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Wyszukujesz frazę "anemometria obrazowa" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Application of PIV method to study the speed distribution of oil mist particles in the orthogonal cutting process
Autorzy:
Wójcik, R.
Stachurski, W.
Powiązania:
https://bibliotekanauki.pl/articles/95346.pdf
Data publikacji:
2017
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
orthogonal cutting
MQL
particle image velocimetry
PIV
cutting force
skrawanie ortogonalne
smarowanie minimalne
cyfrowa anemometria obrazowa
siła skrawania
Opis:
The paper presents the use of the PIV method in experimental studies on the speed distribution of oil particles contained in oil mist delivered into a cutting zone with minimum quantity (MQL). During investigations an orthogonal sample was of an aluminum alloy PA7N was machined using HS18-0-1 high-speed steel cutter. The oil mist was delivered into the cutting zone by a single spray nozzle directed at the tool rake surface. Two angular settings of the spray nozzle were applied in relation to the surface of the machined sample. Based on the images obtained by the PIV method, the distribution of the oil particles in the cutting area was determined according to the setting the spray nozzle. Studies have indicated more favorable conditions for the delivery of oil mist at the angle of spray nozzle at 85°. These conclusions were confirmed by measuring the cutting force in tangential direction to the machined surface.
Źródło:
Journal of Mechanical and Energy Engineering; 2017, 1, 1; 51-55
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of the flow pattern of liquid streams in the shell-side of a segmental-baffled shell-and-tube heat exchanger
Autorzy:
Ligus, G.
Zając, D.
Kołodziej, S.
Powiązania:
https://bibliotekanauki.pl/articles/95380.pdf
Data publikacji:
2018
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
PIV
particle image velocimetry
shell and tube heat exchanger
tube bundles
leakage stream
bypass stream
anemometria obrazowa
wymiennik płaszczowo-rurowy
wiązki rur
strumień wycieku
strumień obejściowy
Opis:
Shell-and-tube heat exchangers are widely used in chemical and process engineering. Assessing hydrodynamics of fluid flow in their shell-side is a highly complex task. This results from the complex geometry of the shell-side itself, defined by such parameters as the tubesheet layout, tube diameter, baffle spacing or baffle cut. Shell-and-tube heat exchangers are the subject of many studies in which design and flow parameters are analysed. However, only a few studies concentrate on issues strictly related to the identification of streams of the liquid flowing in the shell-side of apparatus on an industrial scale. In this article, the authors present the results of an experimental visualization study, utilizing Particle Image Velocimetry (PIV). The experiment used a laser sheet technique along and across a tube bundle. The main results of the measurements and analyses concentrate on identifying the flow pattern of streams in the shell-side and assessing stagnation vortices and their consequences. Finally, detecting bypass streams and leakage streams flowing through design gaps between the shell and the tube bundle as well as between the baffles and the tubes in the bundle are presented.
Źródło:
Journal of Mechanical and Energy Engineering; 2018, 2, 3; 245-256
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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