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頁籤選單縮合
題名 | 養殖池溫度變異模擬= |
---|---|
作者 | 林尚祺; 廖中明; |
期刊 | 國立臺灣大學農學院研究報告 |
出版日期 | 19940900 |
卷期 | 34:3 1994.09[民83.09] |
頁次 | 頁273-293 |
分類號 | 439.6 |
語文 | chi |
關鍵詞 | 養殖池; 溫度變異; 熱分層; Aquaculture pond; Temperature variation; Thermal stratification; |
中文摘要 | 利用不連續、完全混合之水平容積團塊假設發展出養殖池水溫之垂直分 佈的數學模式。水注中的熱傳遞則是利用紊流擴散與溫度梯度來推導。於民國八 十二年九月八日至九月十五日進行虱目魚池現場24小時之實測,實測資料包括氣 候因子及不同深度的水溫。利用四階Runge-Kutta法求出的數值解與實測值之模式 驗證結果吻合(上層水溫誤差值大約為±0.5℃,下層則約為±1.5℃)。本模式可適 用於一般養殖池。 |
英文摘要 | A mathematical model to describe the vertical temperaturedistributions in shallow aquaculture ponds is presented based upon adiscrete, completely mixed, and hori-ontal volume lumps assumptions.Energy transfer between volume lumps is derived via the turbulentmixing and the temperature gradient. A field measurement isimplemented in a milk fish pond during September 8-15, 1993.Measurements included various meteorological factors (solarirradiance, air temperature, relative humidity and wind velocity) andwater temperatures at different pond depths in which 24 hrsvariations were analyzed. The responses from the model solved bythe 4th-order Rnnge-Kutter are found to compare favorably with thatfrom field measured results (the errors of upper volume lumps are ±0.5℃, while±1.5℃ for lower volume lumps). |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。