A method to predict two-phase pressure drop using condensation heat transfer data

P. K. Sarma, V. D. Rao, T. Subrahmanyam, Sadik Kakac, H. T. Liu

Research output: Contribution to journalArticle

2 Scopus citations


The data of Kutateladze related to mean condensation heat transfer coefficients of pure vapors of steam flowing in a horizontal tube are correlated considering the phenomenon as a homogenous flow. Colburn's analogy assuming to hold good the mean friction coefficients for a homogenous flow conditions are evaluated making use of heat transfer data. By extending the model further the two-phase frictional pressure drop multipliers are established. Predictions from these correlations have reasonably agreed with the magnitudes obtained from Lockhart and Martinelli correlations which are conventionally used in the design.

Original languageEnglish (US)
Pages (from-to)184-190
Number of pages7
JournalInternational Journal of Thermal Sciences
Issue number2
StatePublished - Feb 2000



  • Condensation heat transfer analogy
  • Friction multipliers
  • Two-phase flow

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

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