电子机械工程
電子機械工程
전자궤계공정
ELECTRO-MECHANICAL ENGINEERING
2011年
4期
5-8
,共4页
板式脉动热管%传热%仿真
闆式脈動熱管%傳熱%倣真
판식맥동열관%전열%방진
flat plate loop pulsating heat pipe%heat transfer%simulation
为了研究板式脉动热管的传热性能强化的方法,对原型和改进型两种不同板式脉动热管传热特性进行数值分析比较。基于VOF方法建立板式脉动热管汽液两相流动及相变传热三维非稳态数学模型,仿真得到不同加热功率条件下热管内流型演化和温度分布。仿真结果表明,改进型脉动热管在高功率阶段,整体等效热阻小于原型。
為瞭研究闆式脈動熱管的傳熱性能彊化的方法,對原型和改進型兩種不同闆式脈動熱管傳熱特性進行數值分析比較。基于VOF方法建立闆式脈動熱管汽液兩相流動及相變傳熱三維非穩態數學模型,倣真得到不同加熱功率條件下熱管內流型縯化和溫度分佈。倣真結果錶明,改進型脈動熱管在高功率階段,整體等效熱阻小于原型。
위료연구판식맥동열관적전열성능강화적방법,대원형화개진형량충불동판식맥동열관전열특성진행수치분석비교。기우VOF방법건립판식맥동열관기액량상류동급상변전열삼유비은태수학모형,방진득도불동가열공솔조건하열관내류형연화화온도분포。방진결과표명,개진형맥동열관재고공솔계단,정체등효열조소우원형。
To research the method of enhancing heat transfer of flat plate loop pulsating heat pipe,the article compares the heat transfer character of the original heat pipe and the improved one by numerical simulation.Based on the VOF（volume of fluid） method,a three-dimensional unsteady mathematical model was developed to describe the vapor-liquid two-phase flow and phase change heat transfer in the flat plate loop pulsating heat pipe.The two-phase flow pattern transition and the temperature distribution in the flat plate loop pulsating heat pipe under different heat load conditions was numerically investigated using the developed model.The result shows that the heat transfer character of the improved heat pipe can be enhanced under high heat load condition.
