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How will heat transfer affect the fluid velocity at the nozzle exit?
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What is the difference between Diffuser and nozzle?
A nozzle is a device which increases the velocity of fluid by decreasing the Pressure but contrary to it Diffuser is a device that increases the Pressure of fluid at the expense of its velocity
v.Does high fluid velocity and low fluid velocity affect the value of Cd?
Yes
How does the velocity of the fluid effects the convection heat transfer?
boundary layer problem
How would changing velocity affect acceleraition?
the more viscus the fluid, that faster is moves
The transfer of heat by fluid?
The transfer of heat by fluid is convection.
What is the difference between Diffuser and nozzle?
A nozzle is a device which increases the velocity of fluid by decreasing the Pressure but contrary to it Diffuser is a device that increases the Pressure of fluid at the expense of its velocity
Why Fluid Speed Increases in the Divergent Portion of a Convergent-Divergent nozzle?
Because the fluid is allowed to expand in the nozzle it increases velocity to fill in the voids created by the shape of the nozzle. The convergent point of the nozzle acts like a bottleneck trying to slow the fluid and compress it into the reduced crosssection of the nozzle. As it leaves the minimum crosssection it expands into the divergent spaces of the nozzle increasing in velocity as it expands. ++_+ No: it gains velocity through the convergence but in the diverging section, trades velocity for pressure.
What are the advantages and disadvantages of flow nozzle?
One disadvantage in the convergent-divergent nozzle as a shock wave can take place in the nozzle A nozzle is a device that converts pressure energy to kinetic energy (increasing fluid velocity on the account of static pressure) For a convergent nozzle there is no disadvantages as it can raise the fluid velocity only for the sonic speed the convergent-divergent type raises the velocity to over than sonic speed making supersonic flow, this could make a shock wave in the nozzle that turns the supersonic flow to subsonic flow
v.Does high fluid velocity and low fluid velocity affect the value of Cd?
Yes
What is the working principle of convergent-divergent nozzle?
A NOZZLE IS A DUCT WHICH CONVERT HEAT ENERGY INTO KINETIC ENERGY.IT INCREASES VELOCITY OF FLUID PASSING THROUGH IT ,AT THE EXPENCE OF PRESSURE. STEAM EXPANDS IN NOZZLE FOLLOW RANKINE CYCLE.FLOW THROUGH NOZZLE IS ISENTROPIC. mritunjay04@gmail.com
what is purpose of nozzle in steam turbine?
It sends hot gases from the combustion chamber to the 1st stage turbine blades at the correct angle and speed
How does the velocity of the fluid effects the convection heat transfer?
boundary layer problem
What is critical pressure in nozzle?
Critical pressure in a nozzle is the pressure at which the flow of material through the nozzle reaches its maximum. Beyond which any increase in pressure will not result in an increase in flow. The point at which the velocity of a fluid in the throat of the nozzle reaches the local speed of sound, creating a sonic wave, or a sonic choke.
What is exactly meant by interficial velocity?
Interfacial velocity is the speed of a fluid whose movement is generated by its mass transfer from a phase to the next . Another factor that generates interfacial velocity is the bulk motion of the fluid, known as advection.
What does jet stand for?
a. A high-velocity fluid stream forced under pressure out of a small-diameter opening or nozzle. b. An outlet, such as a nozzle, used for emitting such a stream. c. Something emitted in or as if in a high-velocity fluid stream: "such myriad and such vivid jets of images" Henry Roth. d. A jet-propelled vehicle, especially a jet-propelled aircraft. e. A jet engine.
What is jet impingement?
A fluid stream issuing from a nozzle at high velocity and hence a high kinetic energy term as Jet. The fluid at high velocity impinges on the plate or vanesthrough a fluid jet is know as Jet impingement.when the jet impinges on thevane,the momentum of the vane is changed and hydrodynamic force is exerted.
How would changing velocity affect acceleraition?
the more viscus the fluid, that faster is moves
