Abstract This paper presents steady-state Eulerian thermal analysis of welds using moving coordinates that has been reported as computationally very efficien t method. This method requires much less CPU time than conventional Lagrangian method in which heat source moves in computational domain. This kind of Euleri an analysis can be done conveniently by using computational fluid dynamics code. To show the availability of this method, it is applied to a groove weld of a core shroud in a boiling water react...
英字タイトル:
High Speed Thermal Analysis on Moving Heat Source using CFD code

The cavity flow is driven by the main flow where the branched flow from main pipe in plants is stagnant. Heat of main flow is transported to the branch pipe and the thermal stratification is formed in the branch pipe. It is necessary that the locatio n of thermal stratification can be predicted in order to estimate the thermal fatigue of pipe wall. This study predicts the location of thermal stratification using numerical simulation, and showed the prediction has good agreement with experiments....
英字タイトル:
Numerical Simulation of Thermal Stratification in a Branch Pipe