1、華北電力大學(xué)（保定）碩士學(xué)位論文分層液膜流動(dòng)傳熱特性及影響因素分析姓名：田英申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：流體機(jī)械及工程指導(dǎo)教師：程友良20071215華北電力大學(xué)碩士學(xué)位論文摘要摘要本文首先用NS方程和合理的邊界條件對(duì)沿加熱壁面下降的分層液膜的流動(dòng)和傳熱問題進(jìn)行描述，建立其數(shù)學(xué)模型。由此，進(jìn)一步推導(dǎo)出分層液膜中小擾動(dòng)滿足的控制方程和邊界條件。針對(duì)一定的液膜密度分布進(jìn)行了具體的穩(wěn)定性分析，數(shù)值模擬了不同因素對(duì)分層液膜穩(wěn)定性的影響。然后導(dǎo)出沿傾

2、斜平板流動(dòng)的分層液膜中內(nèi)波的控制方程及其邊界條件，并進(jìn)行了無量綱化。用攝動(dòng)法對(duì)無量綱方程和邊界條件進(jìn)行了求解，導(dǎo)出了非線性內(nèi)波的演化方程。對(duì)導(dǎo)出的非線性內(nèi)波演化方程進(jìn)行了求解，得到了一定形式的行波解。本文對(duì)以往的研究工作進(jìn)行了推廣，具有一定的創(chuàng)新。關(guān)鍵詞：分層液膜，內(nèi)波，穩(wěn)定性分析，數(shù)值模擬ABSTRACT’I’hef10wandheattransferthestratifiedliquidfilmfallingdownaninclin

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