Rp. Taleyarkhan et F. Moraga, Static and transient cavitation threshold measurements for mercury with dissolved air and helium, NUCL ENG DE, 207(2), 2001, pp. 181-188
Cavitation onset in mercury is an important aspect affecting operation and
safety of accelerator-driven neutron source facilities employing mercury-fi
lled targets. Cavitation in such systems can occur in the bulk and at liqui
d-structure interfaces under a range of (oscillating pressure) frequencies.
Two different apparatus types were designed and utilized for obtaining pra
ctically relevant cavitation threshold data. Transient and static cavitatio
n thresholds of mercury as a function of the cover gas (helium or air), flu
id temperature and pressure are reported. Both static and transient cavitat
ion onset pressure thresholds were found to increase linearly with cover ga
s pressure. Additionally, the cavitation threshold as a function of dissolv
ed gases were also measured and found to vary significantly between air and
helium. Over the examined range, the effect of fluid temperature was found
to be small and within experimental error. (C) 2001 Elsevier Science S.A.
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