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ahmedbadr
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when flowing fluid passes through throttling there is a drop in pressure and also there's a drop in temperature why?can anyone help??
ahmedbadr said:well,u say there is expansion i don't know why there is expansion what causes this expansion??also i can get why pressure decreases in the constriction but according 2 bernoulli equation pressure will restore its value when fluid get out of constriction and back to flow in the same diameter before constriction but that doesn't happen??
When a fluid passes through a throttling device, the flow area decreases, leading to an increase in velocity. According to Bernoulli's principle, as the velocity of a fluid increases, the pressure decreases. Therefore, the drop in pressure is caused by the increase in fluid velocity.
The type of fluid affects the magnitude of pressure drop in a throttling process because it determines the fluid's viscosity and compressibility. Highly viscous fluids, such as honey, will experience a larger pressure drop compared to less viscous fluids, such as water. Additionally, gases, which are more compressible than liquids, will experience a larger pressure drop in a throttling process.
Yes, there is a direct relationship between the rate of flow and the pressure drop in a throttling process. As the flow rate increases, the pressure drop also increases. This is because a higher flow rate means a larger change in velocity, according to Bernoulli's principle, resulting in a larger pressure drop.
The shape and size of a throttling device can significantly influence the pressure drop in a fluid flow. A smaller and more streamlined throttling device will create a higher velocity of fluid flow, resulting in a larger pressure drop. Additionally, the shape and size of the device can also affect the flow pattern of the fluid, further impacting the pressure drop.
Understanding pressure drop in a throttling process is crucial in various practical applications, such as designing pipelines, valves, and flow control systems. It also plays a significant role in industries that involve the transportation of fluids, such as oil and gas, chemical, and food processing. Additionally, knowledge of pressure drop can help identify and troubleshoot issues in fluid flow systems, ensuring efficient and safe operation.