|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A Parametric Study for High-Efficiency Gas-Liquid Separator Design显示文摘由于它的简单几何学和很少维护,一个煤气的液体离心分离器广泛地在工业被使用。这些隔板以紧缩的设计,更低的压力落下和更高的能力比过滤器,洗气器或催促的人有可观的优点。一个煤气的液体离心分离器是利用旋转运动引起由密度差别把液体与气体分开的离心力和低压力的一台设备。有效、可靠的分离为最佳操作被要求。这些隔板经常通过仔细与复杂流动现象包含了被联系的一根插头管子由于分开的液体的乘火车在不到山峰效率被操作。象一些分离空格,翼出口角度,到插头直径比率的入口,为分离效率的模型和象物理尺寸的一个函数的压力落下那样的设计参数不在文学是可得到的。这离开设计者与对很小除了已知的图案和试验,继续。现在的学习的目的是执行参量的研究为煤气液体的隔板得到更高的效率。参量的研究在 CFD 工具的帮助下被执行了由改变隔板空间的长度分析一个离心分离器的分离表演。最好的设计参数被分析在获得的结果之上基于,正切的速度,旋涡,全部的压力损失。从现在的学习,几次尝试被做改进常规离心分离器的表演。 | S.Nagdewe J.K.Kwoon H.D.Kim D.S.Kim K.M.Kwak Toshiaki Setoguchi | 2008 | Journal of Thermal Science2008，17，3： | 11 |
| 2 | Optimization Study of a Coanda Ejector显示文摘Coanda 效果长在太空应用程序被采用了改进各种各样的设备的表演。这效果是流动的能力没有分离,跟随一个弄弯的轮廓并且很好在液体的一口高速度喷气在驱逐者身体从一张嘴出现,跟随弄弯的表面并且拖进驱逐者的第二等的流动的驱逐者被利用了。在 Coanda 驱逐者,第二等的流动由于主要流动动量在驱逐者被拖。到第二等的流动的从主要流动的动量的转移通过狂暴的混合发生并且粘滞效果。第二等的流动然后被拖由狂暴砍当被大狂暴的紧张的坚持在整个驱逐者与主要流动混合时,驱逐者强迫。一个 Coanda 驱逐者的表演主要基于它多好拖第二等的流动和在驱逐者出口在二流动之间混合的数量被学习。现在的学习的目的是在 Coanda 驱逐者表演上调查各种各样的几何参数和压力比率的影响。各种各样的因素的效果,例如,系统性能上的压力比率,主要的嘴和驱逐者配置基于在其它地方定义的一个性能参数被评估了。Coanda 驱逐者的表演强烈取决于主要的嘴配置和压力比率。当它决定第二等的集体流动率的比率到主要集体流动率和混合长度,混合的层生长在优化 Coanda 驱逐者的表演起一个主要作用。关键词 Coanda 驱逐者 - 可压缩的混合层 - 拖的流动 - 混合长度 - 导致的流动 CLC 数字 | H.D.Kim G.Rajesh T.Setoguchi S.Matsuo | 2006 | Journal of Thermal Science2006，15，4： | 6 |
| 3 | A Study on the Gas-Solid Particle Flows in a Needle-Free Drug Delivery Device显示文摘Different systems have been used over the years to deliver drug particles to the human skin for pharmaceutical effect. Research has been done to improve the performance and flexibility of these systems. In recent years a unique system called the transdermal drug delivery has been developed. Transdermal drug delivery opened a new door in the field of drug delivery as it is more flexible and offers better performance than the conventional systems. The principle of this system is to accelerate drug particles with a high speed gas flow. Among different transdermal drug delivery systems we will concentrate on the contour shock tube system in this paper. A contoured shock tube is consists of a rupture chamber, a shock tube and a supersonic nozzle section. The drug particles are retained between a set of bursting diaphragm. When the diaphragm is ruptured at a certain pressure, a high speed unsteady flow is initiated through the shock tube which accelerates the particles. Computational fluid dynamics is used to simulate and analyze the flow field. The DPM (discrete phase method) is used to model the particle flow. As an unsteady flow is initiated though the shock tube the drag correlation proposed by Igra et al is used other than the standard drag correlation. The particle velocities at different sections including the nozzle exit are investigated under different operating conditions. Static pressure histories in different sections in the shock tube are investigated to analyze the flow field. The important aspects of the gas and particle dynamics in the shock tube are discussed and analyzed in details. | Md.Alim Iftekhar Rasel Md.Abu Taher H.D.Kim | 2013 | Journal of Thermal Science2013，22，4： | 1 |
| 4 | Effect of Si Content on Mechanical Properties of a Mo and V Free Low Alloy Cast Steel for Automobile Cold Pressing Die显示文摘象坚硬那样的重要性质的联合上的 Si 内容的效果,变硬除了力量增长的能力,和焊接能力系统地被调查为汽车冷压开发瞬间和 V 免费低合金铸钢死插入。作为die 为适用性的评估插入,机械性质在退火的 spheroidization ( SA )以后被测量,熄灭并且 tempering ( Q/T ),和变硬的火焰( FH )处理, respectively.The 开发了包含瞬间和 V 免费合金铸钢的 0.8%-1.6%Si 显示出的优秀矩阵加强效果,变硬能力,和焊接能力,为die 完成机械性质的工业标准插入。 | B.H.Kim J.S.Shin S.M.Lee B.M.Moon H.D.Kim S.Y.Ju O.Y.Choi | 2008 | Journal of Materials Science & Technology2008，24，3： | 1 |
| 5 | 查看详情显示文摘 | H.H.Bok M.G.Lee E.J.Pavlina F.Barlat H.D.Kim | | 0，，： | 1 |
| 6 | Study of Thermal and Hydraulic Performances of Circular and Square Ribbed Rough Microchannels Using LBM显示文摘The effects of roughness geometries and relative roughness height at the slip flow regime to investigate the thermal and hydraulic performances of microchannel have been considered in the present article using a thermal Lattice Boltzmann Method(TLBM).A two dimensional 9-bit(D2Q9)single relaxation time(SRT)model is used to simulate this problem.In micro-flows,the local density variation is still relatively small,but the total density changes,therefore,in order to account this density variation and its effect on the kinematic viscosityν,a new relaxation time proposed by Niu et al.[13]is used.The roughness geometry is modeled as a series of square and circular riblets with a relative roughness height from 0%to 10%of the channel height.The friction coefficients in terms of Poiseuille number(Pn)and the dimensionless heat transfer rate in terms of Nusselt number(Nu)have been discussed in order to analyze the roughness effects.The thermal-hydraulic performance(η)is calculated considering the simultaneous effects of thermal and fluid friction(pressure drop)at the slip flow regime at Knudsen number,Kn,ranging from 0.01 to 0.10 with other controlling parameters for both kind of geometries.The results have been compared with previous published works and it is found to be in very good agreement. | M.A.Taher H.D.Kim Y.W Lee | 2015 | Journal of Thermal Science2015，24，6： | 1 |
| 7 | Nozzle geometry variations on the discharge coefficient显示文摘Numerical works have been conducted to investigate the effect of nozzle geometries on the discharge coefficient.Several contoured converging nozzles with finite radius of curvatures,conically converging nozzles and conical divergent orifices have been employed in this investigation.Each nozzle and orifice has a nominal exit diameter of 12.7x10^(-3)m.A 3rd order MUSCL finite volume method of ANSYS Fluent 13.0 was used to solve the Reynolds-averaged Navier-Stokes equations in simulating turbulent flows through various nozzle inlet geometries.The numerical model was validated through comparison between the numerical results and experimental data.The results obtained show that the nozzle geometry has pronounced effect on the sonic lines and discharge coefficients.The coefficient of discharge was found differ from unity due to the non-uniformity of flow parameters at the nozzle exit and the presence of boundary layer as well. | M.M.A.Alam T.Setoguchi S.Matsuo H.D.Kim | 2016 | Propulsion and Power Research2016，5，1： | 1 |
| 8 | A Study of the Critical Nozzle for Flow Rate Measurement of High-Pressure Hydrogen Gas显示文摘用一张批评的嘴的集体流动率测量显示出 inviscid 理论的有效性,显示当雷纳兹数字在理想的煤气的法律下面增加,分泌物系数增加并且来临统一。然而,当批评的嘴测量集体流动时,在一个压力象氢那样的真实气体评价百锁,分泌物系数超过统一,和真实气体效果应该被考虑。现在的学习瞄准用 high-pressured 氢气体调查批评的嘴的流动特征。axisymmetric,可压缩的海军司烧计算被采用模仿批评的嘴流动,和一个充分含蓄的有限的卷方法习惯于 discretize 管理方程系统。真实煤气的效果被模仿考虑分子间的力量,它说明液化氢气体的可能性。计算结果与过去试验性的数据相比。为真实气体的分泌物的系数能在采用真实煤气的假设的统一下面适当地被改正,这被发现了。 | H.D.Kim J.H.Lee K.A.Park T.Setoguchi andong.ac.kr*****Department of Mechanical Engineering Saga University Honjo-machi Saga-shi Saga 840-8502 Japan S.Matsuo | 2007 | Journal of Thermal Science2007，16，1： | 0 |
| 9 | Optimization Study of the Efficient Spindle显示文摘在纱染的领域里,最通常采用的方法是使用在用一个穿孔试管做的一支锭子上叠的奶酪的一个包裹的包裹染的一种类型。锭子直到现在,没有考虑染液体的特征,被设计了,仅仅集中于引起象水平染的缺乏那样的许多问题的几何配置。改进染的水平并且为最有效的染过程发现适当锭子配置,这研究详细检验锭子流动地,用一个计算方法。在锭子内的流动特征与在孔,多孔的直径和流动的速度变化被调查了。结果证明通过锭子的流动的全部的压力被用来克服身体力量。从多孔的锭子的流动的特征能也被观察。从这研究基于结果,一种有效锭子配置为染水平被建议了。 | Y.D.Kim D.H.Chun M.S.Kang H.D.Kim | 2008 | Journal of Thermal Science2008，17，3： | 0 |
| 10 | Internal Flow Simulation of High-Performance Solid Rockets using a k-ω Turbulence Model显示文摘For technological reasons many high-performance solid rocket motors are made from segmented propellant grains with non-uniform port geometry. In this paper parametric studies have been carried out to examine the geometric dependence of transient flow features in solid rockets with non-uniform ports. Numerical computations have been carried out in an inert simulator of solid propellant rocket motor with the aid of a standard k-ω turbulence model. It was seen that the damping of the temperature fluctuation is faster in solid rocket with convergent port than with divergent port geometry. We inferred that the damping of the flow fluctuations using the port geometry is a meaningful objective for the suppression and control of the instability and/or pressure/thrust oscillations during the starting transient of solid rockets. | V.R.SANAL KUMAR H.D.KIM B.N.RAGHUNANDAN T.SETOGUCHI S.RAGHUNATHAN | 2005 | Journal of Thermal Science2005，14，2： | 0 |
| 11 | 韩国电力公司大型高压旋转电机绝缘状况分析的经验显示文摘本文中,以减少维修工作为目的,介绍了近来关于对KEPC0大型高压电动机定子绝缘状况进行分析研究的情况。因为这些定子绕组与其他类型的大型高压旋转电机的定子绕组相近,所以结果同样适用于大型发电机定子绕组。验证了为提高他们的使用寿命而用于监测和诊断他们的定子绝缘状况的各种方法和手段,进行了适当的维护并进一步评价了可行性和可操作性。本文还对现场检测结果进行了论证和讨论。本报告包括了托韩国电力系统不同的KEPC0电厂中应用所得到的经验。 | H.D.KIM | 2003 | 国外大电机2003，，1： | 0 |
| 12 | Computational Analysis of the Compressible Flow Driven by a Piston in a Ballistic Range显示文摘弹道的范围长在象高速度的影响工程,射弹气体动力学和航空弹道学那样的许多设计领域里被采用了,自从它能在很短的时间创造一个极其高压的状态。因为弹道的范围的操作包括许多复杂现象,每个过程应该为设备的表演改进详细被理解。在设备性能上有重要影响的主要进程之一是驱动程序气体的压缩进程。大多数在这个领域里可得到的研究几乎不详细讨论这现象并且因此在整个系统表演上缺乏它的效果的合适的理解。在现在的学习,计算分析被做了调查压缩的动态方面在一个弹道的范围的泵试管处理的液体并且估计它怎么影响弹道的范围的性能。获得的结果与可得到的试验性的数据被验证。以便评估系统性能,几个性能参数被定义。在泵试管之间增加的一个吃惊试管和弹道的范围的表演上的发射试管的效果是也学习的经分解。弹道的范围的性能能被泵试管和高压的试管参数和吃惊试管的增加的合适的选择显著地改进。 | G.Rajesh R.Mishra H.G.Kang H.D.Kim | 2007 | Journal of Thermal Science2007，16，4： | 0 |
| 13 | A Study of the Weak Shock Wave Propagating over a Porous Wall/Cavity System显示文摘现在的计算学习探讨在管宣传的冲击波的变细,用一个多孔的墙 / 洞系统。在现在的学习,在多孔的墙 / 洞系统上宣传的一个弱冲击波与计算液体动力学被调查。A 总数变化减少计划被采用解决不稳定,二维,可压缩,海军司烧方程。一个起始的冲击波的马赫数字从 1.02 ~ 1.12 在范围被改变。多孔的墙 / 洞系统的几种不同类型被测试调查被动控制效果。结果证明墙压力强烈在事件冲击波后面由于衍射和冲击波的思考过程波动。从结果,为隧道推动波浪的有效缓和,穿孔区域的长度应该足够地长,这被理解。关键词可压缩的流动 - 穿孔的墙 - 铁路隧道 - 冲击波 CLC 数字 O354. | H.D.KIM S.J.JUNG T.AOKI T.SETOGUCHI | 2005 | Journal of Thermal Science2005，14，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员