湍動流化床 的英文怎麼說
中文拼音 [dòngliúhuàchuáng]
湍動流化床
英文
turbulent fluidized bed-
The result showed that the hurst exponent of the signal have obvious differences between different flow regime. it increased when flow regime was changed from fixed bed to bubbling bed and more from bubbling bed to turbulent, based on which a new method for identification of flow regime was proposed. to improve the accuracies of identification fuzzy technology was introduced
為了提高辨識準確率,引入了模糊信息處理技術,提出了流型模糊辨識中隸屬度函數的確定辦法,建立了氣固流化床從固定床、鼓泡床到湍動床的流型判別準則,實驗驗證了該方法有良好的辨識效果,辨識準確率在80以上。The threshold of autoregressive orders is obtained to identify the flow regimes of bubbling bed and turbulent bed. the accuracies of identification of bubbling bed and turbulent bed are 94. 3 % and 80. 0 % respectively. the arma models of the signals acquired from experiments are constructed
在此基礎上,利用模型階數進行流型的判別,初步實驗結果表明,所採用流型辨識方法是有效的,氣固流化床中鼓泡床和湍動床的辨識成功率分別為94 . 3和80 . 0 。Complexity parameter c2, fluctuation complexity parameter cf and algorithm complexity parameter c ( n ) have been adopted to analysis pressure fluctuation signals from a gas - solid fluidized bed, the variation of the three complexity parameters with gas velocity from fixed bed, bubbling fluidization to turbulence fluidization are studied, then compared in order to characterize regime behaviors. it is demonstrated that there exists a phenomenon named " recorded " in the regime transition from fixed bed to bubbling fluidization, the three complex parameters are believed to be a new technique for flow regime identification
結果表明,起始流化至鼓泡態轉變的過程中,復雜性參數表明氣固體系會進行一種所謂的「重構」現象,這與用k熵表徵起始流化態至鼓泡態之間變化時所得到的結果相一致,並能明確地指示固定床、鼓泡流化及湍動流化等不同流態之間的轉變過程,為流型識別提供了新思路。
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