The effects of flow rates to the concentration gradients in a passive micromixer low flow rate provides linear dilution of fluids

Sargunan Sundra, Chin Fhong Soon, Nurfarina Zainal, Kian Sek Tee, Siew Hua Gan

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

1 Citation (Scopus)


Over the last two decades, design and fabrication of micromixer have been an emerging trend in research field of microfluidic. Micromixers are generally categorised into two types which are the passive micromixer dependent on pumping energy and active micromixer that relies on external energy to achieve fluid mixing in desired parameters. This paper presents the micromixing simulation of two fluids of different concentrations from two inlets to generate four distinguished concentration gradient of output in four outlets. The blueprint of the micromixer was designed using Solidworks, computer-Aided design software. The 2D model design was imported to COMSOL Multiphysics 4.2 to simulate the fluid mixing. The suggested physic modules were applied on the 2D model to aid the fluids dilution and mixing process. Linear dilution was achieved by applying low flow rates to the micromixer.

Original languageEnglish
Title of host publicationIECBES 2016
Subtitle of host publicationIEEE-EMBS Conference on Biomedical Engineering and Sciences
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781467377911
Publication statusPublished - 2016
Externally publishedYes
EventIEEE-EMBS International Conference on Biomedical Engineering and Sciences (IECBES) 2016 - Kuala Lumpur, Malaysia
Duration: 4 Dec 20168 Dec 2016 (Proceedings)


ConferenceIEEE-EMBS International Conference on Biomedical Engineering and Sciences (IECBES) 2016
Abbreviated titleIECBES 2016
CityKuala Lumpur
Internet address


  • COMSOL Multiphysics
  • concentration gradients
  • Creeping flow
  • Microfluidic
  • micromixer
  • Solidworks
  • Transport of diluted species

Cite this