The Relation between the High Speed Submerged Cavitating Jet Behavior and the Cavitation Erosion Process
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Tartalom: http://real.mtak.hu/41374/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published



Type = Article
Cím:
The Relation between the High Speed Submerged Cavitating Jet Behavior and the Cavitation Erosion Process
Létrehozó:
Hutli, Ezddin
Nedeljkovic, Milos
Radovic, Nenad
Bonyar, Attila
Kiadó:
Elsevier
Dátum:
2016-03-11
Téma:
T2 Technology (General) / műszaki tudományok általában
TJ Mechanical engineering and machinery / gépészmérnöki tudományok
TK Electrical engineering. Electronics Nuclear engineering / elektrotechnika, elektronika, atomtechnika
Tartalmi leírás:
In order to accurately and reliably evaluate the cavitation erosion resistance of materials using
a
cavitating jet generator,
the effects of the hydrodynamic parameters and the nozzle geometry on the erosion
process
were investigated.
Since
the
behavi
our
of
a
high speed submerged cavitating jet is
also depending
on the
working conditions;
their
influence is
also
discussed based on
the
evaluation of cavitation erosion process
.
The
erosion rate was used as an indic
a
tor for cavitating
jet behaviour
.
Speci
mens of
commercial
-
purity copper were subjected to high
speed
submerged cavitating jets under
different initial conditions, for certain time periods. The force generated by jet cavitation is employed to initiate the
erosion in surface. The tested specimens
were investigated with a
digital optical microscope and
a
p
rofilometer
.
It was
found that
erosion becomes more pronounced
with decreas
ing
cavitation number
s
,
as well as with increas
ing
exit jet
velocit
ies
.
The n
ozzle
configuration
and hydrodynamic param
eters have strong influence
s
on
the
erosion rate
,
eroded
area
and depth of erosion
.
A comparison
between
the
obtained results
explains
some of the mechanisms involved in
cavitation and erosion
p
rocesses
and their relation
to
the
tested parameters
.
Mathemat
ical expressions
which combine
these parameters with the erosion rate are obtained
.
These parameters are very important
in order to control
the
cavitation as
a
phenomenon
and
also to control
the performance of
the
cavita
ting jet
generator
.
Nyelv:
angol
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Hutli, Ezddin and Nedeljkovic, Milos and Radovic, Nenad and Bonyar, Attila (2016) The Relation between the High Speed Submerged Cavitating Jet Behavior and the Cavitation Erosion Process. International Journal of Multiphase Flow, 83. pp. 27-38. ISSN 0301-9322
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