机械研究与应用
機械研究與應用
궤계연구여응용
MECHANICAL RESEARCH & APPLICATION
2014年
6期
84-86
,共3页
脉动热管%Vof方法%数值模拟%气液两相流
脈動熱管%Vof方法%數值模擬%氣液兩相流
맥동열관%Vof방법%수치모의%기액량상류
oscillating heat pipe%volume of fluid method%numerical simulation%gas-liquid two-phase flow
根据单环路脉动热管的结构特点及传热特性，建立了考虑热管内气液两相流动、传热传质和相变的数理模型。选取乙醇和纯水为工质，采用Vof方法对脉动热管进行数值模拟，研究了热管运行过程的气液相变。结果显示，脉动热管性能与气化潜热有关，工质气化潜热低的脉动热管更容易启动。
根據單環路脈動熱管的結構特點及傳熱特性，建立瞭攷慮熱管內氣液兩相流動、傳熱傳質和相變的數理模型。選取乙醇和純水為工質，採用Vof方法對脈動熱管進行數值模擬，研究瞭熱管運行過程的氣液相變。結果顯示，脈動熱管性能與氣化潛熱有關，工質氣化潛熱低的脈動熱管更容易啟動。
근거단배로맥동열관적결구특점급전열특성，건립료고필열관내기액량상류동、전열전질화상변적수리모형。선취을순화순수위공질，채용Vof방법대맥동열관진행수치모의，연구료열관운행과정적기액상변。결과현시，맥동열관성능여기화잠열유관，공질기화잠열저적맥동열관경용역계동。
According to the structural characteristics and heat transfer characteristics of single-loop oscillating heat pipe, a comprehensive mathematical model with consideration of gas-liquid two-phase flow, heat and mass transfer, phase change in the oscillating heat pipe is established.Selecting ethanol and water as the working fluid, and numerical simulating the oscilla-ting heat pipe by using Vof method, the gas-liquid phase change in the running process of oscillating heat pipe is studied.The results show that the heat transfer performance is related to the latent heat of vaporization, and the OHP with low latent heat of vaporization is easier to be started.
