Consider the flow over an oval modeled using the elementary potential flows as
shown below. U represents uniform flow velocity and 𝛤 represents circulation
around an irrotational line vortex.
Which of the following statements is/are TRUE for this model?
Options:
(A) Increasing U enlarges the oval
(B) Increasing 𝛤 enlarges the oval
(C) Interchanging the sense of the two vortices does not alter the oval
(D) Moving the vortices too far apart causes the oval to break up
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2026 Q.47)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (2 Marks, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Incompressible & Compressible Aerodynamics.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
Practice This in Real CBT Exam Interface
Test yourself with the official TCS-iON palette, virtual calculator, and immediate performance analytics.