Article(id=1223204292006363192, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221468, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1657987200000, receivedDateStr=2022-07-17, revisedDate=1660838400000, revisedDateStr=2022-08-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564229251, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564229251, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564229251, creator=13701087609, updateTime=1769564229251, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=55, endPage=58, ext={EN=ArticleExt(id=1223204293633753172, articleId=1223204292006363192, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Calculation and Analysis of Mass Transfer Coefficient of Aeration to Supersaturated Total Dissolved Gas, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

The supersaturated total dissolved gas (TDG) is mainly caused by the discharge of high dam spillway, excess oxygen production of plant photosynthesis and sharp increase in water temperature, which may directly lead to fish and aquatic organisms suffering from gas bubble disease (GBD) or even death. In order to explore the measures to mitigate the adverse effects of supersaturated TDG, under different aeration conditions, the swirl mixing aeration mode has an obvious effect on the release of supersaturated TDG, its effect is slightly stronger than that of pinhole aeration method, and the aeration rate has the greatest impact on the mass transfer coefficient of supersaturated TDG, followed by the aeration depth, and the aeration diameter is the smallest. The relationship between supersaturated TDG mass transfer coefficient and aeration rate, aeration diameter and aeration depth is obtained, respectively. The average error is within ±6.25%. The research results provide a data basis for mitigating the adverse effects of supersaturated TDG.

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过饱和总溶解气体(TDG)主要由高坝溢洪道泄流、植物光合作用产氧过剩和水温剧增等方式引起,这可能直接导致鱼类和水生生物患有“气泡病”(GBD)甚至死亡。为探索减缓过饱和TDG不利影响的措施,采用两种类型的漩混曝气盘对过饱和TDG释放进行试验。结果表明,在不同曝气条件下,漩混曝气方式对过饱和TDG释放有明显的促进作用,其作用效果略强于针孔曝气方式,且曝气速率对过饱和TDG传质系数影响最大,曝气深度次之,曝气直径最小,并获得了过饱和TDG传质系数与曝气速率、曝气直径和曝气深度的关系式,且其误差平均在±6.25%以内。研究结果为减缓过饱和TDG的不利影响提供了数据基础。

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杨慧霞(1983-),女,博士、副教授,研究方向为环境水力学及河流动力学,E-mail:
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姚元波(1997-),男,硕士研究生,研究方向为水文及水资源,E-mail:

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姚元波(1997-),男,硕士研究生,研究方向为水文及水资源,E-mail:

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姚元波(1997-),男,硕士研究生,研究方向为水文及水资源,E-mail:

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曝气对过饱和总溶解气体传质系数计算与分析研究
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姚元波 , 杨慧霞 , 王云云 , 刘彩红 , 梁珈珈
水电能源科学 | 水文水资源与环境 2023,41(5): 55-58
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水电能源科学 | 水文水资源与环境 2023, 41(5): 55-58
曝气对过饱和总溶解气体传质系数计算与分析研究
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姚元波 , 杨慧霞 , 王云云, 刘彩红, 梁珈珈
作者信息
  • 贵州大学土木工程学院,贵州 贵阳 550025
  • 姚元波(1997-),男,硕士研究生,研究方向为水文及水资源,E-mail:

通讯作者:

杨慧霞(1983-),女,博士、副教授,研究方向为环境水力学及河流动力学,E-mail:
Calculation and Analysis of Mass Transfer Coefficient of Aeration to Supersaturated Total Dissolved Gas
Yuan-bo YAO , Hui-xia YANG , Yun-yun WANG, Cai-hong LIU, Jia-jia LIANG
Affiliations
  • College of Civil Engineering, Guizhou University, Guiyang 550025, China
出版时间: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20221468
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过饱和总溶解气体(TDG)主要由高坝溢洪道泄流、植物光合作用产氧过剩和水温剧增等方式引起,这可能直接导致鱼类和水生生物患有“气泡病”(GBD)甚至死亡。为探索减缓过饱和TDG不利影响的措施,采用两种类型的漩混曝气盘对过饱和TDG释放进行试验。结果表明,在不同曝气条件下,漩混曝气方式对过饱和TDG释放有明显的促进作用,其作用效果略强于针孔曝气方式,且曝气速率对过饱和TDG传质系数影响最大,曝气深度次之,曝气直径最小,并获得了过饱和TDG传质系数与曝气速率、曝气直径和曝气深度的关系式,且其误差平均在±6.25%以内。研究结果为减缓过饱和TDG的不利影响提供了数据基础。

曝气  /  过饱和TDG  /  曝气速率  /  曝气直径  /  曝气深度  /  传质系数

The supersaturated total dissolved gas (TDG) is mainly caused by the discharge of high dam spillway, excess oxygen production of plant photosynthesis and sharp increase in water temperature, which may directly lead to fish and aquatic organisms suffering from gas bubble disease (GBD) or even death. In order to explore the measures to mitigate the adverse effects of supersaturated TDG, under different aeration conditions, the swirl mixing aeration mode has an obvious effect on the release of supersaturated TDG, its effect is slightly stronger than that of pinhole aeration method, and the aeration rate has the greatest impact on the mass transfer coefficient of supersaturated TDG, followed by the aeration depth, and the aeration diameter is the smallest. The relationship between supersaturated TDG mass transfer coefficient and aeration rate, aeration diameter and aeration depth is obtained, respectively. The average error is within ±6.25%. The research results provide a data basis for mitigating the adverse effects of supersaturated TDG.

aeration  /  supersaturated TDG  /  aeration rate  /  aeration diameter  /  aeration depth  /  mass transfer coefficient
姚元波, 杨慧霞, 王云云, 刘彩红, 梁珈珈. 曝气对过饱和总溶解气体传质系数计算与分析研究. 水电能源科学, 2023 , 41 (5) : 55 -58 . DOI: 10.20040/j.cnki.1000-7709.2023.20221468
Yuan-bo YAO, Hui-xia YANG, Yun-yun WANG, Cai-hong LIU, Jia-jia LIANG. Calculation and Analysis of Mass Transfer Coefficient of Aeration to Supersaturated Total Dissolved Gas[J]. Water Resources and Power, 2023 , 41 (5) : 55 -58 . DOI: 10.20040/j.cnki.1000-7709.2023.20221468
  • 国家自然科学基金项目(51709053)
  • 贵州省科技基金项目(QKHJ-2019-1117)
2023年第41卷第5期
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doi: 10.20040/j.cnki.1000-7709.2023.20221468
  • 接收时间:2022-07-17
  • 首发时间:2026-01-28
  • 出版时间:2023-05-25
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出版历史
  • 收稿日期:2022-07-17
  • 修回日期:2022-08-19
基金
国家自然科学基金项目(51709053)
贵州省科技基金项目(QKHJ-2019-1117)
作者信息
    贵州大学土木工程学院,贵州 贵阳 550025

通讯作者:

杨慧霞(1983-),女,博士、副教授,研究方向为环境水力学及河流动力学,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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