CAJ | 학술논문

建立了矩形翅片式热管的三维、稳态、自然及混合对流数学模型，利用Fluent软件对自然对流条件下不同翅片间距、翅片高度、翅片管的倾角以及混合对流条件下不同水平风速对翅片传热性能的影响进行了数值模拟。计算结果表明，在自然对流条件下，增大翅片间距、翅片高度及翅片与水平面的倾角均能提高翅片式热管的换热性能，在混合对流条件下随水平风速增加翅片的换热量及换热系数呈近似线性增大，水平风速对翅片的换热量和换热系数影响较大。
건립료구형시편식열관적삼유、은태、자연급혼합대류수학모형，이용Fluent연건대자연대류조건하불동시편간거、시편고도、시편관적경각이급혼합대류조건하불동수평풍속대시편전열성능적영향진행료수치모의。계산결과표명，재자연대류조건하，증대시편간거、시편고도급시편여수평면적경각균능제고시편식열관적환열성능，재혼합대류조건하수수평풍속증가시편적환열량급환열계수정근사선성증대，수평풍속대시편적환열량화환열계수영향교대。
This paper intends to use Gambit software to set up different mathematical models for the finned heat pipe, separately from the perspectives of three-dimensional, steady-state, natural and mixed convection. And then, it also uses Fluent software to do numerical simulation on the influence of different fin spacing, fin height and fin angle under the conditions of natural convection and different horizontal wind speed on heat transfer performance of fin under the conditions of mixed convection. The results show that, under the condition of natural convection, increasing the fin spacing, fin height and fin angle with the horizontal angle can improve the heat transfer performance of finned heat pipe; Under the condition of mixed convection, with the increase of horizontal wind speed, on which the horizontal wind speed has a greater influence, the heat transfer rate and heat transfer coefficient of fin present approximately linear increase.