Abstract
The new in-pin fuel motion model CAMDYN (Cavity Material Dynamics) describes the axial motion of both partially and fully molten fuel inside the pin of a fast breeder reactor during accident conditions. The motion of the two types of molten fuel and the imbedded fission gas bubbles is treated both before and after cladding failure. The basic modelling approach consists of the treatment of two one-dimensional flows which are coupled by interaction terms. Each of these flows is treated compressively and with axially variable flow cross sections. The mass and energy equations of both fields are solved explicitly using upwind differencing on a fixed Eulerian grid. The two momentum equations are solved simultaneously, using the convective momentum fluxes of the previous timestep. Both partially and fully molten fuel can move axially into a central hole extending to the plenum in the case of certain hollow pellet designs. The fuel temperature calculation includes the determination of a radial temperature profile. A simple conduction freezing model is included. After cladding failure, ejection into the coolant channel is modeled.
Peter, G
[1]
- Commission of the European Communities, Ispra (IT). Joint Research Centre
Citation Formats
Peter, G.
CAMDYN: a new model to describe the axial motion of molten fuel inside the pin of a fast breeder reactor during accident conditions; CAMDYN (Cavity Material Dynamics). Ein neues Modell zur Beschreibung von Brennstoffbewegungen in Brennstaben von Schnellen Brutreaktoren wahrend eines Reaktorstorfalles.
France: N. p.,
1991.
Web.
Peter, G.
CAMDYN: a new model to describe the axial motion of molten fuel inside the pin of a fast breeder reactor during accident conditions; CAMDYN (Cavity Material Dynamics). Ein neues Modell zur Beschreibung von Brennstoffbewegungen in Brennstaben von Schnellen Brutreaktoren wahrend eines Reaktorstorfalles.
France.
Peter, G.
1991.
"CAMDYN: a new model to describe the axial motion of molten fuel inside the pin of a fast breeder reactor during accident conditions; CAMDYN (Cavity Material Dynamics). Ein neues Modell zur Beschreibung von Brennstoffbewegungen in Brennstaben von Schnellen Brutreaktoren wahrend eines Reaktorstorfalles."
France.
@misc{etde_10145385,
title = {CAMDYN: a new model to describe the axial motion of molten fuel inside the pin of a fast breeder reactor during accident conditions; CAMDYN (Cavity Material Dynamics). Ein neues Modell zur Beschreibung von Brennstoffbewegungen in Brennstaben von Schnellen Brutreaktoren wahrend eines Reaktorstorfalles}
author = {Peter, G}
abstractNote = {The new in-pin fuel motion model CAMDYN (Cavity Material Dynamics) describes the axial motion of both partially and fully molten fuel inside the pin of a fast breeder reactor during accident conditions. The motion of the two types of molten fuel and the imbedded fission gas bubbles is treated both before and after cladding failure. The basic modelling approach consists of the treatment of two one-dimensional flows which are coupled by interaction terms. Each of these flows is treated compressively and with axially variable flow cross sections. The mass and energy equations of both fields are solved explicitly using upwind differencing on a fixed Eulerian grid. The two momentum equations are solved simultaneously, using the convective momentum fluxes of the previous timestep. Both partially and fully molten fuel can move axially into a central hole extending to the plenum in the case of certain hollow pellet designs. The fuel temperature calculation includes the determination of a radial temperature profile. A simple conduction freezing model is included. After cladding failure, ejection into the coolant channel is modeled.}
place = {France}
year = {1991}
month = {Dec}
}
title = {CAMDYN: a new model to describe the axial motion of molten fuel inside the pin of a fast breeder reactor during accident conditions; CAMDYN (Cavity Material Dynamics). Ein neues Modell zur Beschreibung von Brennstoffbewegungen in Brennstaben von Schnellen Brutreaktoren wahrend eines Reaktorstorfalles}
author = {Peter, G}
abstractNote = {The new in-pin fuel motion model CAMDYN (Cavity Material Dynamics) describes the axial motion of both partially and fully molten fuel inside the pin of a fast breeder reactor during accident conditions. The motion of the two types of molten fuel and the imbedded fission gas bubbles is treated both before and after cladding failure. The basic modelling approach consists of the treatment of two one-dimensional flows which are coupled by interaction terms. Each of these flows is treated compressively and with axially variable flow cross sections. The mass and energy equations of both fields are solved explicitly using upwind differencing on a fixed Eulerian grid. The two momentum equations are solved simultaneously, using the convective momentum fluxes of the previous timestep. Both partially and fully molten fuel can move axially into a central hole extending to the plenum in the case of certain hollow pellet designs. The fuel temperature calculation includes the determination of a radial temperature profile. A simple conduction freezing model is included. After cladding failure, ejection into the coolant channel is modeled.}
place = {France}
year = {1991}
month = {Dec}
}