• Title/Summary/Keyword: General Purpose Program

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A Study on the Development of General Purpose Program for the Analysis of 3-D Fluid Flow by Using a General non-Orthogonal Grid System (일반 비직교좌표계를 사용하는 3차원 범용 유동해석 프로그램의 개발)

  • 허남건;조원국;김광호
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.18 no.12
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    • pp.3345-3356
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    • 1994
  • A general purpose program, TURBO-3D, for the analysis of 3-D fluid flow in complex geometry has been developed, which employs a standard $k-\varepsilon$ turbulence model and a general nonorthogonal grid system. For the purpose of verification of the program and testing the applicability, turbulent flows in an S-shaped diffuser and turbulent flows over an backward facing step are solved and compared with the earlier results. Comparison with the results by the STAR-CD program has been also made for the same flow configuration and grid structure. The agreements are excellent and hence the program has been verified. Since the present program is applicable only on limited flow phenomena and lacks the pre-and post processor, further improvements toward these directions are being made.

A Development of General Purpose Program NUFLEX for the Analysis of Heat/Fluid Flow (범용 열/유체 유동해석 프로그램 NUFLEX의 개발)

  • Hur N.;Won C.-S.;Son G.;Ryou H.-S.;Shin D.
    • 한국전산유체공학회:학술대회논문집
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    • 2004.10a
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    • pp.53-59
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    • 2004
  • A general purpose program NUFLEX for the analysis of 3-D heat/fluid flow in complex geometry with pre/post processor have been developed, which consists of a flow solver based on FVM and a dedicated pre/post processor. The program employs a general non-orthogonal grid system and solve laminar and turbulent (lows with standard and RNG $\kappa-\epsilon$ turbulence models. NUFLEX is capable of analysing two-phase flow with topologically complex interface, turbulent diffusion combustion, solidification problems and magnetic flow. For the purpose of verification of the program and testing the applicability, several practical problems are solved and compared with the available data. Comparison of the NUFLEX results with that by the STAR-CD program has been also made for the same flow configuration and grid structure.

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A Study on Surface Modeling of Hull forms for General purpose CAD program (범용 CAD 프로그램에서의 응용을 위한 선형 곡면화 방법론에 관한 연구)

  • 이준호;김동준
    • Journal of the Society of Naval Architects of Korea
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    • v.41 no.1
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    • pp.75-81
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    • 2004
  • In this study surface modeling .method with 3D curve net is proposed. For surface modeling, ship hull was divided into several parts, Generated surface was loaded general purpose CAD program through IGES file format, and the quality of generated surface model was checked by CATIA's internal function. Lastly it is tried to find a method for improving the accuracy of surface connection by using the blending method in CATIA and the result was discussed.

DEVELOPMENT OF GENERAL PURPOSE THERMO/FLUID FLOW ANALYSIS PROGRAM NUFLEX (범용 열/유체 유동해석 프로그램 NUFLEX의 개발)

  • Hur, Nahm-Keon;Won, Chan-Shik;Ryou, Hong-Sun;Son, Gi-Hun;Kim, Sa-Ryang
    • Journal of computational fluids engineering
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    • v.12 no.2
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    • pp.8-13
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    • 2007
  • A general purpose program NUFLEX for the analysis 3-D thermo/fluid flow and pre/post processor in complex geometry has been developed, which consists of a flow solver based on FVM and GUI based pre/post processor. The solver employs a general non-orthogonal grid system with structured grid and solves laminar and turbulent flows with standard/RNG $k-{\varepsilon}$ turbulence model. In addition, NUFLEX is incorporated with various physical models, such as interfacial tracking, cavitation, MHD, melting/solidification and spray models. For the purpose of evaluation of the program and testing the applicability, many actual problems are solved and compared with the available data. Comparison of the results with that by STAR-CD or FLUENT program has been also made for the same flow configuration and grid structure to test the validity of NUFLEX.

DEVELOPMENT OF GENERAL PURPOSE THERMO/FLUID FLOW ANALYSIS PROGRAM NUFLEX (범용 열/유체 유동해석 프로그램 NUFLEX의 개발)

  • Hur, Nahm-Keon;Won, Chan-Shik;Ryou, Hong-Sun;Son, Gi-Hun;Kim, Sa-Ryang
    • 한국전산유체공학회:학술대회논문집
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    • 2007.04a
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    • pp.87-90
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    • 2007
  • A general purpose program NUFLEX for the analysis 3-D thermo/fluid flow and pre/post processor in complex geometry has been developed, which consists of a flow solver based on FVM and GUI based pre/post processor. The solver employs a general non-orthogonal grid system with structured grid and solves laminar and turbulent flows with standard/RNG ${\kappa}-{\varepsilon}\;SST$ turbulence model. In addition, NUFLEX is incorporated with various physical models, such as interfacial tracking, cavitation, MHD, melting/solidification and spray model. For the purpose of verification of the program and testing the applicability, many actual problems are solved and compared with the available data. Comparison of the results with that by STAR-CD or FLUENT program has been also made for the same flow configuration and grid structure to test the validity of NUFLEX.

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Development of a General-Purpose Program for Automatic Finite-Element Modelling with Quadrilateral Finite Elements (사각형 유한요소 해석모델의 자동생성 프로그램의 개발)

  • Joun, M.S.
    • Journal of the Korean Society for Precision Engineering
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    • v.11 no.1
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    • pp.157-165
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    • 1994
  • A general-purpose program for automatic two-dimensional finite-element modelling with quadrilateral elements was developed in this research. The conventional looping method employed in the program was introduced with emphasis on a new splitting criterion and a splitting scheme developed for improving the method. Some application examples were given, which show versatility and applicability of the developed program.

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The development of general purpose robot language based on real time operating system (실시간 운영 체제를 이용한 범용 로봇 제어 언어의 개발)

  • 이덕만;오종환;이진수
    • 제어로봇시스템학회:학술대회논문집
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    • 1991.10a
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    • pp.18-23
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    • 1991
  • We need general developing environment to control robot with effect but less energy. So, software and hardware tools are very important. In this paper, we present a general-purpose robot control language and its implementation on Real Time O/S and VME bus system. The system runs on the VMEexec Real Time Operating System and robot program is written in the "C" language. The developed program is linked with the robot control C library io produce an executable image. Under the developed robot control environment, the user can write a general high-level control program leaving all the specific information about the robot in a robot specific file.ific file.

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A Study on the Development of the framework for the Cyber Ethic Educational Program for Adolescents (청소년을 위한 정보통신윤리교육 프로그램 개발 연구)

  • 장진경
    • Journal of the Korean Home Economics Association
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    • v.42 no.1
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    • pp.133-152
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    • 2004
  • This research aims at investigating the relationships among such variables as internet use, social-ethics, info-ethics, and the needs for info-ethic educational program. Another purpose of this study is to develop the framework for the cyber ethic educational program. For accomplishing the purpose, a survey questionnaire had been administered to 522 respondents online and of nine. The major statistical methods for data analysis were frequencey and t-test. The results of this analysis were as fellows: 1. Such variables as sex, the awareness of social law-ethics and social general ethics increased the awareness of info-ethics. 2. Variables that influenced the needs for info-ethic educational program were internet skills, social general ethics, and net info-ethics. The implications of these findings were discussed. Finally, the cyber ethic educational program was developed by the researcher band on the results of this study.

Effects of a Volunteer-Run Peer Support Program on Health and Satisfaction with Social Support of Older Adults Living Alone (지역사회 노인 자원봉사자를 활용한 독거노인 건강지킴이 프로그램이 독거노인의 건강상태와 사회적 지지 만족도에 미치는 효과)

  • Kim, Su-Hyun
    • Journal of Korean Academy of Nursing
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    • v.42 no.4
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    • pp.525-536
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    • 2012
  • Purpose: The purpose of the study was to evaluate effectiveness of a peer support program conducted by older community volunteers for older adults living alone. Methods: Thirty volunteers trained as peer supporters were matched with low-income, older adults living alone in the community on gender. Visits occurred on a weekly basis over the 12 month study period, and the volunteers provided peer support for health management to solitary older adults. Data were collected, before the start of the program and again 6 and 12 months after its initialization, from intervention and control groups regarding physical health, general health, mental health, depression, social functioning, and satisfaction with social support. Repeated measures ANOVA was used to analyze data. Results: By the end of the program, socially isolated older adults in the intervention group had significantly higher scores in physical health and general health than elders in the control group. Significant interaction effects between time and group were found for depression, social functioning, and satisfaction with social support. Conclusion: The peer support program undertaken by older community volunteers was effective in improving physical health, general health, depression, social functioning, and satisfaction with social support in socially isolated, low-income, older adults.

A study on the Preconditions of Space Program Validation of Healthcare Architecture for Application of BIM Technology (병원건축의 BIM적용을 위한 공간프로그램유효성평가의 전제조건에 관한 연구)

  • Seong, Joonho;Kim, Khilchae
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.19 no.2
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    • pp.19-30
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    • 2013
  • Purpose: The planning and design of hospital generally requires the participation and consultation of skilled experts since it has more complex space program than any other buildings. Therefore, the BIM systems for the planning of hospital have been tried continuously. The purpose of this study is to identify the precondition for space Program validation of healthcare architecture based on BIM, which is recently receiving wide attention. Method: For this study, United States, Australia and Finland's guidelines were analyzed among the description space program validation system in 14 overseas BIM Guidelines. And the propose precondition that can be applied to healthcare architecture from among these description of space program validation items, target, process etc for General building. Result: 1) spatial program validation is the following four evaluation phase. Step 1: Standard setting phase Step 2: BIM model accuracy assessment phase Step 3: space validation phase Step 4: Performance evaluation phase 2) The standards for the building elements at Standards Setting stage is considered to the standards for the architectural elements of General building. 3) Healthcare Architecture Area calculation method is considered to be reasonable that borrowing the area calculation standard of general architecture according to the UIA of international standards. However, Be proposed of measuring method that reflect the efficiency of the design process step-by-step area calculation method. The performance assessment indicators of reflect the Hospital uniqueness have to developed. And the research needs to be carried out continuously according to the purpose for healthcare architecture of feature-oriented. Implications: In this paper like to understanding that precondition of space program validation considering the BIM. As a result, understanding to condition about step of the evaluation, the evaluation standards. Is expected to keep the focus on the development of performance indicators that reflect the uniqueness of the hospital for the efficient evaluation of the Hospital building.