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Simulation of Moderator Flow and Temperature Inside Calandria of CANDU Reactor Using Artificial Compressibility Method

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Title Simulation of Moderator Flow and Temperature Inside Calandria of CANDU Reactor Using Artificial Compressibility Method
 
Creator MANDAL, JC
SONAWANE, CR
 
Description Numerical computations of moderator flows inside calandria of the typical CANDU-6 reactor are presented here. The numerical model is based on incompressible Navier-Stokes equations in artificial compressibility formulation with dual time-stepping approach for time-accurate computations. A high-resolution unstructured finite-volume scheme, based on the HLLC-AC Riemann solver for convective fluxes and central differencing type discretization for viscous fluxes, is used here. In order to simulate more realistic flow, the calandria tube matrix is considered directly, in contrast with the usual practice of indirect accounting of tube bundles through porosity modeling. The moderator flows are computed for different operating conditions. The nature of computed flow is found to be dependent on the relative balance between momentum and buoyancy forces as observed by Carlucci. A parametric study is also carried out to investigate the effect of moderator inlet diffuser location, moderator inlet flow velocity, and angle of moderator inlet diffuser. The inlet flow velocity and inlet diffuser location are found to have significant effect on flow features inside the calandria.
 
Publisher TAYLOR & FRANCIS INC
 
Date 2014-12-28T12:36:37Z
2014-12-28T12:36:37Z
2014
 
Type Article
 
Identifier HEAT TRANSFER ENGINEERING, 35(14-15)1254-1266
0145-7632
1521-0537
http://dx.doi.org/10.1080/01457632.2013.876802
http://dspace.library.iitb.ac.in/jspui/handle/100/16555
 
Language English