Numerical simulation of flow field and residence time of nanoparticles ...
It can be seen from Fig. 3 (d) and (e) that the central hydrogenoxygen premixed gas is injected into the combustion reactor with a small diameter at a high speed, and the annulus auxiliary gas is injected into the reactor at a low gas velocity synchronously, resulting in a high gas velocity in the center of the reactor and a low gas velocity around the reactor.