Calculate head loss per meter clarification

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SUMMARY

The discussion focuses on calculating head loss per meter in a capillary tube with a bore radius of 0.45 mm, fluid density of 850 kg/m³, and viscosity of 25 cP, flowing at a rate of 50 l/hr. The initial attempt utilized Poiseuille's Law but was critiqued for an error in area calculation, specifically being off by a factor of 1000. The flow regime must also be determined as either turbulent or laminar based on the Reynolds number derived from the given parameters.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with Poiseuille's Law
  • Knowledge of Reynolds number calculation
  • Basic skills in unit conversion for fluid flow rates
NEXT STEPS
  • Calculate Reynolds number for the given parameters
  • Review Poiseuille's Law for capillary flow applications
  • Explore the implications of laminar vs. turbulent flow
  • Learn about unit conversions for fluid dynamics calculations
USEFUL FOR

Fluid mechanics students, engineers working with capillary systems, and professionals involved in hydraulic calculations will benefit from this discussion.

gtchucker09
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Calculate the head loss per metre length of a capillary tube which has a bore radius of 0.45 mm when a fluid of density 850 kg/m3 and viscosity of 25 cP is flowing at a rate of 50 l/hr. State whether the flow is turbulent or laminar.

I have attached my attempt at a solution using poiseuille's law any feedback /clarification is greatly appreciated
 

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Your area is off by a factor of 1000. Try again.
 

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