- 期刊
Pressure Fluctuations in Spouted Beds
噴流床之壓力擾動
摘要
探討利用不同粒徑之粒子、不同種類之粒子、不同圓錐角、及不同靜床高度對噴流床中壓力擾動與壓力降落之影響。結果顯示壓力擾動之標準偏差不但可以用來描述區域之變遷，並且可以用來決定最小噴流化速度。經由Fourier轉換與spectral分析，壓力擾動之主頻隨床中流體力學情況之不同而改變。
關鍵字
無資料並列摘要
The effects of different kind of particles, different particle sizes, conical angles, and static bed heights on the pressure fluctuations and pressure drop in spouted beds were studied. The results showed that the standard deviation of the pressure fluctuations not only described the transition of the regime but also determined the minimum spouting velocity. After transformation with spectral analysis, the major frequency of the pressure fluctuation data was changed with the variation of the hydrodynamics. In addition, the changes of the special frequency scales corresponded to the hydrodynamic changes.
延伸閱讀
- 張明欽（2004）。二維噴流床之壓力擾動訊號分析〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2004.02303
- Chang, H. C. (2013). 伴隨噴流之超音速飛行體阻力分析 [master's thesis, Tamkang University]. Airiti Library. https://doi.org/10.6846/TKU.2013.00324
- 林延金（2003）。流體化床中壓力擾動及徑向氣體混合之研究〔博士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu200200621
- 張綺伶（2005）。氣泡式流體化床中壓力擾動與氣體混合之關聯性研究〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu200500490
- 劉德濱（2004）。氣泡床之壓力擾動分析探討〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2004.02328