本文關(guān)鍵詞：處理多介質(zhì)界面的改進(jìn)型Front Tracking方法　出處：《高壓物理學(xué)報(bào)》2016年06期 　論文類型：期刊論文

  更多相關(guān)文章： 界面拓?fù)浣Y(jié)構(gòu) Front Tracking方法 界面捕捉

【摘要】：經(jīng)典Front Tracking方法采用示蹤點(diǎn)的連線表示界面,以示蹤點(diǎn)運(yùn)動(dòng)表現(xiàn)界面運(yùn)動(dòng),具有精度高等特點(diǎn),但在處理復(fù)雜界面拓?fù)浣Y(jié)構(gòu)變化時(shí)容易產(chǎn)生拓?fù)浠靵y導(dǎo)致計(jì)算無(wú)法繼續(xù)進(jìn)行。為此,對(duì)經(jīng)典Front Tracking方法進(jìn)行了改進(jìn),提出了一種新的數(shù)據(jù)結(jié)構(gòu)處理方法,以由示蹤點(diǎn)連線所組成線段的運(yùn)動(dòng)表現(xiàn)界面的運(yùn)動(dòng)過(guò)程,能夠較好地避免拓?fù)浠靵y情況,并且繼承了經(jīng)典方法的優(yōu)點(diǎn)。對(duì)改進(jìn)的Front Tracking方法進(jìn)行了程序編寫,采用兩個(gè)算例對(duì)新方法的可靠性加以驗(yàn)證,得到了較好的結(jié)果。
[Abstract]:The classical Front Tracking method uses the connection of tracer points to represent the interface. It shows the movement of the interface with the tracing point movement. It has the characteristics of high accuracy, but it is easy to generate topological confusion when dealing with the complex interface topology changes, which leads to the computation can not continue. Therefore, the classical Front Tracking method is improved, put forward a new processing method of data structure, the movement process by tracing line consisting of segments of the performance of the interface, can avoid the topological chaos, and inherited the advantages of classical methods. The improved Front Tracking method is programmed, and two examples are used to verify the reliability of the new method, and the better results are obtained.
【作者單位】： 中國(guó)工程物理研究院流體物理研究所;
【基金】：國(guó)家自然科學(xué)基金(11372294) 沖擊波物理與爆轟物理重點(diǎn)實(shí)驗(yàn)室基金項(xiàng)目(9140C670301150C67290)
【分類號(hào)】：O35
【正文快照】： 1引言多介質(zhì)界面的數(shù)值模擬和界面運(yùn)動(dòng)追蹤是近年來(lái)計(jì)算流體力學(xué)研究的熱點(diǎn)問(wèn)題,在材料科學(xué)、天體物理以及核物理等領(lǐng)域也有著廣泛應(yīng)用。目前,處理多介質(zhì)界面的數(shù)值模擬方法有Level-Set方法[1]、VOF方法[2]和Front Tracking(FT)方法[3]等。其中,FT方法是由James Glimm等人于20

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