applications, especially in analyzing minute volumes of blood for diagnosis and treatment of some crucial diaseses like diabetic. A Lab-on-a-chip is comprised of a variety of components such as micromixer, microdispenser, detection and separation units and so on. In this thesis, however, we have analyzed and numerically simulated a microdispenser which is electrokinetically driven. In other words, electrical potentials are applied to electrodes in order to conduct two fluids within a cross microchannel, and distribution of a sample fluid takes place due to appropriately applied potentials. In order to analyze and simulate the function of an electroosmotic microdispenser, first a brief introduction about its geometry and function is provided. Then, the governing equations -needed to be solved in order to obtain the velocity, concentration and electrical field distributions- are presented, and our numerical scheme is discussed. On the next step, a parametric study is conducted in order to analyze the effects of each influential parameter on the performance of the microdispenser and finally, the future work is described
  9. Keywords:
  10. Numerical Solution ; Electrokinetics Remediation ; Lab-on-a-Chip ; Electrokinetic Dispenser

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