問題詳情
三、試繪圖說明下列勢流（Potential flows）流線函數（ψ, Stream function）之流線（Stream lines）。下列五小題中，（r, θ）及（x, y）分別為極坐標及直角坐標之坐標變數，其他符號皆為大於零（>0）之物理參數。（每小題 5 分，共 25 分）
(一)ψ=2r2 sin2θ
(一)ψ=2r2 sin2θ
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