TITLE:          Detailed thermal-hydraulic channel flow computations with blockage:  application to Gas-Cooled Reactor prismatic core assembly

SUBJECT:    A Gas-Cooled Reactor (GCR) concept with a prismatic core assembly is considered.  Forced convection Helium flow in cylindrical channels provides efficient heat removal.  The accidental condition under which a channel is blocked may prove problematic as it may induce local heating of the core above allowable limits.  The study consists of two parts:

            -Comparison between a homogenized (porous media) flow and heat transfer model and a detailed assembly calculation in which the channels are

              represented for nominal flow conditions

            -Study of the case where a channel is blocked – detailed model and homogenized model

TOOLS:        CAST3M structural mechanics and fluid mechanics code, Finite Element methods

PERIOD:     6 months, starting at the earliest in March 2006

STUDENT LEVEL:  BS or MS (preferred) level                   

French Level:  Not required

RESPONSIBLE PERSON:
(address, phone, fax)
 
 
 
 
 

H. Paillere

CEA Saclay

DM2S/SFME/LTMF

Phone:  +33 1 69 08 84 09
Fax:      +33 1 69 08 82 29
E-mail:  henri.peillere@cea.fr