S0504-3-3 切欠きオリフィス噴流の流動特性(噴流,後流および剥離流れの流動解析と応用(その3))

概要

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Jet flow from an orifice nozzle is applicable to mixing and entraining of ambient fluid remarkably due to the vena contracta effect, but the sudden contraction at the nozzle exit accounts for a high flow resistance. In order to reduce the flow resistance remaining a better mixing performance caused by the vena contracta effect, the flow characteristics of jets from a notched orifice nozzle were examined experimentally. Hot wire measurements were conducted to demonstrate the spreading or mixing performance of the notched orifice nozzle having a reduced flow resistance of the nozzle and an increased turbulent intensity more than the conventional orifice nozzle.
社団法人日本機械学会の論文
2009-09-12