頁籤選單縮合
| 題 名 | 微藥量下爆炸氣泡試驗=The Test of Underwater Explosion Bubble Generated by Few Grams Explosive |
|---|---|
| 作 者 | 洪勝治; 皇甫敬嘉; | 書刊名 | 火藥技術 |
| 卷 期 | 15:2 1999.09[民88.09] |
| 頁 次 | 頁53-65 |
| 分類號 | 462.11 |
| 關鍵詞 | 水下爆炸; 氣泡; Underwater explosion; Bubble; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 水下爆炸氣泡現象是爆炸生成物與水複雜互動的結果;當爆炸發生後,生成物以 氣泡的形式脹縮振動,且因氣泡表面壓力不平衡,在收縮至最小時,出現噴流現象;若附近 若附近有障礙物,則壓力不平衡的影響更大,障礙物將受到氣泡崩潰產生的壓力;此一壓力 的大小雖不及爆炸主震波,但歷時卻遠比主震波長,因此其衝量(Impulse)與能量通量密度 (Energy flux density)較大,具有相當的破壞威力,使氣泡現象在水動力機械空蝕 (Cavitation)現象與水下武器的研究上有重要地位。本文以試驗觀察分析微藥量水下爆炸氣 泡現象,並作定性研究,以瞭解氣泡的特性。 |
| 英文摘要 | The bubble phenomenon of underwater explosion is a result of complex interaction between water and detonation product. After detonation, the detonation product expands and contracts in form of bubble. Because the pressure unbalances on bubble surface, a jet will form when bubble contracts to minimum. If there were a nearby obstacle, the influence of unbalance pressure will be greater, the obstacle will accept a pressure when bubble collapse. The amplitude of this pressure is not as great as the primary shock of detonation, but the period is much longer. As a result, impulse and energy flux density will bigger, and cause greater damage. This damage capability makes bubble phenomenon important in the study of hydraulic machine cavitation and underwater weapon. By analyzing the test data of underwater explosiono bubble, this article tries to study the bubble phenomenon qualitatively. |
本系統中英文摘要資訊取自各篇刊載內容。