浙江近岸大浪的准确定性理论适用性研究  

APPLICABILITY STUDY OF QUASI-DETERMINISM THEORY OF LARGE WAVES NEAR ZHEJIANG COAST

作　　者：蔡丽 赵建春 梁炳贤 孙昭晨[2] Cai Li;Zhao Jianchun;Liang Bingxian;Sun Zhaochen(Power China Huadong Engineering Corporation Limited,Hangzhou 310014,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,杭州310014 [2]大连理工大学海岸和近海工程国家重点实验室,大连116024

出　　处：《太阳能学报》2024年第12期503-508,共6页Acta Energiae Solaris Sinica

摘　　要：大波波形的准确刻画对波浪能发电装置的效率及载荷计算具有重要意义,基于条件概率的准确定性理论具有描述平均大波的波形的潜能。基于2018年台风“安比”过境时浙江温岭近岸海域实测的持续3 d的波浪数据,通过自编程序计算实测平均大波波形与准确定性理论值,进而分析讨论准确定性理论在该算例的适用性。结果表明:总体而言计算精度良好;海况的谱尖度越大(谱越窄),准确定性理论计算的平均大波波形越精确,相关性系数达到-0.56;海况的波陡值与准确定性理论的计算精度相关系数为0.36;海况的高斯性与准确定性理论的计算精度并无很强的关联性。Accurate characterization of the large wave shapes is vital for efficiency and load calculations of wave energy converters.Meanwhile,conditional probability-based quasi-determinism theory offers a way to access it.Using 3-day wave measurement data collected offshore of Wenling,Zhejiang Province during Typhoon Ampil′s transit in 2018,the measured average shapes of large waves and corresponding quasi-determinism waves are calculated by a self-programmed code.Then,the applicability of quasi-determinism theory for accurately characterizing these large wave shapes is discussed.The results show that the overall accuracy of the calculation is good;the larger the spectral peakedness of the spectrum(the narrower the spectrum),the higher accuracy of the quasi-determinism theory,and the correlation coefficient reaches-0.56;the correlation coefficient between wave steepness and quasi-determinism theory accuracy is 0.36;the Gaussianity of the sea state has no substantial relationship with quasi-determinism theory accuracy.

关 键 词：波浪能 准确定性理论 平均大波波形 谱宽 波陡 高斯性 

分 类 号：TV139.2[水利工程—水力学及河流动力学]