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頁籤選單縮合
題名 | 肥皂膜震波實驗之研究=The Experiment of Shock Wave Study |
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作者姓名(中文) | 溫志湧; 張簡相國; | 書刊名 | 力學 |
卷期 | 16:1 2000.06[民89.06] |
頁次 | 頁51-59 |
分類號 | 440.133 |
關鍵詞 | 肥皂膜流; 水躍現象; 肥皂膜震波管; 震波; Shock waves; Line scan CCD camera; High-speed flash; Photography; Analogy; |
語文 | 中文(Chinese) |
中文摘要 | 此實驗的動機乃是在過去實驗和理論上發現肥�善互y中有類似水躍(Hydraulic Jump) 的現象,倘能由實驗來驗證肥�善互y中亦能產生和氣體動力學相同之物理現象,將來 必可開發一低成本的 " 肥�善冗_波管 " 來替代昂貴之 " 氣體震波管 ", 在教學與學術研 究方面頗有重大價值。 本文將進行 (1) 肥�善互y中的三個可壓縮流實驗:行進震波、二維 斜震波與超音速流經圓柱實驗,經由流場可視化的實驗結果發現和氣體流場有相同之物理現 象。(2) 肥�善井p度之量測,找出肥�善中屁_波前、後的厚度,實驗結果發現在震波的馬赫 數對震波後、前之膜厚比的曲線圖 (M �� - δ�� / δ�� ),約等於比熱比γ =3.3 的二維 氣體。經由以上兩個實驗可證明 " 肥�善冗_波管 " 之可行性。 |
英文摘要 | The bursting of plane vertical soap films has been studied by means of the high-speed flash photography and a new imaging technique of using a line CCD camera. An aureole and a "shock wave" preceding the rim of the expanding hole has been clearly observed. The analogy between thickness jumps in the soap films and shock waves in gases are the investigated. Photographs of supersonic flow over blunt bodies are also presented. The results suggest the feasibility of the "soap film shock tube". |
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