自然科学版
陕西师范大学学报(自然科学版)
物理学
矩形声化学反应器声场分布纵向共振研究
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李娟, 张明铎*, 马奭文, 王鲜艳
(陕西师范大学 应用声学研究所; 陕西省超声学重点实验室, 陕西 西安 710062)
李娟,女,硕士研究生,研究方向为声化学反应器.E-mail: ljkxmt860207@126.com.* 通信作者: 张明铎,男,副研究员.E-mail: zmduo@snnu.edu.cn.
摘要:
研究了矩形声化学反应器中声压发生纵向共振的条件.从基本的三维波动方程出发,通过计算得出纵向声压分布公式;利用Matlab仿真了纵向声压分布情况.结果表明:总声压幅值分布由简正声波和高次同相振动叠加而成.当液体深度取1/4波长的奇数倍时,高次同相振动对总声压幅值的影响可以忽略,总声压是各简正声波的叠加;满足4种条件时,声场分布发生纵向共振,类似单一平面波形成的驻波.
关键词:
声化学反应器; 声压幅值; 纵向共振
收稿日期:
2012-03-10
中图分类号:
O426.1
文献标识码:
A
文章编号:
1672-4291(2012)06-0033-04
基金项目:
国家自然科学基金资助项目 ( 10574086); 陕西省教育厅科研计划基金项目 ( 05JK165).
Doi:
The longitudinal resonance of sound fielddistribution in the rectangular sonochemical reactor
LI Juan, ZHANG Ming-duo*, MA Shi-wen, WANG Xian-yan
(Applied Acoustic Institute,Shaanxi Normal University,Shaanxi Key Laboratory of Ultrasonics, Xi′an 710062, Shaanxi, China)
Abstract:
The conditions that can create longitudinal resonance in the rectangular sonochemical reactor are studied. Based on the basic theory of three-dimensional wave equation, the equations of longitudinal pressure distribution are derived and simulated by Matlab. Our results show that the total sound pressure amplitude distribution is superposed by the normal sound wave and the higher vibration in-phase. When the liquid depth take an odd multiple of quarter wavelength, the effects of the higher vibration in-phase on the total sound pressure amplitude can be ignored.When four conditions are satisfied, the sound field distribution can create longitudinal resonance, which is similar to the standing wave formed by the single plane wave.
KeyWords:
sonochemical reactor; sound pressure amplitude; longitudinal resonance