本文關(guān)鍵詞：高壓透平導(dǎo)葉的DDES模擬　出處：《工程熱物理學(xué)報(bào)》2016年10期 　論文類型：期刊論文

  更多相關(guān)文章： LS DDES模擬 壓力波尾跡相互干涉 激波尾跡相互干涉

【摘要】：本文通過(guò)DDES(Delayed Detached Eddy Simulation)方法分別研究了絕熱壁面條件和等溫壁面條件下跨音高壓透平導(dǎo)葉LS89中的基本流動(dòng)現(xiàn)象.首先將DDES計(jì)算結(jié)果和實(shí)驗(yàn)數(shù)據(jù)以及文獻(xiàn)中的LES計(jì)算結(jié)果進(jìn)行了對(duì)比,證明了DDES方法計(jì)算的可靠性以及對(duì)于非定常流場(chǎng)精細(xì)結(jié)構(gòu)的出色分辨力;而后本文研究了跨音速高壓透平導(dǎo)葉LS89通道內(nèi)的激波、尾跡、邊界層等流動(dòng)現(xiàn)象以及激波和尾跡的相互干涉,并對(duì)比了兩種不同壁面?zhèn)鳠釛l件對(duì)流動(dòng)的影響。
[Abstract]:In this paper , the basic flow phenomena in a transonic high pressure turbine guide vane LS89 under adiabatic wall conditions and isothermal wall conditions are studied by means of the DDES ( Delayed Detached Eddy Simulation ) method . First , the results of DDES are compared with the experimental data and LES calculation results in the literature . It is proved that the reliability of the DDES method and the excellent resolution for the fine structure of unsteady flow field are proved . Then , the flow phenomena of shock wave , wake , boundary layer and so on in the transonic high pressure turbine guide vane LS89 channel are studied , and the influence of two different wall heat transfer conditions on the flow is compared .

【作者單位】： 清華大學(xué)熱科學(xué)與動(dòng)力工程教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(No.51136003);國(guó)家自然科學(xué)基金青年項(xiàng)目(No.51506107);國(guó)家自然科學(xué)基金面上項(xiàng)目(No.51476082)
【分類號(hào)】：TK14
【正文快照】： 0引言基于靜態(tài)湍流模型的RANS方法在處理葉輪機(jī) 械內(nèi)部非定常多尺度湍流流動(dòng)上具有局限性而大規(guī) 模的LES計(jì)算在資源的消耗上過(guò)于高昂W,Spalart和AllmarasM于二十世紀(jì)九十年代末提出了脫離禍模擬方法(Detached Eddy Simulation,簡(jiǎn)稱DES),將雷諾時(shí)均方法(RANS)和大渦模擬方法(L，

本文編號(hào)：1386042