Pressure drop in microchannels filled with porous media

Ali Tamayol, A. Khosla, B. Gray, M. Bahrami

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

2 Citations (Scopus)

Abstract

The pressure drop in microchannels filled with porous media formed by square arrays of cylinders (micro-porous channels) is investigated. Combining the Brinkman equation and the existing models for permeability of regular arrays of cylinders, the pressure drop in the considered micro-porous channels is calculated theoretically. Soft lithography method is used to fabricate several Polydimethylsiloxane (PDMS) microporous-channels with porosities in the range of 0.35 to 0.95, fiber diameters varying from 50 to 400 μ, and channel depth of approximately 100 μ. Distilled water is pushed through the samples using a syringe pump with steady flow rate and the resulting pressure drops are measured for several flow rates. The developed model captures the trends of experimental data for all of the samples. Our analysis indicates that a competing behaviour exists between the permeability and the channels dimensions for controlling the pressure drop. Therefore, the Darcy number should be used to determine the dominating parameter.

Original languageEnglish (US)
Title of host publicationASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010
Pages21-30
Number of pages10
EditionPARTS A AND B
DOIs
StatePublished - Dec 1 2010
EventASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2010 Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting - Montreal, QC, Canada
Duration: Aug 1 2010Aug 5 2010

Publication series

NameASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010
NumberPARTS A AND B

Other

OtherASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2010 Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting
CountryCanada
CityMontreal, QC
Period8/1/108/5/10

Fingerprint

Microchannels
Pressure drop
Porous materials
Flow rate
Syringes
Polydimethylsiloxane
Steady flow
Lithography
Porosity
Pumps
Water
Fibers

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Tamayol, A., Khosla, A., Gray, B., & Bahrami, M. (2010). Pressure drop in microchannels filled with porous media. In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010 (PARTS A AND B ed., pp. 21-30). (ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010; No. PARTS A AND B). https://doi.org/10.1115/FEDSM-ICNMM2010-30559

Pressure drop in microchannels filled with porous media. / Tamayol, Ali; Khosla, A.; Gray, B.; Bahrami, M.

ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010. PARTS A AND B. ed. 2010. p. 21-30 (ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010; No. PARTS A AND B).

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

Tamayol, A, Khosla, A, Gray, B & Bahrami, M 2010, Pressure drop in microchannels filled with porous media. in ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010. PARTS A AND B edn, ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010, no. PARTS A AND B, pp. 21-30, ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2010 Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, Montreal, QC, Canada, 8/1/10. https://doi.org/10.1115/FEDSM-ICNMM2010-30559
Tamayol A, Khosla A, Gray B, Bahrami M. Pressure drop in microchannels filled with porous media. In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010. PARTS A AND B ed. 2010. p. 21-30. (ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010; PARTS A AND B). https://doi.org/10.1115/FEDSM-ICNMM2010-30559
Tamayol, Ali ; Khosla, A. ; Gray, B. ; Bahrami, M. / Pressure drop in microchannels filled with porous media. ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010. PARTS A AND B. ed. 2010. pp. 21-30 (ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, ICNMM2010; PARTS A AND B).
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