空化

基于FLUENT软件的水力空化数值模拟

Numerical Simulation of Hydrodynamic Cavitation Based on FLUENT

初生空化数由韦伯数W和空泡相对膨胀速度M所组成。

The incipient cavitation number consists of Weber 's number W and M - relative velocity of cavitation bubble explosion .

水力空化降解罗丹明B研究

Hydrodynamic Cavitation Process for Degradation of Rhodamine B

超声空化预处理对尖晶石LiMn2O4性能的影响

Effects of ultrasonic cavitation pretreatment on the performance of spinel LiMn_2O_4

超声空化与Fenton试剂联合作用降解焦化废水中有机物的研究

Research on the decomposition of coking wastewater by ultrasonic cavitation combined with Fenton reagent

对比得出空化水射流结合Fenton能够有效地降解硝基苯。

So the techniques of cavitating water jet combining Fenton can degrade the nitrobenzene effectively .

FBM模型在栅中翼型云状空化流动数值计算中的应用

Application of a Filter-Based Turbulence Model for Cloud Cavitating Flows Around a Cascade Hydrofoil

本文提出了一个新的数学模型，用于预测高Reynolds数的二维紊流场中非恒定空化流的形成与发展过程及其内部结构。

A new mathematical model is proposed for predicating the dynamical behavior and inner structure of unsteady cavitation in a two-dimensional high-Reynolds number flow field .

空化泡崩溃时产生局部高温高压，从而导致晶粒细化，改善了Si元素的分布情况。

The collapsing cavities will result in instantaneous high temperature and high pressure in the local zone of the melt , resulting in refining grains and improving the distribution of Si element .

基于匀相流假设，建立了自然空化流动的多相流CFD模型，并在商业软件Fluent的框架下实现。

Based on homogeneous flow hypothesis , a multi-phase CFD model for natural cavitating flow was built and realized under the frame of general CFD software Fluent .

在由孔板产生的水力空化条件下对KI水溶液分解反应进行了实验研究。

The hydrodynamic cavitation generated through an orifice plate is used to decompose aqueous solution of KI in this work .

基于FLUENT软件，采用标准的k-ε模型和空化泡动力学模型对三种不同几何彤状的文丘里管中的空化流场进行了数值模拟，并将计算结果与实验结果进行了比较。

Based on the computational fluid dynamics software FLUENT , the cavitation flow fields in venturi tubes with different geometrical form were simulated adopting the standard k-epsilon model and cavitation bubble dynamics .

船研所空泡水筒背景噪声和ITTC标准螺旋浆空化噪声测量

The Measurements of Background Noise in SSSRI Cavitation and Cavitation Noise of ITTC Standard Propeller Model

采用功率超声的新方法，研究了超声波功率、频率、声强、变幅杆直径、溶液初始pH值以及空化气体种类等因素对降解甲胺磷农药废水的影响。

A new method of ultrasonic irradiation was used to study the effects of such factors as ultrasonic power , ultrasonic frequency , ultrasonic intensity , probe diameter , initial pH value of solution and cavitating gases type on degradation of methamidophos pesticide wastewater .

采用不同厚度、孔数和孔径的孔板作为水力空化发生装置，研究了水力空化对罗丹明B的降解效果，得出了孔板几何尺寸与空化处理效果的关系。

The orifice plates with various thickness , hole numbers and hole sizes were used as hydrodynamic cavitation generator to study the degradation effect of hydrodynamic cavitation of Rhodamine B , and the relationship between the geometry of orifice plate and the treatment effect of cavitation was obtained .

结合冲击断面形貌的SEM分析，认为AT/PP/PC三元复合体系中的增韧机制主要是界面脱粘、空化作用和AT对分散相的增强作用。

Based on the SEM analysis for impact morphology , it is considered that the interfacial voiding and the reinforcement effect of AT on the dispersed phase are the main toughening mechanisms in the ternary AT / PP / PC composites .

本文就空化效应在HIFU治疗中的应用，HIFU空化效应的预测和检测，以及HIFU空化效应的调节和控制作一综述。

This review will be addressed in the application of cavitational effects in HIFU treatment , prediction and detection of HIFU cavitational effects and regulation and manipulation of HIFU cavitational effects .

在此基础上，引进空泡群的体积函数z0（r），代替前文中的能量方程式，讨论相似流动体系中的空化状态相似性问题。

In this paper , we try to introduce the volume function of inceptive cavitation bubbles , z0 ( r ), instead of the energy equation used in the reference [ 1 ] , for discussing cavitation similarity problem in similar flow systems .

首先测量单泡声致发光Mie散射信号，研究空化气泡的半径变化，定性了解气泡的动力学特性，并用理论模拟的气泡半径-时间曲线和实验中的Mie散射信号比较。

Firstly , the motion procedures of bubbles are studied by measuring the Mie backscatter signal of single bubble sonoluminescence , and the dynamics characteristic of gas bubbles is derived qualitatively .

结果：分别在F1和F2点测得光击穿及空化气泡闭合与反跳时产生的声压脉冲信号；用石膏小球进行了碎石演示性实验，取得初步结果。

Results : We measured the pulse sound pressure from water broken down and bubble collapse near F 1 and F 2 respectively and made the simulated lithoclastic experiments for a small plaster ball .

结合正承担的国家自然科学基金项目声空化的物理与化学效应研究，介绍了采用RC振荡器来实现电导率精确测量的设计思路和声空化效应的检测原理。

Combining the natural science fund item " study sonic cavitation effect of physics and chemistry ", it introduces a design thought of adopting RC oscillation to realize the accurate measure of conductance and the examining theory of sonic cavitation effect .

结果表明：利用超声波空化作用产生的热点效应，油溶性引发剂偶氮二异丁腈（AIBN）裂解生成自由基可引发St的分散聚合反应。

The research results showed that owing to hot point effects of ultrasonic cavitations , the oil-soluble initiator 2,2 ' - azobisisobutyronitrile ( AIBN ) can produce free radical and initiate dispersion polymerization of styrene .

研究了不同Fenton试剂的用量、不同初始pH值、不同初始COD（cr）质量浓度、不同声能密度条件下，超声空化与Fenton试剂联合作用降解废水中有机物的效果。

The different degradation efficiency of ultrasonic cavitation combined with Fenton reagent is studied affected by such factors as the different Fenton reagent dosage , the initial pH value , the different initial COD_ ( cr ) concentration , and the different sound energy density .

制备的WO3系列产物的光催化活性为：微波辐射回流法＞超声空化-离心法>水热法或AAO模板法。

The photocatalytic activity of WO_3 synthesized by microwave radiating under circumfluence is the largest , and the one synthesized by cavitations in ultrasonic-centrifuging is larger than the one synthesized by hydrothermal or template in AAO .

本文使用高速摄影技术研究了HIFU场中空化泡群结构的空间分布特征、超声功率对空化泡群结构的影响、空化泡群结构的建立过程尤其是起始过程。

High-speed photography was used to study spatial distribution characteristics of cavitation bubble cloud structure in HIFU field , the influence of ultrasonic power to the structure , and its formation process with special attention to its inception process .

超声空化效应产生高能条件，促使O3空化泡中的O3直接快速的分解，产生自由基；

Promoted the direct and quick decomposition of O3 in the cavitation bubbles of O3 because of the high energy conditions produced by the ultrasonic cavitation effect , which resulted in the formation of free radicals ;

与IEC60193（1965）及其补充规定相比，本文论述、推导了IEC60193（1999）最终草案中增加或修改的几个内容的意义，它们是空化系数参考面的定义；

The paper discussed and deduced the sense of the added or modified contents of IEC60193 ( 1999 ) .

分别使用TA荧光法、碘释放法和电学法对28kHz分别与1.04MHz和1.7MHz组成的双频超声辐照系统的空化增强效应进行了研究。

Three methods ( TA fluorescence , iodine release and electrochemistry ) are used to study the enhancement effects of cavitation activity by two-frequency ultrasound irradiation of 28 kHz combined with 1.04 MHz and 1.7 MHz respectively .

用碘释放法对1.7MHz正弦调幅波（调制频率从1Hz到5kHz，调幅深度为95%）的超声空化产额进行了研究，观测到空化峰现象。

In the paper , the pulse cavitation peak of a sine modulation ultrasonic wave with frequency 1.7 ? MHz ( modulation frequency is from 1 ? Hz to 5 ? kHz and modulation percentage is 95 ? % ) with iodine release .

本文用摄影法，对垂直汇流旋涡空化模型，在流速为16.2m/s、21.4m/s、24.4m/s和28.8m/s四个流速下，随机地记录了约1200个空化长度。

By means of photograph , about 1200 lengths have been randomly recorded for the vortex cavitation model in vertical intersection flows when velocities are 16.2m / s , 21.4m / s , 24.4m/s and 28.8m/s respectively .