Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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3D Unsteady Numerical Analysis to Design Defrosting System of Automotive Windshield Glass

자동차 전면유리의 제상시스템 설계를 위한 3차원 비정상 수치해석

  • Kang, Shin-Hyung (Department of Mechanical Engineering, Konyang University) ;
  • Lee, Jin-Ho (School of Mechanical Engineering, Yonsei University) ;
  • Byun, Ju-Suk (Songpa Technology Appraisal Center, Kibo Technology Fund)
  • 강신형 (건양대학교 기계공학과) ;
  • 이진호 (연세대학교 기계공학과) ;
  • 변주석 (기술보증기금 송파기술평가센터)
  • Published : 2007.09.01
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Abstract

The present research is based upon the numerical analysis of a car windshield in order to represent the optimum design guide to improve the overall defrosting performance of the system. First, the control factors that highly affect the defrosting performance of a car windshield are chosen and afterwards, the optimum variables of each control factor are extracted out to analyze its performance. The main control factors for this research are respectively, the air injection angle of a defroster nozzle, the height of a nozzle outlet, and the ratio of the width to the height of a nozzle outlet. For such case when the air inlet angle is relatively small, the flow near the vicinity of the inner face of a windshield tends to expand. As a consequence, the heat transfer rate through the windshield decreases. Also, the height of a nozzle outlet is recommended to maintain its size to minimum. However, when the ratio mentioned before is designed less than unity, the defrosting performance decreases.

Keywords

References

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