• Title, Summary, Keyword: Pre.Post processor

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Developemtn of Vehicle Dynamics Program AutoDyn7(II) - Pre-Processor and Post-Processor (차량동역학 해석 프로그램 AutoDyn7의 개발(∥) - 전처리 및 후처리 프로그램)

  • 한종규;김두현;김성수;유완석;김상섭
    • Transactions of the Korean Society of Automotive Engineers
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    • v.8 no.3
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    • pp.190-197
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    • 2000
  • A graphic vehicle modeling pre-processing program and a visualization post-processing program have been developed for AutoDyn7, which is a special program for vehicle dynamics. The Rapid-App for GUI(Graphic User Interface) builder and the Open Inventor for 3D graphic library have been employed to develop these programs in Silicon Graphics workstation. A Graphic User Interface program integrates vehicle modeling pre-processor, AutoDyn7 analysis processor, and visualization post-processor. In vehicle modeling pre-processor, vehicle hard point data for a suspension model are automatically converted into multibody vehicle system data. An interactive graphics capabilities provides suspension modeling aides to verify user input data interactively. In visualization post-processor, vehicle virtual test simulation results are animated with virtual testing environments.

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Development of a Cell-based Long-term Hydrologic Model Using Geographic Information System(II) - Pre and Post Processor Development - (지리정보시스템을 이용한 장기유출모형의 개발(II) -전.후처리 시스템 개발-)

  • 최진용;정하우;김대식
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.39 no.2
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    • pp.103-112
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    • 1997
  • A CELTHYM(CEll-based Long-term HYdrologic Model), a pre-processor and a post-processor that can he integrated with geographic information system(GIS) were developed to predict the stream flow of a small agricultural watershed. Three kinds of routines, that are watershed boundary extraction routine(WBER), curve number calculation routine(CNR) and maximum available soil moisture calculation routine(MASR) composed pre-processor that was nicely interfaced with CELTRYM and GIS. Two kinds of routines, grapher and map composer composed post-processor that was well adapted CELTHYM output to chart making and GIS map making. The developed pre-post processor was useful for the GIS integration and spatial comprehension of the CELTHYM output.

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DEVELOPMENT OF A PRE_ AND POST_ PROCESSOR FOR STRUCTURAL ANALYSIS USING A RELATIONAL DATABASE MANAGING SYSTEM (관계형 데이터베이스를 이용하는 구조해석 전후처리기의 개발)

  • 이대희;이호재;이정재
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • pp.176-179
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    • 1998
  • In structural analysis using FEM or BEM, pre_ and post_processor is necessary pre_ and post_processor and analyzer use same structural model. But many other tasks related to structural design, such as optimization, design of layout, etc, do not share that model in spite of their resemblance of requiring data. So, a pre_ and post_ processor was developed using a relational database managing system. Developed system uses the DBMS as a data storage and interacts with it using SQL interface. In this way, many other tasks that uses same structural data can be developed.

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Development of a Pre/Post Processor for a General CFD Code (범용 3차원 유동해석용 전/후처리 장치의 개발)

  • Hur S. B.;Hur N.
    • Proceedings of the KSME Conference
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    • pp.67-70
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    • 2002
  • In the present study a pre/post-processor program has been developed to be used with a general CFD code. This program is capable of performing the basic functions of the pre/post-processing, which include mesh generation and post processing plots. Also through perspective projection, this program can be used to check the quality of generated mesh by moving around inside the mesh. The smoke visualization can be also performed with the present program to visualize the smoke behavior in the case of fire simulation. The examples of the program execution are given in paper.

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Interface Development for Pre and Post processor on EDISON Platform Simulation System (EDISON 플랫폼 시뮬레이션 시스템에서 전처리 및 후처리기 연계를 위한 인터페이스 개발)

  • Kwon, Yejin;Jeon, Inho;Seo, Jerry H.;Lee, Jongsuk R.
    • Journal of Internet Computing and Services
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    • v.21 no.1
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    • pp.103-110
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    • 2020
  • The EDISON is a platform that supports numerical analysis for problem solving in computational science and engineering. We provide a cloud service for users, and provide an environment to access and execution of the simulation service on the web. For now, the EDISON platform provides simulation services for eight applied field on computational science engineering. Users can check the numerical analysis result by web in the computational science and engineering platform. In addition, various services such as community activity with other researchers, and the configuration of simulation environment by user 's needs can be provided. A representative service of the EDISON platform is a web-based simulation service that performs numerical analysis for problem solving of various computational science and engineering. Currently, EDISON platform provides workbench simulation service. It is the web-based simulation execution environment, and result analysis to provide simulation regardless of various personal computing resource or environment in each numerical analysis. In this paper, we build an interface for pre and post processor that can be used in conjunction with the workbench-based simulation service provided by EDISON platform. We provide a development environment with interface that is implemented by applying a pre and post processor optimized for the simulation service. According to simulation and execution are performed by linking the new workbench-based simulation service to the pre and post processor.

An Implementation of the $5\times5$ CNN Hardware and the Pre.Post Processor ($5\times5$ CNN 하드웨어 및 전.후 처리기 구현)

  • Kim Seung-Soo;Jeon Heung-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.5
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    • pp.865-870
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    • 2006
  • The cellular neural networks have shown a vast computing power for the image processing in spite of the simplicity of its structure. However, it is impossible to implement the CNN hardware which would require the same enormous amount of cells as that of the pixels involved in the practical large image. In this parer, the $5\times5$ CNN hardware and the pre post processor which can be used for processing the real large image with a time-multiplexing scheme are implemented. The implemented $5\times5$ CNN hardware and pre post processor is applied to the edge detection of $256\times256$ lena image to evaluate the performance. The total number of block. By the time-multiplexing process is about 4,000 blocks and to control pulses are needed to perform the pipelined operation or the each block. By the experimental resorts, the implemented $5\times5$ CNN hardware and pre post processor can be used to the real large image processing.

The simulation system for ceramic drying processes (세라믹 건조공정 시뮬레이션 시스템)

  • 금영탁;김준한;오근호
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.11 no.3
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    • pp.120-126
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    • 2001
  • The simulation system for analyzing the ceramic drying process is developed. This system consists of 3 parts: pre-processor, analyzer, and post-processor. The pre-processor creates 3-dimensional ceramics, makes finite-element models, and prepares analyzers input. The analyzer computes temperature, moisture, residual stress, displacement, etc. during the drying process using the information about finite-element model, material property, and boundary condition provided by the pre-processor. In post-processor, the analyzers results are visualized to help designers evaluation of the drying of the ceramic.

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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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    • 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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DEVELOPMENT OF PRE/POST PROCESSOR PROGRAM FOR NUFLEX (NUFLEX의 전후처리장치 개발)

  • Kim, Sa-Ryang;Yeo, Jae-Hyun;Won, Chan-Shik;Hur, Nahm-Keon
    • 한국전산유체공학회:학술대회논문집
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    • pp.91-94
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    • 2007
  • A GUI based pre/post processor program, which is based on the MFC and OpenGL library in the Windows O/S, hee been developed for NUFLEX Using this program, users are able to generate and modify structured or unstructured grid geometries, set all the parameters for the solver, and observe the results of the simulation in graphic view by vector or scalar plots. The mesh geometry data can be imported from or exported to other programs by supporting functions for reading from and writing to CGNS data format files.

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Development of a Pre/Post Processor Program for the Analysis of the Passenger Flow based on Discrete Element Method(DEM) (DEM에 기초한 여객유동 해석을 위한 전/후처리 프로그램 개발)

  • Kim, Chi-Gyeom;Won, Chan-Shik;Hur, Nahm-Keon;Nam, Seong-Won
    • Proceedings of the SAREK Conference
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    • pp.475-480
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    • 2008
  • A pre/post processor program based GUI(Graphic User Interface) by using the MFC and OpenGL library in the Windows OS have been developed for the analysis of the passenger flow. Using this program, users are able to generate and modify the meshes of multi-storied subway station, set all the parameters for the solver, and obtain the results of the simulation such as transient passenger motions and passenger streak lines in 3-dimensional graphic view.

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