푸시풀 환기장치에서의 난류유동과 오염농도의 평가
Estimate of ?turbulent Flow and Contaminant Concentration in Push-Pull Ventilation System
지산간호보건전문대학논문집 1995년 13권 1호 p.271 ~ 284
KMID : 0613219950130010271
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조석호 ( ) - 지산간호보건전문대 산업위생과
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Abstract
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Estimate of turbulent flow and contaminant concentrationin push-pull ventilation system are studied numerically by the k-εturbulent model. The finite difference technique considered is upwind scheme and the solution algorithm used is SIMPLE
method.
Main results of the study are summarized as follows.
The larger push nozzle width produces a more gentle and uniform entrainment of ambient air. Velocity fields have influence on the distributions of temperature and contaminant concentration. Convection is the dominant transport mechanism near the
liquid
surface. The performance of push-pull ventilation system can be improved by means of entrainment of ambient air with as little turbulence as possible. Thus, the wide push nozzle should be used to maximize entrainment and minimize turbulence.
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KeyWords
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원문 및 링크아웃 정보
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등재저널 정보
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