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Unified Entry Length Correlation for Newtonian, Power Law and Bingham Fluids in Laminar Pipe Flow at Low Reynolds Number.
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- Ookawara Shinichi
- Department of Chemical Engineering, Tokyo Institute of Technology
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- Ogawa Kohei
- Department of Chemical Engineering, Tokyo Institute of Technology
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- Dombrowski Norman
- Department of Chemical Engineering, University of Leeds
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- Amooie-Foumeny Esmail
- Department of Chemical Engineering, University of Leeds
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- Riza Ahmed
- Department of Chemical Engineering, University of Leeds
Bibliographic Information
- Other Title
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- Unified Entry Length Correlation for Newtonian,Power Law and Bingham Fluids in Laminar Pipe Flow at Low Reynolds Number(SC)
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Description
It is shown that the entry flow of a Bingham fluid is not fully developed at the axial position where the center line velocity reaches 99% of the fully developed value, which is the classical definition. Therefore, the entry length of the Bingham fluid is determined based on the newly expanded definition in this study, viz., the axial length where the velocity at the radial position of 95% of plug radius, reaches 99% of the fully developed value. For a power law fluid, the entry length is determined based on the classical definition.<br>In order to obtain the corrected Reynolds number Re*, Ito’s method is employed in this study. It is shown that the entry lengths of Newtonian, Bingham and power law fluids are correlated by the same equations in the range of Re* < 20.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 33 (4), 675-678, 2000
The Society of Chemical Engineers, Japan
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Details 詳細情報について
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- CRID
- 1390282679543292288
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- NII Article ID
- 130000020363
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- NII Book ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD3cXnt1ynsbs%3D
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 5503846
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed