大连理工大学学报
大連理工大學學報
대련리공대학학보
JOURNAL OF DALIAN UNIVERSITY OF TECHNOLOGY
2009年
6期
951-957
,共7页
孙一艳%柳淑学%臧军%李金宣
孫一豔%柳淑學%臧軍%李金宣
손일염%류숙학%장군%리금선
聚焦波%谐波%非线性
聚焦波%諧波%非線性
취초파%해파%비선성
focused waves%harmonic waves%non-linearity
为更好地模拟波浪的非线性变化过程,给出了在实验室水槽中采用波浪聚焦产生极限波浪的方法.针对聚焦波浪的特点,采用波峰聚焦和波谷聚焦相加减的方法分析了其谐波分量的特性,结果表明,波浪之问的相互作用,导致低频和高频谐波分量的产生;非线性波浪随着输入波幅的增大而增大,高阶分量的频率范围随着输入频率范围的增大而增大.
為更好地模擬波浪的非線性變化過程,給齣瞭在實驗室水槽中採用波浪聚焦產生極限波浪的方法.針對聚焦波浪的特點,採用波峰聚焦和波穀聚焦相加減的方法分析瞭其諧波分量的特性,結果錶明,波浪之問的相互作用,導緻低頻和高頻諧波分量的產生;非線性波浪隨著輸入波幅的增大而增大,高階分量的頻率範圍隨著輸入頻率範圍的增大而增大.
위경호지모의파랑적비선성변화과정,급출료재실험실수조중채용파랑취초산생겁한파랑적방법.침대취초파랑적특점,채용파봉취초화파곡취초상가감적방법분석료기해파분량적특성,결과표명,파랑지문적상호작용,도치저빈화고빈해파분량적산생;비선성파랑수착수입파폭적증대이증대,고계분량적빈솔범위수착수입빈솔범위적증대이증대.
A method to generate a large transient wave through the focusing of the component waves in experiment flume is described. It can well represent the nonlinear transformation of waves. For the characteristics of focused waves, a method of the addition and subtraction of the wave crest and wave trough focusing is introduced, and the speciality of the harmonic waves is analyzed. The results show that the lower and higher harmonics can be generated because of the interaction of the component waves. The nonlinear waves increase with the incident wave amplitude and the frequency width.