Velocity distribution in a dissuser

In summary, to express the velocity distribution in the diffuser section of the FORTRAN coding for predicting flow separation over a flat plate, a combination of analytical, numerical, and experimental methods can be used, such as solving the Bernoulli equation, using CFD software, and conducting experiments with tools like a Pitot tube, LDV, or PIV.
  • #1
bdcrown007
16
0
I am trying to implement a FORTRAN coding about prediction of flow separation over a flat plate. Experimental setup is as follows:
2mf0u9h.jpg


i.e. 0.6m rectangular section and remaining 1.4m has diffuser section which has adjustable top. Flow variation in rectangular section is not so remarkable but at diffuser section due to diffuser shape somewhere flow will be separated from bottom flat plate.

How can I express the velocity distribution in diffuser section?
 
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  • #2
The velocity in the diffuser section can be expressed using a combination of analytical, numerical, and experimental methods. Analytically, the velocity can be expressed by solving for the Bernoulli equation for a given pressure gradient along the flowstream. Additionally, the velocity can be expressed numerically using CFD software such as ANSYS or FLUENT. Finally, the velocity can be found through experiments using a Pitot tube, laser Doppler velocimetry (LDV), or Particle Image Velocimetry (PIV).
 

Related to Velocity distribution in a dissuser

What is velocity distribution in a diffuser?

Velocity distribution in a diffuser refers to the variation in the velocity of a fluid as it flows through a diverging channel or pipe. It is an important concept in fluid dynamics and is used to analyze the behavior of fluids in various engineering applications.

How is velocity distribution affected by the shape of a diffuser?

The shape of a diffuser greatly affects the velocity distribution of the fluid. A diverging diffuser will cause the fluid to slow down and spread out, resulting in a decrease in velocity. On the other hand, a converging diffuser will cause the fluid to speed up and become more concentrated, resulting in an increase in velocity.

What factors influence velocity distribution in a diffuser?

The shape and size of the diffuser, the fluid's viscosity, and the inlet velocity are some of the factors that can influence velocity distribution in a diffuser. Other factors such as turbulence, pressure gradient, and Reynolds number can also play a role in determining the velocity distribution.

Why is understanding velocity distribution important in engineering?

Understanding velocity distribution in a diffuser is crucial in engineering as it helps in predicting the behavior of fluids in different systems. This knowledge can be used to design more efficient and effective hydraulic systems, ventilation systems, and other engineering applications that involve fluid flow.

How is velocity distribution measured in a diffuser?

Velocity distribution in a diffuser can be measured using various techniques such as hot-wire anemometry, laser Doppler anemometry, and Pitot tubes. These methods involve measuring the velocity at different points in the diffuser and plotting a velocity profile to understand the distribution.

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