Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Atomization and Sprays
Fator do impacto: 1.737 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

Volumes:
Volume 30, 2020 Volume 29, 2019 Volume 28, 2018 Volume 27, 2017 Volume 26, 2016 Volume 25, 2015 Volume 24, 2014 Volume 23, 2013 Volume 22, 2012 Volume 21, 2011 Volume 20, 2010 Volume 19, 2009 Volume 18, 2008 Volume 17, 2007 Volume 16, 2006 Volume 15, 2005 Volume 14, 2004 Volume 13, 2003 Volume 12, 2002 Volume 11, 2001 Volume 10, 2000 Volume 9, 1999 Volume 8, 1998 Volume 7, 1997 Volume 6, 1996 Volume 5, 1995 Volume 4, 1994 Volume 3, 1993 Volume 2, 1992 Volume 1, 1991

Atomization and Sprays

DOI: 10.1615/AtomizSpr.2018027237
pages 857-873

DEVELOPMENT OF A SPREAD SUBMODEL FOR SPRAY/WALL IMPACTION

Hassan Khaleghi
Department of Mechanical Engineering, Tarbiat Modares University, Tehran,Iran
Sajad Yazdanparast
Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
MohammadReza Keshtkar
Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
Zahra Firouznia
Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

RESUMO

In this paper, a new spray/wall impingement model is developed and tested. This model is based on the momentum conservation law and experimental observations. A new formula is derived for the motion of a droplet in the spread regime of the wall impaction model based on analysis of droplet evolution dynamic with consideration of surface tension, and viscous and drag forces. Following the experimental findings, the new model consists of four representative regimes which are stick, rebound, spread, and splash. To validate the new model, numerical calculations are made using several experimental cases as well as a nonevaporating impinging spray on a flat wall. The results of the model are compared with the experimental data of spray tip penetration and wall impaction. Predicted spray penetration matches up with the experimental data. The results show that the new model generally predicts the spread and splash behavior, local droplet velocity, and size better than the existing models. In addition, this model is able to improve prediction of overall and internal structure of wall spray in comparison to existing models.


Articles with similar content:

DEVELOPMENT OF A NEW SPRAY/WALL INTERACTION MODEL FOR DIESEL SPRAY UNDER PCCI-ENGINE RELEVANT CONDITIONS
Atomization and Sprays, Vol.24, 2014, issue 1
Maozhao Xie, Lei Zhou, Hong Liu, Ming Jia, Yanzhi Zhang, Tianyou Wang
DEVELOPMENT OF AN IMPROVED SPRAY/WALL INTERACTION MODEL FOR DIESEL-LIKE SPRAY IMPINGEMENT SIMULATIONS
Atomization and Sprays, Vol.25, 2015, issue 7
Rolf D. Reitz, Qi Jiao, Peng Deng, Zhiyu Han
LIQUID FILM DYNAMIC ON THE SPRAY IMPINGEMENT MODELING
Atomization and Sprays, Vol.22, 2012, issue 9
Andre R. R. Silva, Christian M. G. Rodrigues, Jorge M. M. Barata
DEVELOPMENT OF A NEW MODEL AND HEAT TRANSFER ANALYSIS OF IMPINGING DIESEL SPRAYS ON A WALL
Atomization and Sprays, Vol.11, 2001, issue 1
Hong Sun Ryou, Seong Hyuk Lee
LINKING NOZZLE FLOW WITH SPRAY CHARACTERISTICS IN A DIESEL FUEL INJECTION SYSTEM
Atomization and Sprays, Vol.8, 1998, issue 3
Manolis Gavaises, C. Arcoumanis