The multi-material cyclic plasticity model is applied, via a three-dimensional finite element analysis of a welded T-piece header-branch connection, to predict the effects of cyclic internal pressure and small amplitude thermal fluctuations.
For the lower panel, local flow distributions and pressure drop values at each header and branch of the tube are obtained by applying design coolant flow rate.
Local flow distributions and pressure drop values at each header and branch of the tube are obtained by applying three different coolant flow rates.
The present work investigated the phase distribution of a gas liquid flow in five parallel micro-T channels oriented horizontally and examined the flow behavior in header and branch channels, all with trapezoidal cross-section.
The hydraulic diameters of the header and the branch channels were 0.611 mm and 0.438 mm, respectively.
Wang and Yu[5] developed a numerical model to calculate the isothermal flow distribution using mass and momentum equations at each branch of the header system.
The cause for this problem is that the T_GMAP CalDB files from the beginning have been indexed with GRATING = LETG in the file headers and thus in the HRC branch index.
This paper describes a case with observed creep cavitation and cracking in a branch weld of a X20 steam header that was replaced after 135,000 service hours.
The test section consists of a horizontal header with 3 and 6 vertically downward replaceable branching conduits.
