Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Mobile Augmented Reality based CFD Simuation Post-Processor

모바일 증강현실 기술을 활용한 유체시뮬레이션 후처리기 연구

  • 박상진 (한국과학기술정보연구원 가상설계센터) ;
  • 김명일 (한국과학기술정보연구원 가상설계센터) ;
  • 김호윤 (한국과학기술정보연구원 가상설계센터) ;
  • 서동우 (한국과학기술정보연구원 가상설계센터)
  • Received : 2019.01.22
  • Accepted : 2019.04.05
  • Published : 2019.04.30
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Abstract

The convergence of engineering and IT technology has brought many changes to the industry as well as academic research. In particular, computer simulation technology has evolved to a level that can accurately simulate actual physical phenomena and analyze them in real time. In this paper, we describe the CFD technology, which is mainly used in industry, and the post processor that uses the augmented reality which is emerging as the post-processing. Research on the visualization of fluid simulation results using AR technology is actively being carried out. However, due to the large size of the result data, it is limited to researches that are published in a desktop environment. Therefore, it is limitation that needs to be reviewed in actual space. In this paper, we discuss how to solve these problems. We analyze the fluid analysis results in the post-processing, and then perform optimizing data (more than 70%)to support operation in the mobile environment. In the visualization, lightweight data is used to perform real-time tracking using cloud computing, The analysis result is matched to the screen and visualized. This allows the user to review and analyze the fluid analysis results in an efficient and immersive manner in the various spaces where the simulation is performed.

엔지니어링과 IT기술의 융합은 학문적 연구뿐 아니라 산업에도 많은 변화를 가져오고 있다. 특히 컴퓨터 시뮬레이션 기술은 실제 물리현상을 정확히 모사하고 실시간으로 분석할 수 있는 수준으로 발전했다. 본 논문에서는 산업에서 주로 활용되는 유체해석(CFD: Computational Fluid Dynamics) 기술과 최신 가시화 기술로 떠오르고 있는 증강현실을 활용한 후처리기에 대해 기술한다. 유체해석 시뮬레이션 결과를 증강현실기술을 활용하여 가시화하는 연구가 활발히 진행되고 있으나, 결과 데이터의 사이즈가 큰 특성상 데스크탑 환경에서 기사화하는 연구에 한정되어 실제 공간에서 검토가 필요한 유체해석 시뮬레이션분야에서 활용이 제한된다. 본 논문에서는 이러한 문제점을 해결하기 위한 방법에 대해 논의한다. 이를 위해 후처리 과정에서는 유체해석결과를 분석한 후, 모바일 환경에서 원활한 구동을 지원하기 위한 데이터 경량화(70% 이상) 작업을 수행하며, 가시화 과정에서는 경량화된 데이터를 이용하여 클라우드 컴퓨팅을 활용한 실시간 추적 작업과 함께 유체해석결과를 화면에 정합하여 가시화 한다. 이를 통해 사용자는 시뮬레이션이 수행된 다양한 공간에서 유체해석결과를 효과적이고 몰입감있게 검토/분석 할 수 있다.

Keywords

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Fig. 1. Proposed System

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Fig. 2. Analysis of the CFD result

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Fig. 3. Optimization of the CFD result

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Fig. 4. Generation visualization data

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Fig. 5. Example of the optimizing streamline

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Fig. 6. Method of cloud based parallel method

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Fig. 7. Example of optimization

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Fig. 8. Demonstration of implementation

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Fig. 9. Mobile based AR

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Fig. 10. Wearable device based AR

Table 1. Related works

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Table 2. Mobile Device based scenario

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Table 3. Wearable device based Scenario

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