GATE AE 2011 • Q49 NAT • 2 Marks

Aerodynamics & Fluid Mechanics

Incompressible & Compressible Aerodynamics

Subtopic: Airfoil & Wing Theory

Question Statement:

(A) 0 ) , 0 (t w (B) 0 ) , (2 2   t Lx w (C) 0 ) , 0 (2 2   tx w (D) 0 ) , (3 3   t Lx w Common Data for Questions 50 and 51: Consider an inviscid, adiabatic flow of air at free stream Mach Number, M ∞ = 2, across a compression corner (θ = 20°) as shown. The free stream total enthalpy is h 0∞ = 810 kJ kg-1. Assume that air is calorically perfect with γ = 1.4, R = 287 J kg-1 K-1. The shock angle β is

Official Answer Key:

0.0

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2011 Q.49)** **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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