3. Two-phase pressure drop

Summary

  • Subject: Two-phase pressure drops

  • Main conclusion Chisholm’s two-phase multiplier \(\phi_{L}^{2} = 1 + \frac{C}{X} + \frac{1}{X^{2}}\)

  • Key idea Two-phase multiplier extends single-phase modeling to two-phase flow situations.

  • References

    • Lockhart and Martinelli [LM49]: The first of separate flow model

    • Chisholm [Chi67]: derivation of [LM49]

    • Chisholm [Chi83]: consistent approach is utilized to establish 1D modeling of a wide variety of two-phase problems.

Pressure drop is of fundamental importnce in fluid engineering. The same applies to two-phase flows. Fundamental treatments of two-phase pressure drop will be discussed in the following.