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An investigation of subchannel analysis models for single-phase and two-phase flow

Abstract

The governing equations and lateral transport modelings of subchannel analysis code, which is the most widely used tool for the analysis of thermal hydraulics fields in reactor cores, have been thoroughly investigated in this study. The procedure for the derivation of subchannel integral balance equations from the local instantaneous phase equations was investigated by stages. The characteristics of governing equations according to the treatment of phase velocity were studies, and the equations based on the drift-flux equilibrium formulation have been derived. Turbulent mixing and void drift modeling, which affect considerably to the accuracy of subchannel analysis code, have been reviewed. In addition, some representative modelings of single-phase and two-phase turbulent mixing models have been introduced. (author). 5 tabs., 4 figs., 16 refs.
Authors:
Publication Date:
Jan 01, 1996
Product Type:
Technical Report
Report Number:
KAERI/TR-804/97
Reference Number:
SCA: 420400; PA: AIX-28:064453; EDB-97:126509; SN: 97001855175
Resource Relation:
Other Information: PBD: Jan 1996
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; FUEL ASSEMBLIES; TWO-PHASE FLOW; REACTOR CORES; FLUID FLOW; TURBULENT FLOW; VOIDS
OSTI ID:
529021
Research Organizations:
Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE98600699; TRN: KR9700100064453
Availability:
INIS; OSTI as DE98600699
Submitting Site:
KRN
Size:
74 p.
Announcement Date:
Oct 15, 1997

Citation Formats

Hwang, Dae Hyun. An investigation of subchannel analysis models for single-phase and two-phase flow. Korea, Republic of: N. p., 1996. Web.
Hwang, Dae Hyun. An investigation of subchannel analysis models for single-phase and two-phase flow. Korea, Republic of.
Hwang, Dae Hyun. 1996. "An investigation of subchannel analysis models for single-phase and two-phase flow." Korea, Republic of.
@misc{etde_529021,
title = {An investigation of subchannel analysis models for single-phase and two-phase flow}
author = {Hwang, Dae Hyun}
abstractNote = {The governing equations and lateral transport modelings of subchannel analysis code, which is the most widely used tool for the analysis of thermal hydraulics fields in reactor cores, have been thoroughly investigated in this study. The procedure for the derivation of subchannel integral balance equations from the local instantaneous phase equations was investigated by stages. The characteristics of governing equations according to the treatment of phase velocity were studies, and the equations based on the drift-flux equilibrium formulation have been derived. Turbulent mixing and void drift modeling, which affect considerably to the accuracy of subchannel analysis code, have been reviewed. In addition, some representative modelings of single-phase and two-phase turbulent mixing models have been introduced. (author). 5 tabs., 4 figs., 16 refs.}
place = {Korea, Republic of}
year = {1996}
month = {Jan}
}