- 更多网络例句与空化相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Large eddy Simulation is used to simulate the flow field and cavitation on an Orifice Energy dissipator. The characteristics of cavitation was analyzed. The calculated and the measured pressure distribution and the cavitation were in agreement.
采用大涡模拟方法对消能孔板流场及空化现象进行了数值模拟,研究分析了消能孔板空化特性,计算所得的压力分布及空化特性与减压模型实验结果进行了比较,二者符合良好。
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From the results obtained in the study, the following conclusions can be made:The methylene blue and spectrophotometer method can capture the free radicals generated successfully. This is an effective way to measuring the free radicals quantitatively in cavitation, moreover it is easy to fulfill.The intensity of cavitation increases with reduction in the cavitation number. But the different mechanism of various enhancive processes (chemical and physical processes) results in different effect by cavitation number.The effect of operating parameters, such as inlet pressure, temperature and time on cavitation indicate that optimum operating conditions exist at the cavitation enhancive effect is maximum.It is important to optimize the structure of hydrodynamic cavitation reactor for achieving a desired effect. A reasonable geometric parameter can promote the enhancive effect for a fixed hydrodynamic condition.Ventilating appropriate gas to cavitating flow can increase cavitational intensity and hence promote the enhancive effect of hydrodynamic cavitation.
研究结果表明:亚甲基蓝分光光度计法,能够成功地捕捉到水力空化产生的羟自由基,是定量检测空化自由基简便易行的有效方法;空化程度随空化数的减小而增强,但对于不同的强化过程,因其强化机理不同,故空化数对强化效应的影响也不同;水力空化系统的压力、温度及时间等操作参数对空化强化效应的影响规律表明:在适宜的操作条件下可产生最佳的空化强化效果;空化发生器结构的优化设计是保证空化强化效应的重要前提,在一定的水力学条件下,合理的结构尺寸可以增强空化作用效果:往水流中适量加入干扰气体能够提高空化强度,增强空化强化效果。
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The average depth of erosion on gritstone for cavitation water jets is 2 times as much as common water jets, and its mass erosion is 7 times as much as common water jets, and its diameter of erosion is 2.3 times as much as common water jets.
对于含有空泡的磨料射流,围压增加空化噪音减少,泵压增加空化噪音增加;有效靶距直径比增加,对花岗岩的冲蚀深度与冲蚀质量存在一最优有效靶距直径比;在最佳冲蚀时间下,较纯水空化射流工作效率提高2倍。
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In order to clarify the flow characteristics of supercavitation area, supercavitation flow velocity distribution around a hydrofoil are addressed along with both high-speed visualization and LDV measurements.
为了了解超空化流动区域的流动特性,观察了超空化流动区域的流动结构;采用LDV的方法测量了超空化发生时绕水翼的速度分布大小。
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Pressure characteristics and condition of cavitation incipience were analyzed.
在沿固体表面法线方向减速运动阶段,由于液体离开固体表面的惯性使得液体与固壁面间产生低压,当固体表面运动加速度超过某个临界值时,液体因压力低于空化临界压力而发生空化,空化与固体表面结构及液体流动特性有关。
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With a cavitating model established for N-S equations from cavitation theory, cavitation evolution on the surface of a hydrofoil is developed: incipience of cavity, cavity growing, reentrant flow appearing, cavity retracting, shedding and smaller broken cavities moving downwards with the main flow.
根据空化流原理,建立了基于N-S方程求解的空化模型,利用这个模型计算了空化在翼型表面的演化过程:初生、长大、形成回注水流、空穴回缩、减小、脱落,以及小空泡随主流向下游运动的现象。
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In order to research the mechanism and effect of hydrodynamic cavitational enhancement, find the basic rule which affected it. The work has been carried out as following.First, an effective equipment of hydrodynamic cavitition is built. Second, we find a new method to capture the free radicals, which is used to measure the amount of hydroxyl. And its correlation with the intensity of cavitation has been studied aims at analyzing the effect of various factors on the yield of hydroxyl, achieving the optimum hydrodynamic cavitation conditions. Then, hydrodynamic cavitation is used to the degradation of organic wastewaters containing rhodamine B, and sterilization of biologic wastewaters containing enterobacter aerogenes. Finally, numerical simulation based on computer fluid dynamic has been made for verifying the effect of hydrodynamic cavitation theoretically.
为了探求水力空化强化效应的机制和效果,寻求影响空化强化效应的基本规律,本论文就此开展了如下研究工作:设计建立实用有效的水力空化实验装置;建立空化自由基捕捉新方法,并以此定量检测水力空化羟自由基,研究空化羟自由基产量与空化强度的关系,研究各种因素对空化自由基产量的影响,以寻求最佳空化强化条件;在此基础上,进行了水力空化对含罗丹明B有机废水降解处理、对含产气肠杆菌生物污水杀菌处理研究,实验检验水力空化的强化效果;根据计算流体力学理论对空化流场进行数值模拟,从理论上验证水力空化的发生效果。
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How to measure and analyze the phenomena in property of pump and hydroturbine is one of the most important field in cavitation and erosion research.
影响水泵与水轮机使用寿命与性能的主要问题是空化空蚀现象,在现场监测与分析水泵与水轮机的空化状态是空化空蚀研究的重要领域。
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A high-speed camera is used to visualize the flow structures,and Laser Doppler Velocity is employed for velocity measurement.The osculations are conducted on the two-dimensional hydrofoil section,based on a single-fluid model of the cavitation:the liquid/vapor mixture is considered as a homogeneous fluid whose eompsition is regulated by mass tranfer equation.The RNG k-ε turbulence model with modified eddy viscosity coefficient is used for computing,and the coefficient is related to the vapor and liquid densities in cavitated regions for simulating the cavitating flow.
实验采用高速录像技术观察了云状空化随时间的结构变化,应用 LDV 测量了云状空化条件下翼型周围的速度分布;采用 N-S 方程和基于空泡动力学方程的空化模型计算了绕水翼云状空化流场,湍流模型采用了 RNG k-ε方程,为了改善空化流动的计算精度,引入了一种与空化区域水汽相密度相关的系数,对湍流涡黏性系数进行了修正。
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The osculations are conducted on the two-dimensional hydrofoil section,based on a single-fluid model of the cavitation:the liquid/vapor mixture is considered as a homogeneous fluid whose eompsition is regulated by mass tranfer equation.The RNG k-ε turbulence model with modified eddy viscosity coefficient is used for computing,and the coefficient is related to the vapor and liquid densities in cavitated regions for simulating the cavitating flow.
实验采用高速录像技术观察了云状空化随时间的结构变化,应用 LDV 测量了云状空化条件下翼型周围的速度分布;采用 N-S 方程和基于空泡动力学方程的空化模型计算了绕水翼云状空化流场,湍流模型采用了 RNG k-ε方程,为了改善空化流动的计算精度,引入了一种与空化区域水汽相密度相关的系数,对湍流涡黏性系数进行了修正。
- 更多网络解释与空化相关的网络解释 [注:此内容来源于网络,仅供参考]
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cavitation damage:空化损坏
cavitation coefficient 气蚀系数 | cavitation damage 空化损坏 | cavitation effect 空化效应
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blade shoulder cavitation:叶肩空化
blade face cavitation 叶面空化 | blade shoulder cavitation 叶肩空化 | blade tip cavitation 叶尖空化,叶梢空化
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vaporous cavitation:含汽空化
unsteady cavitation 不定常空化 | vaporous cavitation 含汽空化 | vortex cavitation 旋涡空化
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desinent cavitation:消失空化
desinent cavitation 消失空化 | face cavitation 叶面空化,面空化 | foam cavitation 泡沫状空化,泡沫空化
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burbling cavitation:扰流空化
boundary cavitation 边界空化 | burbling cavitation 扰流空化 | choking cavitation 阻塞性空化
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cavitating propeller:空化螺桨
"空化水翼","cavitating hydrofoil" | "空化螺桨","cavitating propeller" | "空化","cavitation"
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cavitating propeller:空化螺旋桨
空化衡准||cavitation criteria | 空化螺旋桨||cavitating propeller | 空化试验||cavitation test
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cavitating body:空化体,空泡体
"止索栓","cavil" | "空化体,空泡体","cavitating body" | "空泡体","cavitating body"
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cavitating hydrofoil:空化水翼
"空泡体","cavitating body" | "空化水翼","cavitating hydrofoil" | "空化螺桨","cavitating propeller"
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fully cavitating propeller:全空化螺桨(高速艇)
肥型船 full-shaped boat | 全空化螺桨(高速艇) fully cavitating propeller | 充分发展空化,全空化 fully developed cavitation