It is well known that some water-suspension of minerals show a thixotropic characteristics from a viewpoint of rheology. It is usually considered that such rheological properties are due to the inner structure of suspensions. Such an inner structure of suspension may also exerts some effects on the thermophysical properties, and accordingly, on the heat transfer characteristics. In the present paper, heat transfer characteristics of non-Newtonian suspensions flow over a vertical heated plate have been investigated experimentally. Water suspensions of mineral powders such as bentonite and attapulgite were employed as sample fluids. Local heat transfer coefficients were determined under a variety of parameters such as concentration of suspension and flow velocity. Measurement results showed that the change of shear rate near the wall had some effects on the thermophysical properties of sample fluid, and that not only rheological properties of fluid but also its thermophysical properties near the heat transfer surface might exert a considerable effect on the heat transfer characteristics within the parameter range of the present study.
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ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference
July 8–12, 2007
Vancouver, British Columbia, Canada
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-4275-4
PROCEEDINGS PAPER
Forced-Convection Heat Transfer Characteristic of Non-Newtonian Suspension
Masahiko Yamada,
Masahiko Yamada
Hokkaido University, Sapporo, Hokkaido, Japan
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Takeshi Nakajima,
Takeshi Nakajima
Hokkaido University, Sapporo, Hokkaido, Japan
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Natsuro Takama,
Natsuro Takama
Hokkaido University, Sapporo, Hokkaido, Japan
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Koh Nakamura
Koh Nakamura
Hokkaido University, Sapporo, Hokkaido, Japan
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Masahiko Yamada
Hokkaido University, Sapporo, Hokkaido, Japan
Takeshi Nakajima
Hokkaido University, Sapporo, Hokkaido, Japan
Natsuro Takama
Hokkaido University, Sapporo, Hokkaido, Japan
Koh Nakamura
Hokkaido University, Sapporo, Hokkaido, Japan
Paper No:
HT2007-32643, pp. 587-593; 7 pages
Published Online:
August 24, 2009
Citation
Yamada, M, Nakajima, T, Takama, N, & Nakamura, K. "Forced-Convection Heat Transfer Characteristic of Non-Newtonian Suspension." Proceedings of the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 2. Vancouver, British Columbia, Canada. July 8–12, 2007. pp. 587-593. ASME. https://doi.org/10.1115/HT2007-32643
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