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題名 | 以光滑粒子流體動力法模擬探討水波動態演進=Simulations on the Dynamic Evolutions of Water Free Surfaces by Using Smoothed Particle Hydrodynamics |
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作者 | 許挣強; | 書刊名 | 航空技術學院學報 |
卷期 | 10:1 2011.08[民100.08] |
頁次 | 頁149-155 |
分類號 | 440.137 |
關鍵詞 | 光滑粒子流體動力法; 水面波; 重力波; 衝擊; Smoothed particle hydrodynamics; Free surface; Gravity wave; Sloshing; |
語文 | 中文(Chinese) |
中文摘要 | 本文以光滑粒子流體動力法模擬探討不同情形下水波之生成及演進,詳細的固定及移動固體邊界數值處理方式被提出。水壩崩潰、重力擠壓作用、動板推擠、及艙體搖晃等作用下,詳細之水面波動態變化均被詳細模擬。波浪沖擊斜坡產生波浪翻湧之現象亦被模擬出。發現區域重力擠壓作用於重力施加兩側會個別產生一個等大小以等速往兩邊運動之水波;動板擠壓會提升水位,隨後產生一個往擠壓方向行進的湧波;水平晃蕩的非全滿艙體,在晃蕩過程中,壁面擠壓流體為水面波產生之主要機制,不同行進方向水面波互相衝擊造成水面震盪。 |
英文摘要 | Smoothed particle hydrodynamics was used to simulate the evolutions of free surfaces of water at various conditions. Especially, numerical techniques for treating the fixed and moving solid boundaries were carefully studied. The evolutions of Dam-break, wave-generation under gravity effect, wave generated by pushed-plate, sloshing waves impacting were successfully simulated. The local unbalance of gravity force on water surface causes the generation of propagating gravity waves. The squeezing effects of moving plate on water increasing the height of water near the plate and then a propagating gravity wave is generated. Sloshing in rectangular tank is controlled by the mechanism of waves introduced by moving plate. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。