Effect of swirl stator in central runner on flow field and bubble behavior in uphill teeming process
A swirl stator is proposed to install in the central runner during the uphill teeming process to generate swirling flow, for controlling the flow field state in the runner and the hump height in the mold. Water model experiments are carried out, in which the installation position in the central runner, the twist angle and the thickness of the stator are changed to study their influence on the flow field and the bubble behavior. The results show that the swirl stator placed in the central runner can produce swirling flow, and the proper position of the stator may lead to the highest gas-liquid interface level in the central runner. With the increases of the twist angle and the thickness of the swirl stator, the swirling flow is enhanced, more bubbles are forced to gather toward the center of the central runner and float upward more quickly. The maximum gas-liquid interface depth can be reduced by 46.3％ and 43.3％ respectively, compared with the case without the stator, and it also can reduce the hump height in the mold.
万方数据
维普
