水下超声速气体射流初期流场特性的实验研究  

Experimental study on flow characteristics at the initial injection stage of underwater supersonic gas jets

作　　者：施红辉[1] 汪剑锋[1] 陈帅[1] 董若凌[1] 

机构地区：[1]浙江理工大学机械与自动控制学院,浙江杭州310018

出　　处：《中国科学技术大学学报》2014年第3期233-237,共5页JUSTC

基　　金：国家自然科学基金(10672144);浙江省自然科学基金(Y107073)资助

摘　　要：实验研究三维水下超声速气体射流,重点分析气体射流初期气泡运动演化过程,对射流初期数值模拟结果做相关辅证.同时引进非圆整度概念,定量分析水下气体射流初期气泡运动及形态变化的某些规律,得到一些实验分析结果,为工程实践提供了有用的参考数据.An experimental research was carried out to study three-dimensional underwater supersonic gas jets. The evolutionary process of initial bubble motion of the gas jets was analyzed, providing some comparable evidence for the results of prior numerical simulation. In addition, quantitative data of the initial bubble motion and some laws of the morphological change of the underwater gas jets by introducing the concept of non-roundness were given. This paper is presented as a useful reference for engineering practice.

关 键 词：水下气体射流 气泡运动 动量射流 

分 类 号：O358[理学—流体力学]