【摘要】：針對(duì)尖前緣高溫?zé)峁芄こ淘O(shè)計(jì)與啟動(dòng)性能評(píng)估需求,基于描述堿金屬高溫?zé)峁軉?dòng)過程的"溫度鋒面"模型,建立了一種用于分析不規(guī)則外形且承受非均勻瞬態(tài)氣動(dòng)加熱的一體化尖前緣高溫?zé)峁軉?dòng)性能工程計(jì)算方法。該方法結(jié)合尖前緣氣動(dòng)加熱環(huán)境分布特點(diǎn)進(jìn)行計(jì)算節(jié)點(diǎn)劃分,采用熱管基本理論和局部能量守恒原理計(jì)算熱管溫度分布及"溫度鋒面"位置,實(shí)現(xiàn)尖前緣熱管啟動(dòng)過程的理論預(yù)測(cè)。同時(shí),采用均勻受熱圓柱熱管和尖前緣一體化熱管啟動(dòng)試驗(yàn)結(jié)果對(duì)計(jì)算方法進(jìn)行了驗(yàn)證。最后針對(duì)某尖前緣一體化高溫?zé)峁芙Y(jié)構(gòu)在氣動(dòng)加熱環(huán)境下的啟動(dòng)性能進(jìn)行計(jì)算分析,提出了減小尖前緣高溫?zé)峁軉?dòng)時(shí)間的可能方法和措施:尖前緣高溫?zé)峁軉?dòng)后等溫性良好,通過控制熱管總長、殼體厚度、工質(zhì)充裝量等設(shè)計(jì)參數(shù)或調(diào)整熱管初始溫度可進(jìn)一步縮短熱管啟動(dòng)時(shí)間。
[Abstract]:According to the requirement of engineering design and start-up performance evaluation of high temperature heat pipe with tip leading edge, the "temperature front" model is used to describe the starting process of alkali metal high temperature heat pipe. An engineering calculation method for the start-up performance of an integrated tip front high temperature heat pipe is established to analyze the irregular shape and withstand non-uniform transient aerodynamic heating. This method combines the characteristics of the pneumatic heating environment distribution of the tip leading edge to divide the calculation nodes. The heat pipe basic theory and the local energy conservation principle are used to calculate the temperature distribution of the heat pipe and the position of the "temperature front". The theoretical prediction of the starting process of the tip leading heat pipe is realized. At the same time, the calculation method is verified by the test results of uniform heating cylindrical heat pipe and tip front integrated heat pipe. Finally, the starting performance of a tip front integrated high temperature heat pipe structure under pneumatic heating environment is calculated and analyzed. The possible methods and measures to reduce the starting time of the tip front high temperature heat pipe are put forward. The isothermal property of the tip front high temperature heat pipe is good after starting, and the total length of the heat pipe and the shell thickness are controlled. The starting time of heat pipe can be further shortened by adjusting the initial temperature of heat pipe.
【作者單位】： 中國航天空氣動(dòng)力技術(shù)研究院;
【分類號(hào)】：V231

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