• Title/Summary/Keyword: CFD

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Development of an Integrated S/W for Automated CFD Application (자동화된 CFD 적용을 위한 통합형 S/W의 개발에 관한 연구)

  • Kim Kiyoun;Kim Byoungsoo
    • 한국전산유체공학회:학술대회논문집
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    • 1998.11a
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    • pp.29-35
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    • 1998
  • In this paper, the on-going effort and progress for developing an integrated software for automated CFD application is described. As an outcome of the effort devoted so far, a new system, ICFDIT, is developed and introduced in this paper. The new system can be used to solve fluid dynamics problems in a convenient graphical environment, and it includes a pre-processor, a main-processor, and a post-processor. Usage of the system and examples are demonstrated, and some issues for improvement of the system are discussed.

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Information Technology and Computational Fluid Dynamics (정보통신기술과 전산유체역학)

  • Cho Kum Won;Park Hyungwoo;Lee Sangsan
    • Journal of computational fluids engineering
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    • v.6 no.3
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    • pp.51-56
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    • 2001
  • As IT(Information Technology) has been developing, an application engineering is advanced so quickly. Especially, CFD field that is influenced greatly by Computing Power is an outstanding example. In this paper, it says a research tendency of the KISTI Supercomputing Center that performs the CFD research based on IT. The representative researches are the National Grid Project, TeraCluster Construction and development and a supporting plan for Supercomputer users' parallelization.

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DEVELOPMENT OF THE PRE-PROCESSOR FOR CFD (CFD용 전처리장치 개발)

  • Kim, S.R.
    • Journal of computational fluids engineering
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    • v.18 no.2
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    • pp.72-77
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    • 2013
  • The Pre-processor program for CFD is being developed using wxWidgets and OpenGL libraries. This program can be run on both Windows and Linux operating systems. Undergraduate students and beginners can learn and use this very easily by menu and templates. Until now, structured mesh can be created in Cartesian or Cylindrical coordinates. This program will be used easily to make various type of meshes using templates.

The evaluative study of window defrost using Computational Fluid Dynamics (CFD를 이용한 Window Defrosting 평가)

  • Lee, I.S.;Im, H.N;Choi, J.W.
    • 한국전산유체공학회:학술대회논문집
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    • 2011.05a
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    • pp.179-182
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    • 2011
  • The purpose of this study is to evaluate a defrost model for the possibility of defrosting on wheelhouse window and the heat capacity if defrosting nozzle by using the commercial CFD solver FLUENT. A detailed simulation model has been created which contains the defrosting nozzle, window and the interior/exterior forced convection boundary. In this numerical study, the heat and mass transfer coupled during defrosting and investigated the defrost time for different hot gas temperature, external wind speed and temperature condition.

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Unsteady flow analysis around a circular cylinder using EDISON CFD (EDISON CFD를 이용한 원형 실린더 주위의 비정상 유동 해석)

  • Kim, Jae-Min;Jin, Seong-Ho;Kim, Taek-Gi;Kim, Mun-Sang
    • Proceeding of EDISON Challenge
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    • 2012.04a
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    • pp.61-64
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    • 2012
  • 원형 실린더 주위의 비정상 유동은 공학적으로 매우 중요한 유동 현상으로서 2차원 원형 실린더 주위의 비정상 유동 현상인 와류 흘림에 관해 수치적으로 계산해 보고 실제 유동 현상과 비교해 본다. 또한 실린더 주위 유동의 와류 흘림 현상이 공학적인 측면에서 어떠한 중요한 역할을 하는지 고찰해 본다.

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Calculation of Polarization Curves using CFD Analysis (CFD 해석을 통한 분극곡선 계산)

  • Im, Gyeong-Hwan;Lee, Gyeong-U
    • Proceedings of the Korean Institute of Surface Engineering Conference
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    • 2012.11a
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    • pp.75-75
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    • 2012
  • 전기도금 공정에서 분극곡선은 도금액의 전기화학적 특성을 나타낸다. 도금 실험에서는 도금액의 특성 및 실험 계획수립을 위해 필요하고, 도금 계산에서는 시뮬레이션의 경계조건으로 사용되기 때문에 분극곡선 측정은 실험 및 계산에 앞서서 수행되는 중요 과정이다. 이러한 분극곡선 측정을 실험으로 얻는 대신 CFD(Computational Fluid Dynamics) 해석을 통하여 계산으로 분극곡선을 얻는 방법을 시도하였고, 이 때 회전속도를 변수로 하여 유동과 분극곡선 사이의 관계를 분석하였다.

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CFD for Y-type Constant Flowrate Valve Design (Y형 세대별 정유량 밸브 개발에서의 CFD의 활용)

  • Kwon, U-Cheol;Lee, Byeong-Huee
    • 유체기계공업학회:학술대회논문집
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    • 2004.12a
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    • pp.488-491
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    • 2004
  • Numerical analysis of the three dimensional turbulent flow field in a complex valve shape is carried out to confirm the flow field whether the designed valve shape is good or not. The simulation of the incompressible flow in a constant flowrate control valve is performed by using the commercial code, FLUENT/UNS 6.0. The results of flow field show the designed valve has some problems, therefore these will be good data for new valve design.

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CFD Analysis of External Balance Strut Supporting Wind Tunnel Model (CFD를 이용한 풍동 시험 모델 지지대의 공력 특성 해석)

  • Kim C. W.;Park Y. M.;Lee J. Y.
    • 한국전산유체공학회:학술대회논문집
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    • 2003.08a
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    • pp.102-105
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    • 2003
  • The effect of the external balance strut on the wind tunnel model is investigated with simplified geometries. For this study, flat plate and elliptic wing are simulated with and without a cylinder. Pressure and wall shear stress distribution are analyzed to understand the effect of the cylinder.

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EDISON_CFD를 이용한 화성에서 운용 가능한 풍력터빈의 설계

  • Kim, Dong-Hyeon;Park, Sang-U;Jeong, Sang-Jun
    • Proceeding of EDISON Challenge
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    • 2016.03a
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    • pp.614-618
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    • 2016
  • 본 논문은 EDISON_CFD를 활용하여 화성에서 운용 가능한 풍력터빈에 대해 실험 및 개선 설계하였다. 본 연구에서는 화성의 중력 및 공기밀도 등 화성의 환경 데이터를 적용함으로써 풍력터빈의 형상을 새롭게 설계 하였다. 개선 설계는 기존의 풍력발전기 형상을 변형시키며 해석을 진행하였으며, 받음각과 형상에 따라 생성되는 토크를 확인하였다. 개선설계한 풍력터빈 모델은 단위 미터 당 약 8 W의 전력생산이 가능한 것을 확인하였다.

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Pump performance analysis of Axial Flow Blood Pump using CFD (CFD를 활용한 축류형 혈액펌프의 펌프 특성 해석)

  • 최승한;김동욱
    • Proceedings of the KAIS Fall Conference
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    • 2003.06a
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    • pp.288-290
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    • 2003
  • Artificial heart is divided by pulsation flow type and continuous flow type according to blood circulation pattern. Axial flow blood pump is a kind of continuous flow type artificial heart. Axial flow blood pump would be different pump performance according to impeller's shape and rotating velocity. Pump performance be able to compare by flow rate according to differential pressure and Impeller's rotating velocity. It confirms Impeller model of better efficiency according to compare Pump performance of axial flow blood pump using CFD with actual experiment result.

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