A stream function is given by Ψ=5x-6y, Calculate the velocity components u and v in units/sec? Fluid Mechanics
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The velocity components in x ,y and z directions of a velocity potential function is given by,
A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below :Δ P/L = 375 x 10³ VOM + 10.94 x 10⁶ V²OM (SI units)If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is
The velocity vector in a fluid flow is given by, V=4x3i-10x2yj+2tk.Find the velocity vector of a fluid particle at (2,1,3) at t=1
Calculate the kinematic viscosity of water in m2/sec if the dynamic viscosity is 1.226 Ns/m2?
The Areas of a pipe at section 1 and 2 are 0.007854m2 and 0.017m2. Find the discharge through the pipe if the velocity of water flowing through the pipe at section 1 is 5m/s. Find the velocity of water at section 2.
Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as
Calculate the Capillary rise in a glass tube of 2.5 mm diameter when immersed vertically in mercury. Take surface tension, σ =0.52 N/m for mercury in contact with air. The density of mercury is given as 13,600 kg/m3 and angle of contact =130°
The type of flow in which velocity at any given time does not change with respect to space is
Which units of measurement are used for volume?
What units are used to measure Density?
What is the equation used to calculate pressure?
Calculate the discharge through the venturimeter which is used to measure the flow of water if the area at inlet and throat are 706.85 cm2 and 176.7cm2 and difference of pressure head is 252m of water.
For the following equation f(V, H, D, g, σ, Φ)=0 calculate the total number of π terms as per Buckingham’s π theorem
The tangential velocity of the water element having a free vortex is
States that as the velocity of a fluid increases, the pressure decreases. This causes planes to fly .
Bernoulli's principle states that as the velocity of a fluid ______, the pressure exerted by the fluid ______
Bernoulli’s principle states that the pressure in a fluid decreases as its velocity increases.
The rate of change of velocity due to change of position of fluid particles in a fluid flow is called as
A line along which the velocity potential Φ is constant is called as
The device used for measuring the velocity of flow at any point in a pipe or channel is