- #1
Mohamed_Wael
- 23
- 0
why does the pressure drop equation derived for the laminar flow has no parameter to indicate the surface roughness of the material of the pipe,unlike the turbulent flow !
Bystander said:The boundary layer velocity is zero.
In laminar flow, pressure drop is not affected by the type of material the pipe is made of. This is because in laminar flow, the flow of fluid is smooth and orderly, and the resistance to flow is primarily determined by the geometry of the pipe rather than the properties of the material.
In laminar flow, the movement of fluid is characterized by layers that slide smoothly over each other. This results in minimal friction between the fluid and the pipe walls, regardless of the material the pipe is made of. As a result, pressure drop is not influenced by the pipe material.
Yes, the size of the pipe does affect pressure drop in laminar flow. A larger pipe diameter will result in a lower pressure drop because there is more space for the fluid to flow through, reducing the resistance to flow. However, the pipe material still does not have an impact on pressure drop.
Yes, pipe material can have an impact on pressure drop in turbulent flow. Turbulent flow is characterized by chaotic movement and mixing of fluid, which causes more friction between the fluid and the pipe walls. The roughness or smoothness of the pipe material can affect this friction and therefore, influence pressure drop.
Yes, there are other factors that can affect pressure drop in laminar flow. These include the fluid viscosity, flow rate, and pipe length. A higher viscosity fluid will result in a higher pressure drop, while a higher flow rate or longer pipe length will result in a lower pressure drop.