Experimental and numerical investigations were carried out with a water bath and a low-melting-point metal bath to understand the cavity formation behavior induced by gas blowing from a top lance set in the near field of the bath surface. Cavity formation behavior was classified by the critical gas velocity for droplet formation. The depth of the cavity formed in the near field of the gas jet was reasonably predicted by numerical simulation. A new empirical equation for the cavity depth as a function of a modified Froude number was proposed.

Fullsize Image

中文翻译：

---

顶枪吹入低熔点金属熔池引起的切入深度的预测

用水浴和低熔点金属浴进行了实验和数值研究，以了解由浴表面附近区域中的顶部喷枪吹气引起的空穴形成行为。空穴形成行为通过液滴形成的临界气体速度进行分类。通过数值模拟合理地预测了在气体射流的近场中形成的腔的深度。提出了一种新的经验公式，用于计算腔体深度与修正的Froude数的关系。

全尺寸图片