DOI QR코드

DOI QR Code

Optimization of Wind Louver Angle By CFD Simulation

  • Piao, Gensong (Department of Architecture, Chungnam National University) ;
  • Shon, Donghwa (Department of Architecture, Chungnam National University) ;
  • Kim, Youngwoo (Department of Architecture, Seoul National University) ;
  • Lee, Jungwon (Department of Architecture, Chungnam National University) ;
  • Choi, Jaepil (Department of Architecture, Seoul National University)
  • Received : 2016.08.31
  • Accepted : 2016.11.03
  • Published : 2016.12.30

Abstract

The objective of this study was to determine the optimal angle of a wind louver that would induce the optimal wind speed for indoor. Being controlled to have an optimized angle depending on the direction from which wind is blowing and the wind speed, the wind louver to be installed on the building envelop comes to create indoor comfort through a constant wind speed using the function that reduces the indoor wind speed by changing the angle when the wind speed is not lower than a certain level and makes wind flow into the room to the maximum when the wind direction is adverse to catching the wind or the wind speed is not higher than a certain level. To determine the optimal wind louver angle, a core-centered office building with cross-ventilation problems in the climate of Seoul, Korea, which experiences four distinct seasons, was considered for analysis in this study. A module 1 office space model was used for the CFD simulation to analyze the average indoor wind speed with respect to the outdoor wind speed (varied between 1 and 8 m/s), the wind louver angle, and the outdoor wind direction (varied between $0^{\circ}$ and $180^{\circ}$ in steps of $10^{\circ}$).

Keywords

References

  1. ASHRAE Standard 55-2010. (2010) Thermal environmental conditions for human occupancy.
  2. ISO 7730. (2005) Ergonomics of the thermal environment-Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria. 3rd ed. INTERNATIONAL STANDARD.
  3. Jun H, Park J, Rhee E. (2010) A Study on the Application of Wind Power system in Super High-Rise Buildings. Journal of the Architectural Institute of Korea Planning & Design, 8, 273-280.
  4. Kim T, Choi H. (2008) Effect of longitudinal grooves of the scallop surface on aerodynamic performance. The Korean Society of Mechanical Engineers Spring and Autumn Conference, 2419-2422.
  5. Koh G. (2015) Study of evaluation model for the analysis of the techniques of passive building. doctor's thesis. Seoul: Department of Architectural Engineering Graduate School of Konkuk University.
  6. Kum S. (2013) An analysis of classification & determinants of office building grade. Doctor's thesis. Seoul: Department of Architectural Engineering Graduate School of Konkuk University.
  7. Lee J, Kang J, Kim E, Byun N. (2015) A case study on biomimicry methodology for building and architectural design. Journal of the Branch Association of Architectural Institute of Korea, 17, 31-40.
  8. Montazeri H, Blocken B. (2013) CFD simulation of wind-induced pressure coefficients on buildings with and without balconies: Validation and sensitivity analysis. Building and Environment, 60, 137-149. https://doi.org/10.1016/j.buildenv.2012.11.012
  9. Nakanishi T, Nakamura T, Watanabe Y, Handou K, Kiwata T. (2007) Investigation of Air Flow Passing through Louvers. Komatsu Technical Report, 53, 1-9.
  10. Peren JI, Hooff T, Leite BCC, Blocken B. (2015) CFD analysis of cross-ventilation of a generic isolated building with asymmetric opening positions: impact of roof angle and opening. Building and Environment, 85, 263-276. https://doi.org/10.1016/j.buildenv.2014.12.007
  11. Zhao Y. (2012) China building energy status analysis and energy saving method. Master's thesis. Daejeon: Woosong University Architecture.