GATE Aerodynamics: Basic fluid mechanics: kinematics, conservation laws, dimensional analysis, incompressibility and Newtonian fluids – Previous Year Questions
17 GATE previous year questions on Basic fluid mechanics: kinematics, conservation laws, dimensional analysis, incompressibility and Newtonian fluids (Aerodynamics, Aerospace Engineering) with answers and explanations, from every paper.
- GATE 2021 AE Q13 – The velocity field V=(2x+3y) i+(3x+2y) j represents
- GATE 2021 AE Q37 – Three floating ice blocks contain (i) pure ice, (ii) a steel ball, (iii) an air bubble. After complete melting, the respective water-level changes are
- GATE 2021 AE Q38 – To estimate loads on an aircraft flying at 100 km/h at standard sea level, a one-fifth scale model is tested in a variable-density tunnel at ten times…
- GATE 2021 AE Q50 – A stationary cart carries a water tank and deflector. A 5 cm diameter jet of speed 10 m/s is deflected through 60° as shown. With water density 1000…
- GATE 2022 AE Q16 – For steady two-dimensional incompressible flat-plate flow in control volume PQRS, inlet PQ speed is uniform u and outlet RS speed is u=A 0(y/h)n, n…
- GATE 2022 AE Q39 – A 900 mm cylinder moves axially in air at 60 m/s. A half-scale water model has drag 2280 N. Air has μ=1.8610-5 Pa s and ρ=1.2 kg/m³; water has…
- GATE 2022 AE Q50 – Air flow is V=ay i+bx j, with a=10 s⁻¹, b=20 s⁻¹ and ρ=1 kg/m³. Pressure at (0,0) is 100 kPa. Neglecting gravity, pressure at (6,8) m (nearest integer…
- GATE 2022 AE Q53 – A converging duct has inlet area 1 m² and speed 15 m/s at 300 K. Air is inviscid and isothermal with R=287 J/(kg K), γ=1.4. Minimum exit area for…
- GATE 2023 AE Q55 – A pump follows C P=a2, with C P=P/(3D5) and dimensionless volume-flow coefficient Φ. At constant flow, changing rotation rate to 1.25ω changes power…
- GATE 2023 AE Q58 – Enstrophy is squared vorticity magnitude. For V=(4x-1.5y+2.5z) i+(1.5x-1.5y) j+0.7xy k, enstrophy at (1,1,1), to two decimal places, is .
- GATE 2026 AE Q34 – The vortex shedding frequency behind a landing gear model is found to be 50 Hz when tested in a wind tunnel operating at 5 m/s. If the actual landing…
- GATE 2026 AE Q43 – An experimental study is planned to map out the low-Reynolds number incompressible steady two-dimensional aerodynamic characteristics of a promising…
- GATE 2025 AE Q21 – In a fluid flow, Mach number is an estimate of .
- GATE 2025 AE Q47 – A rectangular wing of 1.2 m chord length and aspect ratio 5 is tested in a wind tunnel at an air speed of 60 m/s. The density and the dynamic…
- GATE 2025 AE Q48 – In a low-speed airplane, a venturimeter with 1.3:1 area ratio is used for airspeed measurement. The airplane's maximum speed at sea level is 90 m/s.…
- GATE 2024 AE Q63 – The figure (not to scale) shows a control volume to estimate the forces on the airfoil with elliptic cross-section. Surfaces 2 and 3 are streamlines.…
- GATE 2024 AE Q65 – It is desired to estimate the aerodynamic drag, D, on a car traveling at a speed of 30 m/s. A one-third scale model of the car is tested in a…