河海大学学报(自然科学版)
河海大學學報(自然科學版)
하해대학학보(자연과학판)
JOURNAL OF HOHAI UNIVERSITY (NATURAL SCIENCES)
2015年
1期
85-89
,共5页
屈子云%魏岗%杜辉%靖树一%王欣隆
屈子雲%魏崗%杜輝%靖樹一%王訢隆
굴자운%위강%두휘%정수일%왕흔륭
分层流%台阶地形%内孤立波变化特征%水槽试验%分层染色标识法%多点组合探头阵技术
分層流%檯階地形%內孤立波變化特徵%水槽試驗%分層染色標識法%多點組閤探頭陣技術
분층류%태계지형%내고립파변화특정%수조시험%분층염색표식법%다점조합탐두진기술
stratified fluid%step topography%change characteristics of internal solitary wave%tank experiment%layered dye-injection techniques%multi-point combined conductivity-probe arrays
通过大型分层流水槽中下凹型内孤立波沿台阶地形演化的试验模拟,认识我国南海东北部内孤立波沿海底突变地形传播的规律。利用分层染色标识法显示内孤立波与台阶地形作用过程中的特征变化,采用多点组合探头阵技术对其结构进行定量测量。研究表明:突变地形作用导致内孤立波波幅在台阶附近显著增加,使内孤立波波形变陡并出现尾部波列和极性转换等现象。
通過大型分層流水槽中下凹型內孤立波沿檯階地形縯化的試驗模擬,認識我國南海東北部內孤立波沿海底突變地形傳播的規律。利用分層染色標識法顯示內孤立波與檯階地形作用過程中的特徵變化,採用多點組閤探頭陣技術對其結構進行定量測量。研究錶明:突變地形作用導緻內孤立波波幅在檯階附近顯著增加,使內孤立波波形變陡併齣現尾部波列和極性轉換等現象。
통과대형분층류수조중하요형내고립파연태계지형연화적시험모의,인식아국남해동북부내고립파연해저돌변지형전파적규률。이용분층염색표식법현시내고립파여태계지형작용과정중적특정변화,채용다점조합탐두진기술대기결구진행정량측량。연구표명:돌변지형작용도치내고립파파폭재태계부근현저증가,사내고립파파형변두병출현미부파렬화겁성전환등현상。
Through laboratory experiments of the evolution of an internal solitary wave ( ISW ) of depression over step topography in a large stratified fluid tank, the propagating characteristics of the ISW along the mutation topography of the seabed of the South China Sea were studied. The process of the interaction of the ISW and the step topography was shown using layered dye-injection techniques and its structure was quantitatively measured with multi-point combined conductivity-probe arrays. The results show that mutation topography can lead to an amplitude increase of the ISW near the step and cause the waveform to steepen. Further, dynamic phenomena, such as the trail wave train and polarity reversal, are generated.