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研究所、轉學考(插大)-流體力學
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101年 - 101 淡江大學 轉學考 流體力學#53233
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4. In a 2-D incompressible flow, the velocity is given as V = (y
3
/3 + 2x - x
2
y)
i
+ (xy
2
- 2y - x
2
/3)
j
Please check whether this flow field represents an irrotationai flow. (20%)
其他申論題
(c )請說明streamline與pathline的異同
#194634
(d)請問Bernoulli’s方程式在何種流場條件下方可使用？
#194635
2. The equation of the stream function for a 2-D flow is given by (x2/2) + xy = C where C is a constant. Determine the velocity of a fluid particle at point (2，3). (20%)
#194636
3. In a 2-D incompressible flow, the x component of velocity is given by u = 3x2 -y. On the x-axis, the y-component of velocity is given by v = 2/x. Please find the expression for v. (20%)
#194637
5. For a 2-D incompressible flow with velocity potential □ given as □ = x2 - 2y2 . Please find the pressure difference between (3，2) and (5,-1). (20%)
#194639
【已刪除】(10%)考慮圖一的電路，求電壓Vx。
#194640
【已刪除】2. (20%)考慮圖二的電路，求a-b兩端間的戴維寧等效電路(Thevenin's equivalent circuit)。
#194641
【已刪除】3. (20%)考慮圖三的理想放大器電路，求電流io。
#194642
【已刪除】4. (20%)考慮圖四的電路，假設開關已於閉合，且於t=0時打開，求電流z•⑴，f ＞ 0。
#194643
【已刪除】5.(20%)考慮圖五的交流電路，求電流IO。
#194644
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