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55篇 您的检索式:作者名="Nyung"
    题名 作者 年代 出处 被引量
1A NUMERICAL ANALYSIS OF THE VENTILATION PERFORMANCE FOR DIFFERENT VENTILATION STRATEGIES IN A SUBWAY TUNNEL显示文摘An unsteady three-dimensional analysis of the ventilation performance is carried out for different ventilation strategies to find out a ventilation method with a high performance in a subway tunnel.The natural ventilation performance associated with a train-induced air flow in a subway tunnel is examined.The dynamic layering method is used to consider the moving boundary of a train in the current CFD method.The geometries of the modeled tunnel and the subway train are partially based on those of the Seoul subway.The effects of the structure of the ventilation duct and the geometry of the partitions on the ventilation performance are evaluated.The results show that the combined ventilation ducts (to be designed),and the partitioning blocks installed along the middle of tunnel (already in existences) are helpful for air exchange.This study can provide some guidance for the design of ventilation ducts in a subway system.HUANG Yuan-dong LI Chan KIM Chang Nyung 2012Journal of Hydrodynamics2012,24,2:8
2Mixing of two different electrolyte solutions in electromagnetic rectangular mixers显示文摘This study proposes a new electromagnetic rectangular mixer, and numerically examines the mixing characteristics of two different electrolyte solutions in the device under a uniform magnetic field. The mixer consists of a conduit with electrodes equipped on its top and bottom walls. The difference in the electric potentials applied to the sets of electrodes induces the current. The combination of the induced current and magnetic field yields Lorentz force, resulting in the fluid motion for pumping and mixing of the two different fluids. The numerical simulation is carried out with the use of commercial software CFX. The present numerical model is validated by an existing numerical work. The effect of different variables on mixing efficiency is investigated in many different cases with two different heights of the duct and various input voltages of the electrodes. The current simulation results indicate that the mixing performance can be enhanced by using multiple sets of electrodes and applying higher input voltages(absolute values) to the electrodes.Meimei WEN Chang Nyung KIM Yue YAN 2016Journal of Hydrodynamics2016,28,1:4
3DIRECT NUMERICAL SIMULATIONS OF THE DYNAMICS OF PARTICLES WITH ARBITRARY SHAPES IN SHEAR FLOWS显示文摘A fluid-structure interaction method based on the arbitrary Lagrangian-Eulerian method and a dynamic mesh method was developed to simulate the dynamics of a rigid particle in shear flows.In the method,the governing equations for the fluid flow and particle motion were sequentially solved in a two-way coupling fashion.The mesh system was deformed or re-meshed by the dynamic mesh method.The method was employed to simulate the dynamics of a single particle suspended in a flow channel and the dynamics of the particle were studied.The simulation results show that the angular velocity is not only a function of the inclination angle,is but also influenced by the aspect ratio yielding a hysteresis,while the angular velocity obtained from the Keller-Scalak model is a function only of the inclination angle and does not show a hysteresis.The present simulations clearly demonstrate that the Fluid-Structure Interaction(FSI) module is very stable,accurate and robust.CHOI Choeng Ryul KIM Chang Nyung 2010Journal of Hydrodynamics2010,22,4:4
4The effect of texture on ridging of ferritic stainless steel显示文摘Hyung-Joon Shin Joong-Kyu An Soo Ho Park Dong Nyung Lee 2003Acta Materialia2003,,16:2
5Mn absorption characteristics of Ti 2 O 3 inclusions in low carbon steels显示文摘Jae-Hyeok Shim Jung-Soo Byun Young Whan Cho Young-Joo Oh Jae-Dong Shim Dong Nyung Lee 2001Scripta Materialia2001,,1:2
6Analysis of deformation textures of asymmetrically rolled steel sheets 显示文摘Sang Heon Lee Dong Nyung Lee 2001Internation Journal of Mechanical sciences2001,43,9:1
7Strain energy release maximization model for evolution of recrystallization textures显示文摘Lee Dung Nyung 2000International Journal of Mechanical Science2000,42,:1
8The evolution of recrystallization textures from deformation textures显示文摘Lee Dong Nyung 1995Scrlpta Metallurgica et Materialia1995,32,10:1
9Estimation of the Magnetic Pressure in Tube Expansion by Electromagnetic forming 显示文摘Sung Ho Lee Dong Nyung Lee 1996Journal of Materials Processing Technology1996,,57:1
10显示文摘Ho Nyung Lee Myoung Ho Lim Yong Tae Kim T S Kalkur Sung Ho Choh 1998Jpn J Appl Phys1998,37,:1
11Effect of Carbon and Sulfur in Continuous Cast Strand on Longitudinal Surface Cracks 显示文摘Kyung -hyum KIM Tae-jung YEO KYU Hwan Oh and Dong Nyung Lee 1996ISIJ International1996,36,3:1
12The effect of random point excitation on the vibration level of plates显示文摘Myung Jin Choi Song Min Yoo Chang Nyung Kim 2002KSME International Journal2002,16,5:1
13A finite element analysis of electromagnetic forming for tube expansion显示文摘LEE Sung Ho LEE Dong Nyung 1994J of Engineering Materials and Technology1994,116,2:1
14The mechanism of abnormal grain growth in polycrystal- line diamond during high pressure-high temperature sintering 显示文摘Taek-Jung Shin Jeang-Ook Oh Kyu Hwan Oh Dong Nyung Lee 2004Diamond and Related Materials2004,13,3:1
15Accelerated spheroidization of cementite in high-carbon steel wires by drawing at elevated temperatures显示文摘Seung Eui Nam Dong Nyung Lee 1987Journal of Materials Science1987,,7:1
16Recrystallization of alumina dispersion strengthened copper strips显示文摘Su-Hyeon Kim Dong Nyung Lee 2001Materials Science and EngineeringA2001,,313:1
17The Evolution of Texture during Annealing of Electroless Ni-Co-P Depostits显示文摘Dong Nyung Lee Kang-Heon Hur 1999Scripta Materialia1999,40,12:1
18Estimation of the magnetic pressure in tube expansion by electromagnetic forming 显示文摘Lee Sung Ho Lee Dong Nyung 1996Journal of Materials Processing Technology1996,57,34:1
19Inoculated acicular ferrite microstructure and mechanical properties显示文摘Jung-Soo Byun Jae-Hyeok Shim Jin-Yoo Suh Young-Joo Oh Young Whan Cho Jae-Dong Shim Dong Nyung Lee 2001Materials Science & Engineering A2001,,:1
20Shear rolling and recrystalliza- tion textures of interstitial-free steel sheet 显示文摘LEE Sang Heon LEE Dnng Nyung Mater Sci Eng0,249,:1
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