Download or read book Theoretical Study of Noble Gas Bubble Behavior in Mercury written by and published by . This book was released on 2006 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spallation Neutron Source (SNS) uses heavy liquid metal (mercury) as the target material or high power proton beam bombardment to produce neutrons for scientific research. Though the liquid target is not subject to material degradation due to radiation damage, the stainless steel pressure boundary confining the liquid metal flow is damaged by radiation and cavitation erosion induced by the thermal shock waves caused by the deposition of the incoming high-power proton beam. This puts a limit on the lifetime of the target holder. To mitigate the cavitation-induced erosion damage to the target holder, it is aimed to introduce microbubbles to the target mercury with expected nominal size of 30 [mu] m diameter and volume fraction of 0.5%, which can substantially lower the pressure amplitude resulting from the proton beam deposition due to the added compressibility. The noble gas bubble behavior in mercury is studied in this thesis. The acoustics of the two-phase mixture under the perturbation due to beam deposition, specifically acoustic streaming, is simulated in a bubbly two-phase flow for the first time in the literature. The numerical simulation shows the magnitude of obtained streaming velocity is much smaller than the pumped mercury flow in the target and will not cause distortion to flow patterns and heat transfer in the target. Single bubble dynamics, which includes noble gas solubility evaluation in mercury and the bubble radius evolution under the effect of mass diffusion across the bubble wall, is also simulated. Two different profiles of bubble size distribution are studied. The solubility evaluation provides a theoretical basis for the inert gas solubility measurement experiments. The mass diffusion induced bubble behavior simulation based on the solubility results indicates that xenon bubbles creates a more viable and stable bubble population in mercury than helium bubbles, which means xenon is a possible better candidate to add compressibility to pure mercury in the SNS target.

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1964 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Plasma Physics Index written by and published by . This book was released on 1981 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.

Download or read book Glass Technology written by and published by . This book was released on 1960 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1971 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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