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Other Friction Losses

Goals. Calculate frictional losses in a system containing valves, fittings, and sudden expansions and contractionsExpress frictional losses in terms of velocity head Assess relative contributions of different sources to total viscous dissipation. Sudden Expansion. Frictional losses occur as result of turbulence generated immediately downstream of the expansion.

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Other Friction Losses

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    1. Other Friction Losses Valves and Fittings

    2. Goals Calculate frictional losses in a system containing valves, fittings, and sudden expansions and contractions Express frictional losses in terms of velocity head Assess relative contributions of different sources to total viscous dissipation

    3. Sudden Expansion

    4. Sudden Expansion

    5. Sudden Expansion Mass Balance

    6. Sudden Expansion Momentum Balance

    7. Momentum Balance

    8. Mechanical Energy Balance

    9. Combining

    10. Final Result

    11. Sudden Contractions

    12. Sudden Contraction

    13. Valves and Fittings

    14. Summary for Fittings

    15. Alternate Method

    17. Velocity Heads

    18. Valve Video Notes

    19. Example

    20. Practical Use of Velocity Heads In Making Design Calculations

    21. Friction Loss Estimates

    22. Estimate of Friction Losses

    23. Example

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