인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Experiments were carried out on flow boiling in mini- and microchannels with non-uniform heating (channel width 30 mm, size of centrally located heater 3x3 mm 2 ) with smooth and porous heater surfaces. It has been established that for that surfaces, the dependencies of the critical heat flux and heat transfer coefficients behave similarly, but in the case of porous surface, the critical heat flux increases more strongly with the growth of mass flow, and the heat transfer coefficients are higher due to developed boiling. Instead of a slowly developing boiling crisis with a large bubble constantly sitting on a smooth heater, boiling on porous surface was replaced by intense formation of small bubbles sweeping away large one. As a result, large bubbles either pulsate intensely or do not form at all until the moment of “classical” crisis - the sudden formation of stationary one with a sharp increase in surface temperature. This is true for both types of surfaces. But in the case of a smooth surface, the regime of a pulsating large bubble prevails, and on porous surface it ceases to form until “classical” crisis. The frequency of small bubble formation is significantly greater when boiling on porous surface.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.