110年 - 110 國立清華大學碩士班考試入學試題_工程與系統科學系/乙組:流體力學#104987

科目：研究所、轉學考(插大)-流體力學 | 年份：110年 | 選擇題數：0 | 申論題數：11

試卷資訊

所屬科目：研究所、轉學考(插大)-流體力學

選擇題 (0)

申論題 (11)

1.解釋名詞(25%) (1)Largrangian Method and Eulerian Method
(a) What is the Bernoulli equation?
(b)應用Bernoulli equation 的假設為何?
1.解釋名詞(25%) (3)舉出如何判定流況已達 fully developed condition
1.解釋名詞(25%) (4)Major loss and Minor loss
1.解釋名詞(25%) (5)boundary layer thickness and momentum thickness
2. (20%)
試畫出Moody chart(儘量詳細),並解釋圖上每一個參數以及Moody chart的用途
3.(15%)
 Describe and derive the Reynolds Transport Theorem(詳細推導過程)

4. (20%) For a horizontal T through which water (density = 1000 kg/m3) is flowing, the following data are given: Q1-=0.25 m3/s, Q2=0.1 m3/s, p1=100 kpa, p2=70 kpa, p3=80 kpa, D1=15 cm, D2=7 cm, and D3=15 cm. For these conditions, what external force61c0305f6ecbe.jpgin the x-y plane (through the supporting devices) is needed to hold this T in place?
61c0307c9c379.jpg
(a) Show that this profile satisfies the appropriate boundary conditions for the boundary layer;

(b) Use the momentum integral equation to determine the boundary thickness, δ