图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

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

雾化与喷雾

DOI: 10.1615/AtomizSpr.v19.i2.20
pages 135-155

CONTROLLING LIQUID JET BREAKUP WITH PRACTICAL PIEZOELECTRIC DEVICES

Mina Rohani
Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA
Deanna Kristine Iobbi
Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA
Derek Dunn-Rankin
Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA
Faryar Jabbari
Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA

ABSTRACT

Based on Rayleigh's linear theory of capillary jets, a single unstable disturbance applied to the surface of a jet grows exponentially until it breaks the jet into droplets. In practice, however, droplet generators apply multiple-frequency perturbations on the surface of the jet, thereby causing unintended surface wave propagation. This phenomenon can occur in a frequency range where the disturbance components with different wavenumbers compete with each other for breakup. In this article, we study the interaction of disturbance modes and explore the opportunity for managing these structural influences. The goal is to suppress the resonance effects to control droplet size and spacing over a wide range of frequencies. By creating an input/output model that represents the actuator and solving an inverse problem, we can determine the input signals capable of yielding a single-frequency driving perturbation. We also present experimental results that demonstrate the feasibility of producing uniform droplets using a composite input signal.


Articles with similar content:

MODELING THE BREAKUP OF LIQUID JETS SUBJECTED TO PURE AND COMPOSITE DISTURBANCES
Atomization and Sprays, Vol.22, 2012, issue 7
Sadegh Dabiri, Faryar Jabbari, Mina Rohani, Derek Dunn-Rankin
WATER-IN-AIR DROPLET GENERATION IN A T-JUNCTION GEOMETRY
3rd Thermal and Fluids Engineering Conference (TFEC), Vol.7, 2018, issue
S. Seo, M. Mastiani, Myeongsub (Mike) Kim
TAILORED LIQUID JET ATOMIZATION
Atomization and Sprays, Vol.18, 2008, issue 4
D. R. Woods, Sung P. Lin
PRODUCTION OF HIGHLY UNIFORM SOLDER SPHERES USING A DIGITAL INTEGRAL CONTROL SCHEME
Atomization and Sprays, Vol.9, 1999, issue 6
Jung-Hoon Chun, Juan C. Rocha
APPLICATION OF TRANSIENT HOT WIRE METHOD TO MEASURE THERMAL CONDUCTIVITY OF A CONDUCTIVE MEDIUM
International Heat Transfer Conference 7, Vol.10, 1982, issue
Y. Kurosaki, M. Suzuki, M. Take-uchi, K. Nagata