Investigating Fluid Mixing in Electro-Osmotic Flow Through Passive Micro-Mixers Having Square and Triangle Barriers
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2014, Vol 2, Issue 12
Abstract
Objective: In this article, a numerical study is conducted on mixing of two fluids in the liquid phase with two different concentrations of a chemical species in the electroosmotic flow. Methods: The base liquid is an electrolyte which flows in a twodimensional micro-channel having electrically charged walls. Lorentz electric force, which is used as stimulating flow factor, is created by applying an external electric field on the electric double layer (EDL) aroused by adjacency of electrolyte and charged wall. Results: To ensure the convergence of the results obtained from the computer program, equations are solved iteratively until the residual amount after solving each equation is less than machine error and independence of results from the number and location of network nodes is verified for an experimental flow. To increase the mixing efficiency, some square and triangle shaped obstacles are embedded on the micro channel wall. Herein, the fundamental principles for passive mixing as well as the effect of frequency and height of the barriers on mixing efficiency are studied. The obtained results from numerical solving of electro-osmotic flow in micro-channel are compared with the theoretical results and a very good agreement is observed.
Authors and Affiliations
Dina Sezavar| Department of Mechanical Engineering, University of Birjand, Birjand, Iran, Mohadeseh Miri| Department of Mechanical Engineering, University of Zabol, Zabol, Iran
Keywords
Related Articles
- EP ID EP13451
- DOI -
- Views 338
- Downloads 13
Assessment and mapping of desertification sensitivity in central part of Iran
Knowledge of behavior climatic indexes can be help to planning future programs Bahabad study area in the eastern part of the province of Yazd with a hot and dry climate, high potential evapotranspiration and low rainfa...
Identify factors that effecting on wood and papers student’s entrepreneurial spirit (case study: college of agricultural and natural resources of Tehran university)
The purpose of this study was to identify factors that effecting on wood and papers student’s entrepreneurial spirit. Statistical population of this research consisted of whole wood and paper students in college of ag...
The Investigation of Oil Yield of Three Varieties of Black Seed (Nigella Sativa) in Different Plant Densities
In In order to investigating changes range of oil yield and percentage attention to plant density on three varieties of black seed, an experiment was conducted in the form of factorial based on completely randomized bloc...
Health Positive Uses of Genetically Modified Food Crops as a Source of Biopharmaceuticals
Molecular farming, or bio-pharming, has recently received much of attention for production of valuable recombinant proteins, with a few already being marketed. The use of whole plants for synthesis of pharmaceutical pr...
The effect of ginger powder on performance, carcass characteristics and blood parameters of broilers
To study the effect of herb ginger powder on performance, carcass characteristics and blood parameters of broilers used from 192 broiler chicks (Ross ) in a completely randomized design with 4 treatments and 4 replicat...