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Characteristics of Turbulent Particle Transport in Human Airways under Steady and Cyclic Flows
(Elsevier, 2012-06-15)
Motion of monodispersed micron-sized particles suspended in air flow was studied on transparent model of human airways using Phase-Doppler Particle Analyser (P/DPA). Time-resolved velocity data for particles in size range ...
Energy conversion during effervescent atomization
(Elsevier, 2013-09-01)
The paper qualitatively describes processes during the internal flow, discharge of two-phase mixture as well as spray formation with a particular focus on the energy transfer during effervescent atomization of light heating ...
Spatially and Temporally Resolved Distributions of Liquid in an Effervescent Spray
(Begell House, 2012-11-24)
We employed Planar Laser-Induced Fluorescence (LIF) in combination with stereoscopic Particle Image Velocimetry for imaging of concentration and flux fields of liquid phase in an effervescent spray. Light heating oil (LHO) ...
Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions
(Begell House, 2008-01-01)
A new evaluation method of unsteadiness of the spray generated by an effervescent atomizer is presented. The method is based on measurements of pressure fluctuations in the atomizer mixing chamber. Measurements, made under ...
Investigation and comparison of spray characteristics of pressure-swirl atomizers for a small-sized aircraft turbine engine
(Elsevier, 2014-08-08)
The quality of liquid fuel atomization highly affects the formation of gaseous pollutants and particulate matter emissions from combustion processes. Spray characteristics of two geometrically different pressure-swirl ...
Energy considerations in spraying process of a spill-return pressure-swirl atomizer
(Elsevier, 2014-11-01)
The work focuses on energy conversion during the internal flow, discharge and formation of the spray from a pressure-swirl (PS) atomizer in the simplex as well as spill-return mode. Individual energy forms are described ...
Evaluation of Steadiness and Drop Size Distribution in Sprays Generated by Different Twin-Fluid Atomizers
(EDP Sciences, 2014-11-18)
Dvoumédiové trysky prodělaly značný vývoj v posledních desetiletích. Jsou běžné v mnoha průmyslových aplikacích jako rozprašování paliv, rozprašování tavenin a v potravinářství. Tento článek se soustředí na zhodnocení ...
Comparison of Y-jet and OIL effervescent atomizers based on internal and external two-phase flow characteristics
(EDP sciences, 2016-03-28)
Presented paper focuses on spraying of two viscous liquids ( = 60 and 143 mPa·s) by two types of twinfluid atomizers with internal mixing. We compared the well-known Y-jet atomizer with the less known, “outside in liquid” ...
Comparison of methods for flow border detection in images of smoke visualization
(EDP Sciences, 2016-03-28)
A separation of the flow region from the surroundings is an essential step in the analysis of smoke visualization images. The separation can be performed using several detection methods from the image segmentation group. ...
Air–liquid interactions in a pressure-swirl spray
(Elsevier, 2018-01-02)
The energy transfer between a liquid hollow cone spray and the surrounding air has been studied using both imaging and phase-Doppler techniques. The spray was produced by a pressure-swirl atomizer discharging Jet A-1 fuel ...