Experimental Study on Atomizing Performance of Nucleator Nozzle for Outdoor Snow Makers [PDF]
, 2023 This study investigates the atomizing law of the nucleator nozzles, which are an important atomizing device for domestic outdoor snow-making units. Air and water are used as the medium, and the Sauter mean diameter, atomization flux, and spray angle of ...
Hao Yahui +5 more
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Visualization Research on Flow Pattern of R290 Flow Boiling in Horizontal Micro-tubes [PDF]
, 2023 This study conducts visualization research on the flow pattern of R290 flow boiling in horizontal micro-tubes. The main flow patterns and influence factors of flow boiling heat transfer under different pipe diameters were analyzed, in addition to the ...
Jiang Jinzhou +2 more
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Synthesis, Separation and characterization of Fullerenes and Their Perchlorinated Fragments [PDF]
, 2000 回顾富勒烯科学的发展历程，不难看出宏量合成在其发展过程中的的重要地位。为了寻找高产率的宏量制备方法，人们进行了广泛的探索和深入的研究。经过多年的努力，富勒烯的合成已经有多种方法，但这些制备方法几乎都难以选择性地合成某一种富勒烯，所以分离仍是一个必要而关键的步骤。在富勒烯科学上，另一个至今仍令人迷惑不解的是富勒烯的形成机理，虽然，象C60、C70等都已经可以方便地商业购得，但其形成过程仍旧是一个值得推敲和争论的问题。人们提出了多种机理来解释富勒烯的形成，但没有一个能解释所有的实验现象 ...
谢索原
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Resistance characteristics of gas-liquid two-phase flow in stick venturi scrubbers [PDF]
, 2017 In order to grasp the resistance characteristics of gas-liquid two-phase flow in stick venturi scrubbers, based on the multiphase flow theory, a three-dimensional CFD model was established.
BU Ying-yong +4 more
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Particle flight behavior in hypersonic flame spraying [PDF]
, 2022 High velocity oxygen fuel (HVOF) coatings have high bonding strengths and compactness, which can improve the wear, corrosion, and fatigue resistance of an underlying matrix.
Feng ZHANG +3 more
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Gaoya dianqi, 2020 电晕是造成车顶绝缘子老化的主要因素之一。基于高速气流试验平台,试验研究了高速气流电晕环境下硅橡胶表面的憎水性分布,通过分析高速气流对电晕放电路径和放电电流的影响,讨论了憎水性分布发生偏移的原因。研究发现:高速气流环境下电晕强度较大时,憎水性丧失最严重的部位沿气流方向发生偏移。其原因是:当电晕放电沿针尖发展至针板间隙空间时,高速气流使得电晕放电路径沿气流方向偏转。气流速度一定时,离子所受电场力随电压的增大而增大,高速气流不易将其吹离针板间隙空间 ...
张晓青 +4 more
doaj
Study on moisture re-absorption characteristics and equilibrium prediction model of coal dust with different rank [PDF]
, 2023 Moisture re-absorption is an effective method to measure wettability of coal dust, but for different types of coal dust, there are difference in their hydrophilicity.
Fei WANG +5 more
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Investigation of behaviour of particle impact on material by impinging jet [PDF]
, 2017 颗粒冲击材料现象广泛存在于自然界以及工业领域中。应用实验测量与数值计算相结合的方法研究了颗粒射流冲击材料(304不锈钢)的磨损行为。考虑了颗粒粒; 径、运动轨迹、颗粒-壁面撞击点分布以及所导致材料物相结构变化。实验测试包括材料质量损耗、材料元素X射线衍射(XRD)分析、表面微观结构扫描电镜(; SEM)观察。对相应的颗粒射流冲击材料行为进行了数值计算,获得流场,颗粒场以及相应材料磨损。结果表明:颗粒射流冲击下颗粒运动轨迹与撞击点的分布不; 同,造成了材料样品表面磨损区域明显不同。颗粒 ...
周芳 +5 more
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Effects on Physicochemical and Dissolution Characteristics of Lentinus edodes Stem Powder by Jet Milling [PDF]
, 2023 In order to increase the utilization rate of shiitake mushroom by-products, the shiitake mushroom stem was crushed after superfine grinding with a jet mill, with coarse powder and 40 mesh powder as the control.
Ben NIU +7 more
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Study on Effective Distance of Supersonic Molecular Beam Injection System for HL-3 Tokamak [PDF]
Supersonic molecular beam injection (SMBI) technology, an indigenous fusion fueling technique in China, have been implemented widespread in international nuclear fusion devices.
XIAO Guoliang1, , CHEN Chengyuan1, LIU Shenghui2, YIN Jiao1, XU Ke1, 3, ZHU Yiren1, WANG Chiyu1, FENG Beibin1, ZHONG Wulv1,
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