聲波在氣固兩相流介質(zhì)中傳播特性的實驗研究.pdf

1、華北電力大學(xué)（保定）碩士學(xué)位論文聲波在氣固兩相流介質(zhì)中傳播特性的實驗研究姓名：楊文澤申請學(xué)位級別：碩士專業(yè)：熱能工程指導(dǎo)教師：安連鎖20081215華北電力大學(xué)碩士學(xué)位論文摘要摘要聲波在氣固兩相流中的傳播特性，是聲學(xué)法爐內(nèi)溫度場監(jiān)測、爐管泄露聲學(xué)監(jiān)測以及氣固兩相流的聲學(xué)監(jiān)測等技術(shù)中，遇到的必須解決的重要理論問題之一。本文論述了聲波在氣固兩相流的傳播機(jī)理，通過參考LambertBeer定律，建立了計算聲衰減系數(shù)表達(dá)式，設(shè)計并搭建了實驗臺，

2、對聲波在氣固兩相流中的傳播特性進(jìn)行了實驗研究，包括：聲波頻率、氣固兩相流濃度和顆粒粒徑大小對聲傳播規(guī)律的影響。在此基礎(chǔ)上建立了聲波在氣固兩相流介質(zhì)中衰減的數(shù)學(xué)模型，為聲學(xué)法爐內(nèi)溫度場監(jiān)測、爐管泄露聲學(xué)監(jiān)測以及氣固兩相流的聲學(xué)監(jiān)測等技術(shù)中的應(yīng)用奠定了基礎(chǔ)。關(guān)鍵詞：聲波，衰減系數(shù)，氣固兩相流，濃度，粒徑ABSTRACTTheresearchofacousticpropagationcharacteristicsisaveryimportan

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