Investigation of Choking in a Convergent Nozzle Flow : 3rd Report, Fine Structure of Choked Flow(Fluids Engineering)

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  • 先細ノズル流れのチョークに関する研究 : 第3報,チョーク流れの詳細構造(流体工学,流体機械)
  • 先細ノズル流れのチョークに関する研究(第3報)チョーク流れの詳細構造
  • サキボソ ノズル ナガレ ノ チョーク ニ カンスル ケンキュウ ダイ3ポウ チョーク ナガレ ノ ショウサイ コウゾウ

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The effect of the boundary layer thickness on the choking phenomenon of a convergent nozzle flow has been experimentally investigated using four nozzles with the same diameter but different boundary layer thickness at the exit of the nozzle. When the flow is just choked, the cross-section where the main flow Mach number is unity is located upstream of the nozzle exit, and the main flow is accelerated to supersonic from the section to the nozzle exit. The fine structure of such a choked flow in a convergent nozzle is explained taking the boundary layer displacement thickness into consideration.

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