本文選題：遞歸圖　切入點(diǎn)：團(tuán)聚　出處：《高校化學(xué)工程學(xué)報(bào)》2017年04期

【摘要】：在提升管內(nèi)人工制造團(tuán)聚現(xiàn)象,對(duì)所生成的團(tuán)聚物進(jìn)行分區(qū)域辨識(shí),同時(shí)基于壓力信號(hào),采用遞規(guī)分析的方法研究節(jié)涌床和湍動(dòng)床兩種狀態(tài)下氣固兩相系統(tǒng)的混沌特征受團(tuán)聚物種類和循環(huán)物料量的影響。結(jié)果表明:節(jié)涌床狀態(tài)下遞歸圖中沿對(duì)角線發(fā)展趨勢(shì)顯著,系統(tǒng)周期性較強(qiáng)且不易受團(tuán)聚物種類的影響。湍動(dòng)床狀態(tài)下,提高物料循環(huán)流量,對(duì)于原始物料以及微團(tuán)聚物料,遞歸圖中沿對(duì)角線發(fā)展趨勢(shì)增強(qiáng),遞歸圖參數(shù)中確定性提高,分叉性減小,表明系統(tǒng)混沌特征弱化;對(duì)于成核團(tuán)聚物料,遞歸圖結(jié)構(gòu)和參數(shù)無明顯變化,反映出系統(tǒng)混沌特征所受影響較小;而對(duì)于黏結(jié)團(tuán)聚和糊狀團(tuán)聚物料,遞歸圖中孤立點(diǎn)增多,遞歸參數(shù)中確定性降低,分叉性增大,系統(tǒng)混沌特性增強(qiáng)。
[Abstract]:Artificial agglomeration in the riser is used to identify the generated aggregates, and based on the pressure signal, The chaotic characteristics of gas-solid two-phase system under the condition of slug bed and turbulent bed are studied by means of the method of hierarchical analysis. The results show that the tendency of diagonal development in the recursion diagram under the condition of slug bed is obvious, which is influenced by the type of agglomerates and the quantity of circulating materials. In turbulent bed, the circulation flow rate of materials is increased. For raw materials and micro-aggregate materials, the trend of diagonal development in recursion graph is enhanced, and the determinism in the parameters of recursion graph is improved. The bifurcation property is reduced, which indicates that the chaotic characteristic of the system is weakened, the structure and parameters of recursion graph have no obvious change for the nucleated agglomeration material, which reflects that the chaotic characteristic of the system is less affected, but for the agglomeration and the paste agglomeration material, The number of isolated points in recursion graph increases, the determinacy of recursive parameters decreases, the bifurcation increases, and the chaotic characteristics of the system are enhanced.
【作者單位】： 東北電力大學(xué)能源與動(dòng)力工程學(xué)院;
【基金】：國家自然科學(xué)基金(51276033)
【分類號(hào)】：TQ021.1

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