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Bo Pang

Numerical study of void drift in rod bundle with subchannel and CFD codes

(KIT Scientific Reports ; 7669)

AutorPang, Bo

VerlagKIT Scientific Publishing, Karlsruhe

ISBN9783731502197

UmfangXXIII, 110 S.

Veröffentlicht
am:
23.07.2014

Erscheinungs-
jahr
2014

VerfügbarkeitAktiv

Printausgabe:

Downloads:

Für Zitate bitte die folgende URL verwenden:
http://dx.doi.org/10.5445/KSP/1000041053

Abstract

In the present study, a new phenomenological two-phase interchannel mixing model was proposed for subchannel analysis in bubbly flow regime under PWR pressure level. The key constitutive relation is the modeling of void drift, for which the concept of a two-phase flow approaching an equilibrium state was adopted. Based on systematic CFD simulations, correlations were proposed to describe both the void fraction distribution at equilibrium state and the effective mixing velocity due to void drift.