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http://dx.doi.org/10.5916/jkosme.2011.35.6.809

Numerical Simulation of Turbulent Flows in Inlet Duct of Heat Recovery Steam Generator  

Kwag, Seung-Hyun (한라대학교 공과대학 컴퓨터응용설계학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.35, no.6, 2011 , pp. 809-813 More about this Journal
Abstract
Turbulent flows are numerically simulated in the three dimensional inlet duct for heat recovery steam generator. The present study is aimed to analyze the effect of a variation in turbulent flow pattern by the change of roof angle in the transition duct. The finite volume based Navier-Stokes equations with unstructured grids are solved to make clear the flow dynamic phenomena. Reviews are made on with the data of path lines, velocity vectors, dynamic pressure, residuals for numerical convergence and so on. The k-epsilon, k-omega, Reynolds stress and RNG k-epsilon are used for generation of turbulence. Two types of roof angle are applied with and without the swirl in the duct. Turbulent flow patterns could be investigated for the optimum duct design based on the computational results.
Keywords
Turbulent flows; Transition duct; Finite volume method; Navier-Stokes; Heat recovery system;
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