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基于噴水強度均勻分布的多級阻尼集管設計

Design Technologies of Multistage Damping Header for Uniform Distribution of Water Spraying Intensity

  • 摘要: 利用計算流體動力學(CFD)和有限元數值模擬方法(FEM),研究了阻尼板數量和阻尼孔布置方式對集管管內流動和噴水強度分布的影響.對無阻尼板、一道阻尼板對稱結構、兩道阻尼板對稱結構、一道阻尼板非對稱結構等四種集管阻尼形式的噴水強度及其偏差進行了比較,兩道阻尼板對稱結構阻尼的集管噴水強度相對偏差最小.

     

    Abstract: Based on FEM (Finite Element Method) and CFD (Computational Fluid Dynamics), the effect of the number of damping plates and the distribution of damping orifice on the inner flow field and water spraying intensity distribution was studied. The water spraying intensity and it's deviation was compared among four kinds of headers, such as the header without damping plates, the header with one symmetric damping plate, the header with two symmetric damping plates, and the header with one non-symmetric damping plate. The result shows that the relative deviation of water spraying intensity of the header with two symmetric damping plates is the least one.

     

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