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Validation and Application of OpenFOAM for Prediction of Livestock Airborne Virus Spread

공기 중 축산질병 확산예측을 위한 오픈폼 도입 및 검증

  • 노현석 ((주)넥스트폼) ;
  • 서일환 (서울대학교 그린바이오과학기술연구원 그린에코공학연구소) ;
  • 이인복 (서울대학교 농업생명과학대학 지역시스템공학과)
  • Received : 2013.12.24
  • Accepted : 2014.01.15
  • Published : 2014.01.31

Abstract

Accurate wind data is essential for predicting airborne spread of virus. OpenFOAM was used for computational fluid dynamics (CFD) simulation procedure which is under GNU GPL (General Public License). Using complex terrain, DEM (Digital Elevation Map) that was prepared from GIS information covering a research site is converted to a three dimensional surface mesh that is composed by quad and full hexahedral space meshes. Around this surface mesh, an extended computational domain volume was designed. Atmospheric flow boundary conditions were used at inlet and roughness height and was considered at terrain by using rough wall function. Two different wind conditions that was relatively stable during certain periods were compared in 3 different locations for validating the accuracy of the CFD computed solution. The result shows about 10 % of difference between the calculated result and measured data. This procedure can simulate a prediction of time-series data for airborne virus spread that can be used to make a web-based forecasting system of airborne virus spread.

Acknowledgement

Supported by : 기상산업진흥원

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