Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Atomization and Sprays
Импакт фактор: 1.262 5-летний Импакт фактор: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684

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

Atomization and Sprays

DOI: 10.1615/AtomizSpr.v6.i2.30
pages 167-191

MEASUREMENT OF EXTENSIONAL VISCOSITY OF POLYMER SOLUTIONS AND ITS EFFECTS ON ATOMIZATION FROM A SPRAY NOZZLE

R. W. Dexter
American Cyanamid Company, Princeton, New Jersey 08543

Краткое описание

A simple method is described for the evaluation of the extensional viscosity of dilute polymer solutions typically used as drift control adjuvants in agricultural sprays. Extensional viscosity characteristics were determined for a wide range of polymer types and molecular weights, by measurements of the flow of solutions through a packed bed of screens over a range of pressure. The polymer types are classified according to their extensional viscosity-strain rate response characteristics. The effects of molecular weight, concentration, and polymer type are discussed. A correlation is demonstrated for all the polymer solutions tested relating the extensional viscosity at strain rates occurring in agricultural spray processes with the droplet size distribution. Shear viscosity and polymer concentration also affect the median droplet size, but no correlation exists over all polymers.


Articles with similar content:

INFLUENCE OF LIQUID VISCOSITY ON PRESSURE-SWIRL ATOMIZER PERFORMANCE
Atomization and Sprays, Vol.1, 1991, issue 1
Arthur H. Lefebvre, S. Kevin Chen, J. Rollbuhler
Measurement of the Extensional Properties of Polyacrilamide Solutions Using the Falling Droplet Technique
International Journal of Fluid Mechanics Research, Vol.24, 1997, issue 4-6
Norman Chigier, Adel Mansour
THE INFLUENCE OF VISCOELAST1C FLUID PROPERTIES ON SPRAY FORMATION FROM FLAT-FAN AND PRESSURE-SWIRL ATOMIZERS
Atomization and Sprays, Vol.12, 2002, issue 1-3
Günter Brenn, Franz Durst, M. Stelter
WATER DISTRIBUTION CHARACTERISTICS OF DIAPHRAGM-TYPE PRESSURE ATOMIZER FOR WATERING AND IRRIGATION
Atomization and Sprays, Vol.28, 2018, issue 4
W. Makac, M. Matuszak, A. Gosciniak, Marek Ochowiak, S. Włodarczak, M. Doligalski, T. Szulc
SHEET ATOMIZATION OF NON-NEWTONIAN LIQUIDS
Atomization and Sprays, Vol.13, 2003, issue 2&3
Thomas J. Hartranft, Gary S. Settles