POLISH ACADEMY of SCIENCES
TECHNICAL SCIENCES
Micro and Nano -scale mechanics
| BULLETIN
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POLISH ACADEMY of SCIENCES TECHNICAL SCIENCES |
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| Volume
53, Issue 4, December 2005
Micro and Nano -scale mechanics |
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| Aims&Scope, Subscription | Editors | Authors' guide | Vol 53-4 | mirror: http://fluid.ippt.gov.pl/~bulletin/ |
| pp 343 - 349 |
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Roughness effects at microscale – reassessing Nikuradse’s experiments on liquid flow in rough tubes |
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| S. G. Kandlikar |
| The topic of incompressible fluid flow in rough channels is of practical interest in many diverse applications. It also forms the basis of our understanding of fluid-wall interactions, turbulent eddy generation, and their effect on the frictional pressure losses. Although this topic is also of fundamental interest, the work in this area is entirely guided by the experimental work of earlier investigators [1–6]. The works by Nikuradse [4] and Colebrook [5] constitute a major milestone from which useful empirical models are derived. As we approach the microscale, Nikuradse’s experimental work again is brought to focus, perhaps this time to gain an insight into the mechanisms affecting fluid-wall interaction in rough channels. In this paper, Nikuradse’s work is revisited in light of the recent experimental work on roughness effects in microscale flow geometries. |
| Keywords: |
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roughness, liquid flow, rough tube, Nikuradse’s experiments |
| Issue Index | Scope Index | Web Info | |
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| Aims&Scope, Subscription | Editors | Authors' guide | Vol 53-4 |
| Copyright
- Bulletin of the Polish Academy of Sciences: Technical Sciences
12 January 2006, site prepared by KZ |
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