열유체실습 풍동 실험 결과보고서(성균관대)

목차

1. Airfoil
1) Introduction
2) Objectives
3) Data
4) Result and Discussion

2. Drag and Lift Forces on the surface of cylinder
1) Introduction
2) Objectives
3) Data
4) Result
5) Discussion

본문내용

- Airfoil -
Introduction
Lift and drag vary according to the angle an airfoil makes with its direction of travel through a
fluid. This angle is known as angle of attack, angle of incidence, or alpha. In evaluating an airfoil it
is common to perform an alpha sweep that records the lift and drag of an airfoil at various angles.
The lift and drag are usually plotted as dimensionless quantities.

Objectives
This experiment is to know the angle of attack when the stall is occurred during flying in the air.
It can be revealed by increasing the angle of attack at the airfoil checking the angle and velocity
of the air flow on the airfoil

Airfoil
A fixed-wing aircraft's wings, horizontal, and vertical stabilizers are built with airfoil-shaped cross sections, as are helicopter rotor blades. Airfoils are also found in propellers, fans, compressors and turbines. Sails are also airfoils, and the underwater surfaces of sailboats, such as the centerboard and keel, are similar in cross-section and operate on the same principles as airfoils.

참고자료

· http://www.engineeringtoolbox.com/lift-drag-fluid-flow-d_1657.html
· http://en.wikipedia.org/wiki/Airfoil
· Fundamentals of Engineering Supplied-Reference Handbook, 4th, NCEES
· http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html (2014.03.17)
· Fundamentals of Heat and Mass Transfer, 6 Edition. Incropera DeWitt, Bergmann Lavine
· Fundamentals of Engineering Supplied-Reference Handbook, 4th, NCEES
· http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html (2014.03.17)
· http://www.engineeringtoolbox.com/convective-heat-transfer-d_430.html (2014.03.16)
· http://en.wikipedia.org/wiki/Reynolds_number (2014.03.17)
· http://www.thermopedia.com/content/595/?tid=104&sn=1159 (2014.03.17)
· http://examples.yourdictionary.com/reference/examples/examples-of-convection.html (2014.03.16)