Aerodynamics Archives - Page 8 of 12

Consider a flow field in polar coordinates, where the stream function is given as \(ψ = ψ(r, θ)\). Starting with the concept of mass flow between two streamlines, derive Equations \(\rho V_{r}=\frac{1}{r}\frac{\partial \bar{\psi }}{\partial \theta}\) and \(\rho V_{\theta}=-\frac{\partial\bar{\psi} }{\partial r}\).

Consider a flow field in polar coordinates, where the stream function is given as \(ψ = ψ(r, θ)\). Starting with …

fluids

Worldtech Asked on 30th October 2019 in Aerodynamics.

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Consider a length of pipe bent into a U-shape. The inside diameter of the pipe is \(0.5\;m\). Air enters one leg of the pipe at a mean velocity of \(100\; m/s\) and exits the other leg at the same magnitude of velocity, but moving in the opposite direction. Calculate the magnitude and direction of the force exerted on the pipe by the airflow.

Consider a length of pipe bent into a U-shape. The inside diameter of the pipe is \(0.5\;m\). Air enters one …

fluids

techAir Asked on 29th October 2019 in Aerodynamics.

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Consider a velocity field where the radial and tangential components of velocity are Vr = 0 and Vθ = cr, respectively, where c is a constant. Is the flow field irrotational? Prove your answer.

Consider a velocity field where the radial and tangential components of velocity are \(V_{r} = 0\) and \(V_{θ} = cr\), …

irrotational flow

Worldtech Asked on 29th October 2019 in Aerodynamics.

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For vortex flow, calculate: (a). The time rate of change of the volume of a fluid element per unit volume. (b). The vorticity.

For vortex flow, calculate: a. The time rate of change of the volume of a fluid element per unit volume. …

vortex flow

techAir Asked on 27th October 2019 in Aerodynamics.

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For source flow, calculate, the time rate of change of the volume of a fluid element per unit volume and the vorticity.

For source flow, calculate: a. The time rate of change of the volume of a fluid element per unit volume. …

source flow

Worldtech Asked on 27th October 2019 in Aerodynamics.

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Consider a velocity field where the \(x\) and \(y\) components of velocity are given by \(u = cx\) and \(v = −cy\), where \(c\) is a constant. Obtain the equations of the streamlines.

Consider a velocity field where the \(x\) and \(y\) components of velocity are given by \(u = cx\) and \(v …

streamlines

techAir Asked on 27th October 2019 in Aerodynamics.

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Consider a velocity field where the radial and tangential components of velocity are \(V_{r} = 0\) and \(V_{θ} = cr\), respectively, where \(c\) is a constant. Obtain the equations of the streamlines.

Consider a velocity field where the radial and tangential components of velocity are \(V_{r} = 0\) and \(V_{θ} = cr\), …

streamlines

Worldtech Asked on 26th October 2019 in Aerodynamics.

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Consider a velocity field where the \(x\) and \(y\) components of velocity are given by \(u = cy/(x^{2} + y^{2})\) and \(v = −cx/(x^{2 }+ y^{2})\), where \(c\) is a constant. Obtain the equations of the streamlines.

Consider a velocity field where the \(x\) and \(y\) components of velocity are given by \(u = cy/(x^{2} + y^{2})\) …

streamlines

techAir Asked on 26th October 2019 in Aerodynamics.

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Consider a velocity field where the \(x\) and \(y\) components of velocity are given by \( u = cx/(x^{2} + y^{2})\) and \(v = cy/(x^{2} + y^{2})\) where \(c\) is a constant. Obtain the equations of the streamlines.

Consider a velocity field where the \(x\) and \(y\) components of velocity are given by \( u = cx/(x^{2} + …

streamlines

techAir Asked on 26th October 2019 in Aerodynamics.

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Consider a steady two-dimensional zero pressure gradient laminar flow of air over a flat plate as shown below. Find the ratio of displacement thickness to momentum thickness of the boundary layer at a distance of 2m from the leading edge.

Consider a steady two-dimensional zero pressure gradient laminar flow of air over a flat plate as shown below. The free …

GATE

Kisan Kumar Asked on 15th October 2019 in Aerodynamics.

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