Consider a circulation distribution over a finite wing given by the equation below.
Γ(y) = ൞
Γ ൬1 -2y
b ൰ if 0 ≤ y ≤b
2
Γ ൬1 +2y
b ൰ if - b
2 ≤ y ≤ 0
The wingspan b is 10 m, the maximum circulation Γ is 20 m2/s, density of air is
1.2 kg/m3 and the free stream speed is 80 m/s.
The lift over the wing is ______N (rounded off to the nearest integer).
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.51)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Incompressible & Compressible Aerodynamics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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