Numerical Study of the Intermittency Region in Two-Fluid Turbulent Flow

  • S. V. Kraheberger
  • T. Wacławczyk
  • M. Wacławczyk
Conference paper
First Online:
Part of the Springer Proceedings in Physics book series (SPPHY, volume 165)

Abstract

In this work we describe interactions between turbulence and water-air surface in the ensemble-averaged picture where, instead of a sharp interface between the phases we deal with a “surface layer” where the probability of the surface position is nonzero. Changes of the turbulent kinetic energy and the characteristic size eddies influence the width of the “surface layer”. We present a numerical solution and convergence tests for the equation for the intermittency function \(\alpha \) which describes the probability of finding the water phase at a given point and time.

Keywords

Turbulent Kinetic Energy Water Phase Surface Position Water Side Eddy Size 
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Notes

Acknowledgments

This work was supported by Deutscher Forschungsgemeinschaft (DFG) funding grant No. WA 3097/3-1, WA 3098/2-1 “Modeling of turbulence-interface interaction in two-fluid systems”.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • S. V. Kraheberger
    • 1
  • T. Wacławczyk
    • 2
  • M. Wacławczyk
    • 1
  1. 1.Chair of Fluid Dynamics, Department of Mechanical EngineeringTU DarmstadtDarmstadtGermany
  2. 2.Institute for Numerical Methods in Mechanical EngineeringTU DarmstadtDarmstadtGermany

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