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1 引 言超声喷泉的灼热现象导致了喷射超声空化场和空化集中概念的提出[1,2 ] 。本文作者还将这种物理新概念成功地应用于破穿冰块、解冻食品和促进苏铁种子萌发等实验中[3 5] 。进一步的研究还表明 ,从换能器辐射面开始 ,在向上喷射着的这种空化水(场 )的中轴线上均能引起灼
1 Introduction Ultrasonic fountain burning phenomenon led to jet ultrasonic cavitation field and cavitation concentration concept proposed [1,2]. The author also successfully applied this new concept of physics to experiments such as breaking ice, thawing food and promoting the germination of cycads [3-5]. Further studies have also shown that starting from the radiating surface of the transducer, the center axis of such cavitating water (field) jetted upward can cause burning