西北大学学报（自然科学版）
西北大學學報（自然科學版）
서북대학학보（자연과학판）
JOURNAL OF NORTHWEST UNIVERSITY(NATURAL SCIENCE EDITION)
2009年
6期
940-943
,共4页
声场分布%声化学反应器%简正声波
聲場分佈%聲化學反應器%簡正聲波
성장분포%성화학반응기%간정성파
sound field%sonochemical reactor%normal sound wave
目的 研究侧面辐射声化学反应器的声场分布.方法 从三维声波方程出发,根据声化学反应器的声学边界条件,推导其中的声压表达式.结果 声场中声压由多种简正声波和高次同相振动叠加而成.结论 声压幅值的横向分布取决于声源的振动方式,纵向分布取决于反应容器的几何尺寸、声源振动频率、液体中的声速以及液体的深度等.近场区以高次同相振动为主,声压幅值随着纵向距离的增大而迅速衰减;远场区则以简正声波为主,声压幅值随着纵向距离的增大而起伏变化.
目的 研究側麵輻射聲化學反應器的聲場分佈.方法 從三維聲波方程齣髮,根據聲化學反應器的聲學邊界條件,推導其中的聲壓錶達式.結果 聲場中聲壓由多種簡正聲波和高次同相振動疊加而成.結論 聲壓幅值的橫嚮分佈取決于聲源的振動方式,縱嚮分佈取決于反應容器的幾何呎吋、聲源振動頻率、液體中的聲速以及液體的深度等.近場區以高次同相振動為主,聲壓幅值隨著縱嚮距離的增大而迅速衰減;遠場區則以簡正聲波為主,聲壓幅值隨著縱嚮距離的增大而起伏變化.
목적 연구측면복사성화학반응기적성장분포.방법 종삼유성파방정출발,근거성화학반응기적성학변계조건,추도기중적성압표체식.결과 성장중성압유다충간정성파화고차동상진동첩가이성.결론 성압폭치적횡향분포취결우성원적진동방식,종향분포취결우반응용기적궤하척촌、성원진동빈솔、액체중적성속이급액체적심도등.근장구이고차동상진동위주,성압폭치수착종향거리적증대이신속쇠감;원장구칙이간정성파위주,성압폭치수착종향거리적증대이기복변화.
Aim To study the sound field of sonochemical reactor which radiates sound from the side wall of the reactor. Methods Based on the acoustic wave eqation in three-dimensional, the sound pressure in the reactor was sought according to the acoustic boundary conditoin of the reactor. Results The sound pressure is superposed by normal sound wave and higher vibration in phase. Conclusion The transverse sound pressure amplitude lies on the vibration mode of the sound source. And the lognitudinal sound pressure amplitude lies on the geometrical dimension of the reactor, the vibration frequency of the source, the sound velocity of the liquid in the reactor and the liquid depth. In the field near the source, the higher vibration in phase is dominant in the field and the sound pressure amplitude decays rapidly as the lognitudinal distance increases. In the field far from the source, the normal sound wave is dominant in the field and the sound pressure amplitude changes up and down as the lognitudinal distance increases.
