动态潮汐能大坝影响因素及坝型数值研究  

Numerical study of factors and layout on dynamic tidal power dam

作　　者：孙逸豪[1,2] 艾斯卡尔.吾休尔 陈永平[1,2] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]河海大学港口航道与近海工程学院,江苏南京210098 [3]新疆维吾尔自治区水利管理总站,新疆乌鲁木齐830000

出　　处：《可再生能源》2015年第4期625-631,共7页Renewable Energy Resources

基　　金：国家重点基础研究"973"计划项目(2010CB429001);水利部公益性行业科研专项经费项目(201201045)

摘　　要：动态潮汐能是一种新型的潮汐能,它利用开敞式的大坝阻断潮波的行进,在其两侧形成一定的水头差,从而产生潜在的可再生潮汐能。文章利用MIKE21水动力模块对动态潮汐能的工作方式及其影响因素进行了数值模拟研究,在概化的海峡内布置不同尺寸和类型的大坝,利用数学模型计算了不同大坝长度、海域水深、近岸坡度和潮波振幅等对动态潮汐能的影响;模拟比较了T型与Y型DTP坝可产生的最大水头差。研究表明:DTP坝两侧的最大水头差与坝干尺寸、水深-1/2次幂,及潮波振幅成正比关系;海床坡度的增加有助于增大DTP两侧的水头差;在相同水深和潮波条件下,45°的Y型坝可产生较大的发电水头。Dynamic tidal power（DTP）, a new type of tidal power, was generated by using a largescale dam to block the tidal propagation, so that the tidal elevation difference, which could be exploited as renewable energy, was artificially formed along the two sides of the dam.By application of MIKE21 flow model FM,this paper aims to investigate the working principle and influence factors of the DTP dam. The different type and size of DTP dam were constructed in a generalized strait to study the influence factors,including the length and shape of the dam, the water depth, the offshore slope and the tidal amplitude,on the maximum elevation difference. The results showed that the maximum elevation difference was proportional to the length of main dam, the reciprocal square root of water depth and the tidal amplitude.The steeper slope was the larger maximum elevation difference will be.Based on the numerical experiments,it was found that the potential energy amount of Y-type dam with 45 ° was larger.

关 键 词：二维潮波模型 动态潮汐能 DTP大坝 

分 类 号：TK6[动力工程及工程热物理—生物能] TQ546[化学工程—煤化学工程]