Discussion
Consider the following statements about thin airfoil theory.
1. It predicts a lift curve slope of two pi per radian.
2. It places the aerodynamic centre at the quarter chord.
3. It predicts the profile drag of the section accurately.
Which of the statements given above is or are correct?
Answer: C
The first two are standard results of the theory and agree well with measurement at low incidence. The third is false: the theory is inviscid and gives no drag at all, so profile drag has to come from experiment or from a viscous calculation.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development