【摘要】：沸騰傳熱近加熱壁面"厚液層(Macrolayer)"的特性對(duì)于臨界熱流密度的觸發(fā)具有決定性的作用。然而,沸騰條件下厚液層厚度的實(shí)驗(yàn)數(shù)據(jù)很缺乏,預(yù)測(cè)模型也尚不完善。本文通過液膜沸騰實(shí)驗(yàn)獲得了不同熱流密度下厚液層的特征厚度�，F(xiàn)有的厚液層預(yù)測(cè)模型中,Haramura與Kumada模型的預(yù)測(cè)值低于實(shí)驗(yàn)值,Sadasivan模型的預(yù)測(cè)值高于實(shí)驗(yàn)值。本文基于Haramura模型,建立的厚液層厚度預(yù)測(cè)模型具有較高的精度,最大誤差降低到12%,適用范圍在0.5q_(CHF)到q_(CHF)之間。
[Abstract]:The characteristics of boiling heat transfer near heating wall "thick liquid layer (Macrolayer)" play a decisive role in triggering the critical heat flux. However, the experimental data of thick liquid layer thickness under boiling condition are scarce, and the prediction model is not perfect. In this paper, the characteristic thickness of thick liquid layer under different heat flux is obtained by liquid film boiling experiment. In the existing thick liquid layer prediction models, the predicted values of Haramura and Kumada models are lower than the experimental values, and the predicted values of the Sadasivan model are higher than the experimental values. Based on Haramura model, the thickness prediction model of thick liquid layer has high accuracy, the maximum error is reduced to 12, and the applicable range is between 0.5q _ (CHF) and q- (CHF).
【作者單位】： 上海交通大學(xué)核科學(xué)與工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(No.51306112)
【分類號(hào)】：TK124

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