CONTROL OF AN OSCILLATORY RECTANGULAR CAVITY JET FLOW BY SECONDARY INJECTION(Cavity Flow and Pulsating Flow)

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概要

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• A method for controlling the position of an oscillatory jet cavity flow is demonstrated. The method involves secondary injection of a lower mass flow control jet into the cross-flow region of the primary jet. The primary jet in this case is a turbulent jet (Re=55000) which when injected into the rectangular cavity with no secondary control, attains a stable oscillation with a characteristic Strouhal number of S_<t,W>=0.013. The secondary injection control method is investigated using a combined experimental and numerical approach with a water model test rig and a 2D and 3D computational fluid dynamics (CFD) model. Based on previous work, a baseline cavity, with a depth to width ratio of H/W=0.16 and entry nozzle submergence of S/W=0.38, is used to study the effect of secondary jet injection parameters on deflection angle (δ). These secondary jet control parameters include mass flow ratio (α), momentum ratio (β) and injection position (Y_i).

• 一般社団法人日本機械学会の論文
• 2005-10-05

著者

• Lawson Nicholas

  Department Of Aerospace Sciences Cranfield University

• Davidson Malcolm

  Department Of Chemical And Biomolecular Engineering The University Of Melbourne

• Arruda Mauro

  Department Of Aerospace Sciences Cranfield University

関連論文

• Control of an Oscillatory Rectangular Cavity Jet Flow by Secondary Injection(Jets, Wakes and Separated Flows)
• CONTROL OF AN OSCILLATORY RECTANGULAR CAVITY JET FLOW BY SECONDARY INJECTION(Cavity Flow and Pulsating Flow)

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