階梯流道應用於質點分離的流場實驗與分析

Experimental and Numerial Studies on a Duct Flow with Steps in Particle Separation.

楊昇穎(Shenh-Ying Yang)

指導教授 ： 許政行

中原大學/工學院/機械工程研究所/碩士(2009年)

https://doi.org/10.6840/cycu200900257

摘要

本論文研究主要的目的是利用階梯流道之流場特性使流場中之液體與固體質點分離。
本研究先進行階梯流道設計與模擬分析工作，之後再根據模擬設計之結果進行測試流道元件之加工並進行流場實驗觀測。在模擬工作上採用兩套商業化分析軟體進行兩階段工作。首先使用Fluent®進行階梯流道流場分析與設計改善，之後再使用ADNIA®軟體進行流固分離耦合分析工作。主要之分析參數為驅動流場之雷諾數(Reynolds number)、階梯流道中階梯擺放之位置與大小以及流道出口之位置與開口大小。經由模擬工作找出較佳之流道設計參數後即可進行實驗觀測。實驗固液流道之流量測定分別測量流場流型之觀測，並以CCD (Charge-coupled Device)紀錄之。
經模擬與實驗結果比對後可發現隨著雷諾數的增加，階梯流道所產生的迴流區範圍亦增加。代表可進行流固分離的範圍亦加大，亦即分離率可望因此而有所提昇。

關鍵字

Fluent® ； 實驗觀測 ； 流固分離 ； 階梯流道 ； ADINA®

並列摘要

The main goal of the research is to study the liquid and solid particle separation in the flow field by the characteristics of the steps flow channel.
After the step flow channel design and the simulation analysis, carry on the test flow channel process and the experimental observation.
Use two sets of commercialization software in the simulation to carry on the two working stage.
The Fluent® simulates the steps flow channel flow field analysis and the design improvement, afterward uses ADNIA® to study the particle separation and the coupling analysis.The main parameters are Reynolds number, the steps position and it’s size in the flow channel as well as the flow channel export position and the aperture size.
Find the optimal parameters of the channel design by the simulation, and then carry on the experimental observation. The liquid-solid separation measurement, observation of the flow field flow pattern, and records it by CCD(Charge-coupled Device).
After compared to simulation with the experimental result, along with Reynolds number increase, the recirculation region in the steps flow channel produces also increases obviously. The range of liquid-solid separation also enlarges and the separation rate hopes therefore to have the promotion.

並列關鍵字

Duct Flow with Steps ； Adina® ； Fluent® ； particle

參考文獻

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