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Article

# The Effects of Duct Shape on the Nusselt Number

by
M. Emin Erdoğan
and
C. Erdem Imrak
*
Faculty of Mechanical Engineering, Istanbul Technical University, 34439 Gumussuyu, Istanbul, Turkey
*
Author to whom correspondence should be addressed.
Math. Comput. Appl. 2005, 10(1), 79-88; https://doi.org/10.3390/mca10010079
Published: 1 April 2005

## Abstract

This article considers the effect of duct shape on the Nusselt number. In order to show the effects of duct shape on the Nusselt number, four illustrative examples are given: the heat transfer in a duct of rectangular cross-section, heat transfer in a duct of semicircular cross-section, the heat transfer in a duct of circular crosssection and heat transfer between two parallel plates. The method used in this paper is general and it can be applied al flows. It is not necessary to use thin plate analogy, first, the velocity distribution is obtained and then the temperature distribution is found. It is shown that the Nusselt numbers calculated for the four examples cited depend not only on duct shape but also on wall friction.
Keywords:

## Share and Cite

MDPI and ACS Style

Erdoğan, M.E.; Imrak, C.E. The Effects of Duct Shape on the Nusselt Number. Math. Comput. Appl. 2005, 10, 79-88. https://doi.org/10.3390/mca10010079

AMA Style

Erdoğan ME, Imrak CE. The Effects of Duct Shape on the Nusselt Number. Mathematical and Computational Applications. 2005; 10(1):79-88. https://doi.org/10.3390/mca10010079

Chicago/Turabian Style

Erdoğan, M. Emin, and C. Erdem Imrak. 2005. "The Effects of Duct Shape on the Nusselt Number" Mathematical and Computational Applications 10, no. 1: 79-88. https://doi.org/10.3390/mca10010079

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