Characteristics of sonoluminescing bubbles in aqueous solutions of sulfuric acid

被引：13

作者：

Kim, Ki Young ^{[1
]}

Byun, Ki-Taek ^{[1
]}

Kwak, Ho-Young ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Engn Mech, Seoul 156756, South Korea

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2006年 / 75卷 / 11期

关键词：

on/off pattern of luminescence; periodic doubling; sonoluminescence; sulfuric acid solutions;

D O I：

10.1143/JPSJ.75.114705

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new paradigm of sonoluminescence phenomena which displays alternating pattern of on/off luminescence pulse was observed recently in aqueous sulfuric acid solutions. A set of solutions of the Navier-Stokes equation for the gas inside a spherical bubble with heat transfer through the bubble wall permits to predict correctly characteristics of the sonoluminescing phenomena in the solutions. Calculation results of the minimum velocity of bubble wall, the peak temperature and pressure are in excellent agreement with the observed ones. Further, the calculated bubble radius-time curve displays alternating pattern of bubble motion as observed in experiment. The origin of sonoluminescence from gas bubble in sulfuric acid turns out to be blackbody emission with finite absorption.

引用

页数：7

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