Questions Archive - Page 36 of 38

Calculate time rate of change of volume and the vorticity for a source flow.

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

Vorticity

Worldtech Asked on 3rd January 2019 in Fluid dynamics.

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For a vortex flow, u=4x/(x^2+y^2) and v=–4y/(x^2+y^2), calculate (a) The time rate of change of the volume of a fluid element per unit volume. (b) The vorticity.

For a vortex flow, \(u = \frac{{4x}}{{{x^2} + {y^2}}}\) and \(v = \frac{{ – 4y}}{{{x^2} + {y^2}}}\), calculate (a) The …

Vorticity

techAir Asked on 3rd January 2019 in Fluid dynamics.

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Consider a velocity field where x and y components of velocity are \(u = 4y/\left( {{x^2} + {y^2}} \right)\) and \(v = – 4x/\left( {{x^2} + {y^2}} \right)\). Calculate the vorticity.

Consider a velocity field where x and y components of velocity are \(u = 4y/\left( {{x^2} + {y^2}} \right)\) and …

Vorticity

Worldtech Asked on 2nd January 2019 in Fluid dynamics.

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The x and y components of a velocity field are given by u = 5y/(x^2 + y^2) and v = (-5x/(x^2 + y^2). Calculate the circulation around a circular path of radius 3m. Let the units of u and v be in m/s.

Consider a velocity field where x and y components of velocity are \(u = 5y/\left( {{x^2} + {y^2}} \right)\) and \(v = …

Circulation

techAir Asked on 2nd January 2019 in Aerodynamics.

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Determine if the flow is rotational or irrotational. A velocity field has a radial component of velocity \({V_r} = 0\) and tangential components of velocity \({V_\theta } = 4r\), respectively.

A velocity field has a radial component of velocity \({V_r} = 0\) and tangential components of velocity \({V_\theta } = …

Worldtech Asked on 2nd January 2019 in Fluid dynamics.

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1 answers
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Calculate the location of center of pressure of an airfoil section at an angle of attack of 5o, whose coefficient of lift, cl is 0.80 and cm,c/4 is -0.08. Consider incompressible flow over the airfoil.

Calculate the location of center of pressure of an airfoil section at an angle of attack of \({{\rm{5}}^{\rm{o}}}\), whose coefficient of …

incompressible flow

techAir Asked on 2nd January 2019 in Aerodynamics.

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Water is flowing through a pipe, having inlet inside diameter of 80 mm at 8m/sec. Calculate the velocity at exit if inside diameter is reduced to 30 mm.

Water is flowing through a pipe, having inlet inside diameter of 80 mm at 8 m/sec. Calculate the velocity at …

Worldtech Asked on 2nd January 2019 in Fluid dynamics.

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1 answers
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At a given point on the surface of wing flow velocity is 150 m/sec. What is the pressure coefficient at this point? The velocity of an aircraft is 100 m/sec.

The velocity of an aircraft is 100 m/sec. At a given point on the surface of wing flow velocity is …

techAir Asked on 1st January 2019 in Aerodynamics.

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1 answers
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Pressure coefficient at a certain point on an airfoil is -4.2.Calculate velocity at this point assuming the flow over the airfoil to be inviscid and incompressible.

Pressure coefficient at a certain point on an airfoil is -4.2.Calculate velocity at this point assuming the flow over the …

incompressible flow

techAir Asked on 1st January 2019 in Aerodynamics.

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1 answers
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Find pressure coefficient at a point on an airfoil where velocity is 220 ft/s, which is in a free stream flow of 100 ft/s.

Find pressure coefficient at a point on an airfoil where velocity is 220 ft/s, which is in a free stream …

techAir Asked on 1st January 2019 in Aerodynamics.

1K views
1 answers
0 votes

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