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The experimental study was carried out to analyze the influence of nozzle geometries on the injection rate of common rail injector in test bench by using EFS instantaneous fuel mass instrument, and the internal flow field and cavitation in nozzle holes with different geometries were researched with CFD code FIRE using two-phase flow model. The nozzle geometric parameters including the hole number,...
The gamma ray scattering energy spectrum detected by one detector was presented to distinguish the gas liquid two-phase flow regime of vertical pipe. The simulation geometries of the gamma ray scattering measurement were built using Monte Carlo software Geant4. Computer simulations were carried out with homogeneous flow, annular flow and slug flow. The results show that the scattering energy characters...
Enhanced radial transport in the plasma and the effect of ELMS may increase the ITER first wall heat loads to as much as 4 to 5 MW/m2 over localized areas. One proposed heatsink that can handle these higher loads is a CuCrZr hypervapotron. One concept for a first wall panel consists of 20 hypervapotron channels, 1400 mm long and 48.5 mm wide. The nominal cooling conditions anticipated for each channel...
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