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http://bura.brunel.ac.uk/handle/2438/6735| Title: | Experimental study of non-Newtonian fluid flow in microchannels |
| Authors: | Tang, GH Wang, FF Zhang, SX Lu, YB Tao, WQ 3rd Micro and Nano Flows Conference (MNF2011) |
| Keywords: | Non-Newtonian fluid;Microchannels;PAM solution;Electroviscous effect |
| Issue Date: | 2011 |
| Publisher: | Brunel University |
| Citation: | 3rd Micro and Nano Flows Conference, Thessaloniki, Greece, 22-24 August 2011 |
| Abstract: | Non-Newtonian fluid flow in microchannels has significant applications in science and engineering. The effects of temperature and PAM solution concentrations on rheological parameters are analyzed by measuring them with rotating cylinder viscometer. Flow characteristics for deionized water and PAM solutions in fused silica microtubes with diameters ranging from 50 to 320μm, fused silica square microchannels with diameters 75 and 100μm, and stainless steel microtubes with diameters from 120 to 362μm, are studied experimentally. The test results for deionized water in microchannels are in good agreement with theoretical predictions for conventional-size channels. Friction factors of PAM solutions are much higher than theoretical predictions. With the PAM concentration reduced, the deviation is more, which is possibly caused by the significant electroviscous effect on PAM solutions flow in microchannels. |
| Description: | This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, Aristotle University of Thessaloniki, University of Thessaly, IPEM, the Process Intensification Network, the Institution of Mechanical Engineers, the Heat Transfer Society, HEXAG - the Heat Exchange Action Group, and the Energy Institute. |
| URI: | http://bura.brunel.ac.uk/handle/2438/6735 |
| ISBN: | 978-1-902316-98-7 |
| Appears in Collections: | Brunel Institute for Bioengineering (BIB) The Brunel Collection |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| MNF2011.pdf | 800.19 kB | Adobe PDF | View/Open |
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