ライブラリ登録: Guest
Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer.
July, 1-6, 2012, Bath, England

DOI: 10.1615/ICHMT.2012.CHT-12


ISBN: 978-1-56700-303-1

ISSN: 2578-5486

MIXED CONVECTION FLOW OVER A HORIZONTAL CIRCULAR CYLINDER WITH A CONSTANT SURFACE HEAT FLUX IN A NANOFLUID

pages 949-969
DOI: 10.1615/ICHMT.2012.CHT-12.580
Get accessGet access

要約

The laminar mixed convection boundary layer flow from a horizontal circular cylinder in a nanofluid, which is maintained at a constant surface heat flux, has been studied for both cases of a heated and cooled cylinder. The resulting system of nonlinear partial differential equations is solved numerically using an implicit finite-difference scheme. Three different types of nanoparticles are considered, namely Cu, Al2O3 and TiO2. The solutions for the flow and heat transfer characteristics are evaluated numerically and studied for various values of the governing parameters, namely the nanoparticle volume fraction φ and the mixed convection parameter λ. It is worth mentioning that heating the cylinder (λ > 0) delays the separation of the boundary layer and if the cylinder is hot enough (large values of λ > 0), then it is suppressed completely. On the other hand, cooling the cylinder (λ < 0) brings the boundary layer separation point nearer to the lower stagnation point and for a sufficiently cold cylinder (large values of λ < 0), the flow completely detaches from the cylinder.

Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集 価格及び購読のポリシー Begell House 連絡先 Language English 中文 Русский Português German French Spain