The Drag Reduction and Convective Heat Transfer Characteristics of Two-Phase Flow with Polymer Additives

고분자 물질 첨가에 의한 2상 유동의 마찰 항력 감소와 대류 열전달 특성

  • 이동상 (명지대학교 대학원 기계공학과) ;
  • 김재근 (신성대학 자동차 계열) ;
  • 차경옥 (명지대학교 기계공학과)
  • Published : 2000.04.20

Abstract

This experimental study was conducted to figure out the drag reduction and convective heat transfer in vertical downward two-phase flow with polymer additives. The drag reduction effect were analyzed by using the difference of the pressure drop between the flow with polymer additives and without it. Experimental results show that the pressure drop with polymer additives is less than the pressure drop without polymer in vertical downward two-phase flow. And the convective heat transfer has decreased with increasing the polymer concentration in vertical downward two-phase flow.

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