Yield stress dependency on the evolution of bubble populations generated in consolidated soft sediments
Retention of hydrogen bubbles within consolidated soft sediments represents an important safety consideration for the management of legacy nuclear wastes due to the potential for acute gas release. Gas retention sufficiently reduced the bulk density of intermediate yield stress (
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| Veröffentlicht in: | AIChE journal 2017-09, Vol.63 (9), p.3728-3742 |
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| container_issue | 9 |
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| container_title | AIChE journal |
| container_volume | 63 |
| creator | Johnson, Michael Fairweather, Michael Harbottle, David Hunter, Timothy N. Peakall, Jeffrey Biggs, Simon |
| description | Retention of hydrogen bubbles within consolidated soft sediments represents an important safety consideration for the management of legacy nuclear wastes due to the potential for acute gas release. Gas retention sufficiently reduced the bulk density of intermediate yield stress ( |
| doi_str_mv | 10.1002/aic.15731 |
| format | Article |
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American Institute of Chemical Engineers
AIChE J
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American Institute of Chemical Engineers
AIChE J
, 63: 3728–3742, 2017</description><subject>Bubbles</subject><subject>Bulk density</subject><subject>Buoyancy</subject><subject>Computed tomography</subject><subject>Consolidation</subject><subject>Gas transport</subject><subject>Nuclear engineering</subject><subject>Nuclear safety</subject><subject>Populations</subject><subject>Radioactive wastes</subject><subject>Residential density</subject><subject>Retention</subject><subject>Safety management</subject><subject>Sediments</subject><subject>Steady state</subject><subject>Void fraction</subject><subject>Yield</subject><subject>Yield strength</subject><subject>Yield stress</subject><issn>0001-1541</issn><issn>1547-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNotkMtOwzAQRS0EEqGw4A8ssWKR4kccJ0tU8ZIqsYEFq8iPcUmVxsF2kPr3uC2rmXN0NSNdhG4pWVJC2IPqzZIKyekZKqioZClaIs5RQQihZRb0El3FuM3EZMMKtPnqYbA4pgAxYgsTjBZGs8d-xOkbMPz6YU59Ju-wnrUeAE9-mgd1kBFvYISgEljcj9hk44feHjl6l3AE2-9gTPEaXTg1RLj5nwv0-fz0sXot1-8vb6vHdWk4a1PZAnc1Y1SK2uqK1NJJwmutagNSVxasVEaoWllRCQ2qpY0QrDHO5KXVXPEFujvdnYL_mSGmbuvnMOaXHW2ZELSpKMmp-1PKBB9jANdNod-psO8o6Q49drnH7tgj_wOvqmeF</recordid><startdate>20170901</startdate><enddate>20170901</enddate><creator>Johnson, Michael</creator><creator>Fairweather, Michael</creator><creator>Harbottle, David</creator><creator>Hunter, Timothy N.</creator><creator>Peakall, Jeffrey</creator><creator>Biggs, Simon</creator><general>American Institute of Chemical Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7U5</scope><scope>8FD</scope><scope>C1K</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0003-2124-3717</orcidid></search><sort><creationdate>20170901</creationdate><title>Yield stress dependency on the evolution of bubble populations generated in consolidated soft sediments</title><author>Johnson, Michael ; Fairweather, Michael ; Harbottle, David ; Hunter, Timothy N. ; Peakall, Jeffrey ; Biggs, Simon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c329t-9e3f6221756db4067f7036ba6ce7b4ded7ac5a6ad545bea9185528cfc1859b3a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Bubbles</topic><topic>Bulk density</topic><topic>Buoyancy</topic><topic>Computed tomography</topic><topic>Consolidation</topic><topic>Gas transport</topic><topic>Nuclear engineering</topic><topic>Nuclear safety</topic><topic>Populations</topic><topic>Radioactive wastes</topic><topic>Residential density</topic><topic>Retention</topic><topic>Safety management</topic><topic>Sediments</topic><topic>Steady state</topic><topic>Void fraction</topic><topic>Yield</topic><topic>Yield strength</topic><topic>Yield stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Johnson, Michael</creatorcontrib><creatorcontrib>Fairweather, Michael</creatorcontrib><creatorcontrib>Harbottle, David</creatorcontrib><creatorcontrib>Hunter, Timothy N.</creatorcontrib><creatorcontrib>Peakall, Jeffrey</creatorcontrib><creatorcontrib>Biggs, Simon</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>AIChE journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Johnson, Michael</au><au>Fairweather, Michael</au><au>Harbottle, David</au><au>Hunter, Timothy N.</au><au>Peakall, Jeffrey</au><au>Biggs, Simon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Yield stress dependency on the evolution of bubble populations generated in consolidated soft sediments</atitle><jtitle>AIChE journal</jtitle><date>2017-09-01</date><risdate>2017</risdate><volume>63</volume><issue>9</issue><spage>3728</spage><epage>3742</epage><pages>3728-3742</pages><issn>0001-1541</issn><eissn>1547-5905</eissn><abstract>Retention of hydrogen bubbles within consolidated soft sediments represents an important safety consideration for the management of legacy nuclear wastes due to the potential for acute gas release. Gas retention sufficiently reduced the bulk density of intermediate yield stress (<800 Pa) sediments for the bed to become buoyant with respect to an aqueous supernatant, potentially inducing Rayleigh‐Taylor instabilities. X‐ray computed tomography revealed that beds of 7–234 Pa yield stress retained very similar, steady state size distributions of mature bubbles, limited to 9 mm equivalent spherical diameter, for long residence times. This implied a dominant gas release mechanism dictated by the pore to millimeter scale bubble population, not previously identified in such weak sediments and unrelated to the bubbles' buoyant force. At 1112 Pa yield stress, large bubbles of up to 20 mm diameter were observed to grow through induction of lateral cracks, facilitating gas transport to the bed periphery, thereby limiting the maximum void fraction, while non‐homogeneous gas generation promoted the formation of low density regions rich with microbubbles which similarly provide pathways for gas release. © 2017 The Authors AIChE Journal published by Wiley Periodicals, Inc. on behalf of
American Institute of Chemical Engineers
AIChE J
, 63: 3728–3742, 2017</abstract><cop>New York</cop><pub>American Institute of Chemical Engineers</pub><doi>10.1002/aic.15731</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-2124-3717</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Bubbles Bulk density Buoyancy Computed tomography Consolidation Gas transport Nuclear engineering Nuclear safety Populations Radioactive wastes Residential density Retention Safety management Sediments Steady state Void fraction Yield Yield strength Yield stress |
| title | Yield stress dependency on the evolution of bubble populations generated in consolidated soft sediments |
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