Lagrangian transport equation of fluctuating kinetic energy in the dispersed phase

Keh-Chin Chang, W. J. Wu, J. Ch Yang

Research output: Contribution to journalArticle

Abstract

Limitations of the conventional stochastic approach which is widely used in the study of two-phase turbulent flows are addressed. The Lagrangian transport equation of the fluctuating kinetic energy in the dispersed phase (kpk) is then formulated in order to overcome the above limitations. Closure of the transport equation of kpk requires a model of the turbulence modulation term. Two simple turbulence modulation models are selected for the demonstration of kpk computations through two well-defined problems. Modifications to these two models are also made by introducing kpk variable into the models. It is found that the modified models yield more satisfactory kpk predictions than the original models in the test problems.

Original languageEnglish
Pages (from-to)808-817
Number of pages10
JournalInternational Journal of Fluid Mechanics Research
Volume24
Issue number4-6
DOIs
Publication statusPublished - 1997 Jan 1

Fingerprint

Kinetic energy
kinetic energy
Turbulence
turbulence
Modulation
modulation
turbulent flow
Turbulent flow
closures
Demonstrations
predictions

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physics and Astronomy(all)

Cite this

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abstract = "Limitations of the conventional stochastic approach which is widely used in the study of two-phase turbulent flows are addressed. The Lagrangian transport equation of the fluctuating kinetic energy in the dispersed phase (kpk) is then formulated in order to overcome the above limitations. Closure of the transport equation of kpk requires a model of the turbulence modulation term. Two simple turbulence modulation models are selected for the demonstration of kpk computations through two well-defined problems. Modifications to these two models are also made by introducing kpk variable into the models. It is found that the modified models yield more satisfactory kpk predictions than the original models in the test problems.",
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Lagrangian transport equation of fluctuating kinetic energy in the dispersed phase. / Chang, Keh-Chin; Wu, W. J.; Yang, J. Ch.

In: International Journal of Fluid Mechanics Research, Vol. 24, No. 4-6, 01.01.1997, p. 808-817.

Research output: Contribution to journalArticle

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