ライブラリ登録: Guest
International Heat Transfer Conference 13
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

DROPLET STREAM INTERFERENCE EFFECTS IN THE THERMAL AND HYDRODYNAMIC ENTRANCE REGION OF CIRCULAR DUCTS

page 12
DOI: 10.1615/IHTC13.p12.220
Get accessGet access

要約

Liquid spray atomization and vaporization is used in a wide variety of applications with industrial interest. The present paper studies the vaporization of isolated fuel droplets and linear arrays of fuel droplets in convective regimes inside cylindrical ducts under assumptions that allow comparisons with analytical solutions. The fuel droplets are positioned along the tube centerline allowing an axisymmetric analysis of the physical problem. For the gaseous phase, momentum, energy and species conservation equations are discretized using the Finite Difference Method. An implicit scheme is applied and the resulting system of algebraic equations is solved through iterative techniques with local error control. The discrete phase treatment makes use of vaporization models, avoiding numerical treatment of a non-regular domain. Results are obtained for laminar flow with different tube entrance conditions and number of droplets in the linear array. Limiting cases of isolated droplets and single-phase flows are used to validate and calibrate the developed numerical code. The analysis of the numerical results is focused on individual droplet vaporization rates, the fuel-air mixture at tube exit and on heat transfer parameters along the solid contours.

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