頁籤選單縮合
題名 | An Experimental Study on the Deformation of the Net Cages=箱網變形的實驗研究 |
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作者姓名(中文) | 俞克儉; 呂學信; 周耀烋; | 書刊名 | 臺灣水產學會刊 |
卷期 | 26:4 1999.12[民88.12] |
頁次 | 頁213-223 |
分類號 | 439.2 |
關鍵詞 | 相對容積率; 容積變形率; 彈性空間; 穩定式箱網; Relative volume ratio; Volume deformation ratio; Elastic space; Stable net cage; |
語文 | 英文(English) |
中文摘要 | 本實驗是為了以防止箱網在大浪強流之衝下的網具變形,利用在箱網加上穩定索 來減低箱網變形率。 本實驗中,一個40 cm×40cm×32cm 之模型傳統箱網、新設計繫留索箱網及穩定 式箱網在模型水槽實驗,以四種沉子量分別繫於箱網之底部,在不同的流速及波高運作 下觀查網形之變化並計測箱網網內容積之變化,其結果如下;當流速為15cm/sec而無波 時,箱網之網內容積率從傳統箱網的31%提升至穩定式箱網之68%。當流強浪大時,箱 網之網內容積變形率從傳統箱網的90%降低至穩定式箱網之50%。 由於彈性空間之發揮,穩定式箱網有更大之箱網網內容簀,當流強浪大時,箱網內 飼養之魚類比傳統箱網有更大的生存空間。這實驗結果可促進發展抗浪形箱網以提高魚 類養殖生產量。 |
英文摘要 | Experiments were conducted on preventing deformation of net cage from waves and strong current by reducing the deformation rate through adding the stable rope in the net cage. In this study, a 40 cm × 40 cm × 32 cm traditiona net cage、 n new design mooring rope net cage and a stable net cage were used as models in a current-wave water tank. There were 4 knids of sinker weights fastened at the bottom of the net cage. The shape and volume of cage were determined and measured under different flow velocity (V) and wabe heights (H). The results are as follows: In case of V=15cm/sec and H=0(waveless condition), we can determine that the relative volume ratio of the traditional net cage (35%) raised to 68% of the stable net cage. The volume deformation ratio of the traditional net cage was 90%, reduced to 50% of a stable net cage during against strong waves and current. Due to the elastic space of a stable net cage creates the more inner volume of cage, the fishes reared in the cage had much more survival space then traditional net cage against strong waves and cureent. All this results will be used in the development of an anti-wave net cage for imcreasing the fish aquaculture production. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。