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頁籤選單縮合
題名 | Approximate Model for Predicting the Motion of Rotating Spheres=預測旋轉球體運動之近似模式 |
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作者 | 楊仁岡; 吳忠威; | 書刊名 | 嘉義農專學報 |
卷期 | 28 1992.02[民81.02] |
頁次 | 頁265-274 |
分類號 | 434.25 |
關鍵詞 | 旋轉; 球體運動; |
語文 | 英文(English) |
中文摘要 | 本文之目的在於提出一近似數學模式,此模式被實務工程師用以預測在 一環型區域內不可壓縮、牛頓、等溫流體在軸向旋轉作用下剛體球之角速度。此 一模式是十分便利的,其允許在任何輸入扭力下得到-解析型式之解。在本模式 中之有效牽曳及慣性係數對不同之半徑及慣性比值以無因次之形式表示。這些值 證明在低雷諾數(小於或等於10)時有效。 |
英文摘要 | The purpose of this paper is to present an approximate mathematicalmodel which can be employed by practising engineers to predict the angularvelocity of a rigid sphere which is undergoing axial spin in an incompressible,Newtonian, isothermal fluid contained in an annulus. The model is convenientin that it permits an analytical closed form solution for arbitrary input torques.The effective drag and inertia coefficients in the model are presented in dimensionless form for various values of the radius and inertia ratios. The valuesare shown to be valid for low Reynolds numbers (Re ≦ 10). |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。