南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2014年
1期
78-81
,共4页
水体更新时间%宽浅型水库%流速场%EFDC%数值模拟
水體更新時間%寬淺型水庫%流速場%EFDC%數值模擬
수체경신시간%관천형수고%류속장%EFDC%수치모의
w ater renew al time%w ide-shallow reservoir%flow velocity field%EFDC%numerical simulation
水体中污染物的迁移、扩散与水体更新时间密切相关。基于 EFDC 建立了宽浅型水库水动力三维数学模型，并用水库实测资料对模型精确性进行了验证。首先利用验证后的数学模型模拟了宽浅型水库365 d 流速场和水体更新时间，得到了其水动力特性；然后模拟了无风工况下的水体更新时间，通过对比得到了风对宽浅型水库水体更新时间的影响。研究成果可为宽浅型水库的生态调度提供理论依据。
水體中汙染物的遷移、擴散與水體更新時間密切相關。基于 EFDC 建立瞭寬淺型水庫水動力三維數學模型，併用水庫實測資料對模型精確性進行瞭驗證。首先利用驗證後的數學模型模擬瞭寬淺型水庫365 d 流速場和水體更新時間，得到瞭其水動力特性；然後模擬瞭無風工況下的水體更新時間，通過對比得到瞭風對寬淺型水庫水體更新時間的影響。研究成果可為寬淺型水庫的生態調度提供理論依據。
수체중오염물적천이、확산여수체경신시간밀절상관。기우 EFDC 건립료관천형수고수동력삼유수학모형，병용수고실측자료대모형정학성진행료험증。수선이용험증후적수학모형모의료관천형수고365 d 류속장화수체경신시간，득도료기수동력특성；연후모의료무풍공황하적수체경신시간，통과대비득도료풍대관천형수고수체경신시간적영향。연구성과가위관천형수고적생태조도제공이론의거。
The transportat ion and diffusion ofpollutants in w ater body are closely related to the w ater renew al time, so knowl-edge ofthe water renew al time ofreservoir is useful for understanding the temporal and spatial distribution ofpollutants. In t his paper, a three-dimensional numerical model ofhydrodynamics in the w ide-shal ow reservoir was developed based on EFDC, and then the model w as validated using the field data. First, t he validated model was used t o simulat e the flow velocit y field at 365 days and w ater renew al time ofw ide-shallow reservoir in order t o obtain the hydrodynam ics characteristics. Then, the water re-newal time ofreservoir was simulated under the conditions ofno w ind in order to obt ain the impact s ofw ind on the w ater re-newal time ofwide-shal ow reservoir. The results can provide theoretical reference for the ecological regulation ofwide-shal ow reservoir.
