- #1
Minghan
- 17
- 2
- TL;DR Summary
- How was the Pipe frictional loss graph created ?
Using which formula to create?
Are there any hydraulic book talking about this ?
What is the relationship between pipe diameter and frictional loss?
- Thread starter Minghan
- Start date
AI Thread Summary
The Moody Diagram is essential for calculating pressure loss in pipes, providing a friction factor based on pipe roughness and Reynolds Number. The formula for pipe friction loss is derived from this diagram. Understanding concepts like laminar vs turbulent flow, viscosity, and head loss is crucial for accurate calculations. For deeper insights, resources on fluid mechanics are recommended. Mastery of these principles is vital for effective pipe design and analysis.
- #2
jrmichler
Mentor
- 2,412
- 3,426
The chart in Post #1 is an attempt to simplify the Moody Diagram and make it easier to use. The Moody diagram is the basic source for calculating pressure loss in pipes.
The formula for pipe friction loss is included in the Moody diagram (or Moody chart). Search those terms for more information. The Moody diagram provides a friction factor as a function of pipe roughness and Reynolds Number. A typical Moody chart is shown below:
To learn more about laminar vs turbulent flow, viscosity, head loss, density, and Reynolds Number, get a book about fluid mechanics. The title will be something like Fluid Mechanics, Engineering Fluid Mechanics, Introductory Fluid Mechanics, or similar. There are many such books available, almost anyone should have the information you need.
The formula for pipe friction loss is included in the Moody diagram (or Moody chart). Search those terms for more information. The Moody diagram provides a friction factor as a function of pipe roughness and Reynolds Number. A typical Moody chart is shown below:
To learn more about laminar vs turbulent flow, viscosity, head loss, density, and Reynolds Number, get a book about fluid mechanics. The title will be something like Fluid Mechanics, Engineering Fluid Mechanics, Introductory Fluid Mechanics, or similar. There are many such books available, almost anyone should have the information you need.
- #3
Minghan
- 17
- 2
Thank you so much!
How did you find PF?: Via Google search
Hi,
I have a vessel I 3D printed to investigate single bubble rise. The vessel has a 4 mm gap separated by acrylic panels. This is essentially my viewing chamber where I can record the bubble motion. The vessel is open to atmosphere.
The bubble generation mechanism is composed of a syringe pump and glass capillary tube (Internal Diameter of 0.45 mm). I connect a 1/4” air line hose from the syringe to the capillary
The bubble is formed at the tip...
Scenario 1 (figure 1)
A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material.
The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm).
At this level of stretch, the load cell reads 45N tensile force.
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I'd like to create a thread with links to 3-D Printer resources, including printers and software package suggestions. My motivations are selfish, as I have a 3-D printed project that I'm working on, and I'd like to buy a simple printer and use low cost software to make the first prototype.
There are some previous threads about 3-D printing like this: https://www.physicsforums.com/threads/are-3d-printers-easy-to-use-yet.917489/
but none that address the overall topic (unless I've missed...
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