空氣動力學
Aerodynamics
學期
111-1
學分
3
學分
當期課號
910164
永久課號
SESE20243
開課單位
系統工程與科技學士學位學程
授課教師
尤懷德
類別
必修
上課時間表
| 節 | 週五 |
|---|---|
2 09:00–09:50 | 空氣動力學 3 節連堂 |
3 10:10–11:00 | |
4 11:10–12:00 |
* 根據陽明交大上課時間表所列
概述
本課程將使學生瞭解機翼如何有升力的產生,以及翼形彎度和攻角對翼形壓力分佈所產生的影響。課程內容亦包含流體運動方程式、邊界層效應(層流、流場分離、過渡至紊流)、及阻力產生等。 This course will provide students with an understanding of how lift is produced by an airfoil, and the effect of airfoil camber and angle of attack on the pressure distribution about an airfoil. Discussions also include the equations of motion for a fluid, basic behaviors of boundary layers (from laminar flow, flow separation, and transition to turbulence), and drag production.
先修科目
微積分、工程數學、普通物理 Calculus, Engineering Mathematics, Physics
評分方式
個人作業:30%、期中考:30%、期末考:40%
週次計畫
| 週次 | 主題 |
|---|---|
| 第 1 週 | Introduction (including airfoil nomenclature and fundamental aerodynamic variables) |
| 第 2 週 | Aerodynamic forces and moments; Center of pressure; Dimensional analysis (Buckingham pi theorem); Viscous flow (boundary layers) |
| 第 3 週 | Review of vector relations; Models of fluid: control volumes and fluid elements; Continuity equation; Momentum equation |
| 第 4 週 | Energy equation; Substantial derivatives; Pathlines, streamlines, and streaklines of a Flow |
| 第 5 週 | Angular velocity, vorticity, and strain; Circulation; Stream function; Velocity potential; Relationship between stream Function and velocity potential |
| 第 6 週 | Bernoulli's equation; Incompressible flow in duct; Pressure coefficient |
| 第 7 週 | Condition on velocity for incompressible flow; Governing Equation for irrotational-and-incompressible flow: Laplace’s equation; Non-lifting flow over circular cylinder |
| 第 8 週 | Lifting flow over a circular cylinder; Kutta-Joukowski theorem and generation of lift |
| 第 9 週 | Midterm examination |
| 第 10 週 | Introduction to incompressible flow over airfoil; Airfoil characteristics; Vortex sheet |
| 第 11 週 | Kutta condition; Kelvin’s circulation theorem and Starting vortex; Classical thin airfoil theory for symmetric airfoil |
| 第 12 週 | Classical thin airfoil theory for cambered airfoil; Viscous flow: airfoil drag |
| 第 13 週 | Introduction to incompressible flow over finite wings (downwash and induced Drag); Vortex filament; Biot-Savart law, and Helmholtz’s theorems |
| 第 14 週 | Prandtl’s classical lifting-line theory; Numerical nonlinear lifting-line method |
| 第 15 週 | Lifting-surface theory and vortex lattice numerical method |
| 第 16 週 | Introduction to three dimensional incompressible flow; Three-dimensional source; Three-dimensional doublet |
| 第 17 週 | General three-dimensional flows; Flow over sphere; Panel techniques; Applied aerodynamics: airplane lift and drag |
| 第 18 週 | Final examination |
教科書
Anderson, J. D., Fundamentals of Aerodynamics, 6th ed., McGraw– Hill, New York, 2017 (東華書局季新月圖書公司)