Laminar and turbulent flow on dripping blood

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SUMMARY

The discussion centers on the application of laminar and turbulent flow principles to the phenomenon of dripping blood, particularly in scenarios involving impact from a weapon or uneven surfaces. Participants agree that the initial flow of blood is predominantly laminar and viscous until it encounters an external force, leading to potential turbulence. A recommended resource for further understanding is an article from the American Physical Society, which provides insights into fluid dynamics relevant to this topic.

PREREQUISITES
  • Understanding of fluid dynamics principles, specifically laminar and turbulent flow.
  • Familiarity with viscosity and its effects on fluid behavior.
  • Knowledge of the impact of external forces on fluid motion.
  • Basic comprehension of blood's physical properties as a fluid.
NEXT STEPS
  • Read the article from the American Physical Society on fluid dynamics.
  • Explore the characteristics of laminar flow in various fluids.
  • Investigate the transition from laminar to turbulent flow in real-world applications.
  • Examine the effects of surface irregularities on fluid behavior during impact.
USEFUL FOR

This discussion is beneficial for fluid dynamics researchers, forensic scientists analyzing blood spatter patterns, and anyone interested in the physics of liquids under varying conditions.

helpmehelpme
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Can laminar and turbulent flow be used to explain dripping blood? Be it blood dripping from a weapon/ impacting on an uneven surface?
 
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helpmehelpme said:
Can laminar and turbulent flow be used to explain dripping blood? Be it blood dripping from a weapon/ impacting on an uneven surface?
Welcome to the PF.

I would think most of the flow is laminar and viscous (until the impact you mention), but I'm no expert in fluid flow (you will get replies from those experts here as well). What reading have you done about your question? Here is an article that you may find helpful:

https://physics.aps.org/story/v4/st9
e9_1_medium.jpg
 

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helpmehelpme said:
Can laminar and turbulent flow be used to explain dripping blood? Be it blood dripping from a weapon/ impacting on an uneven surface?
I would not refer to a dripping liquid as "flowing", no.
 
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I'm unclear about the question. What are you trying to explain about dripping?
 
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