Experimental and Numerical Investigation of Jet Noise Reduction Using Fluid Inserts for Rectangular Nozzle with Aspect Ratio of 2

Akatsuka, Junichi; Hromisin, Scott; McLaughlin, Dennis K.; Morris, Philip J.

doi:10.2514/6.2019-2596

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The rectangular nozzle [1][2] is composed of a circular air supply section, a circular torque transition section and a rectangular nozzle. The cross-sectional profile diagram is shown in Figure 1.…”

Section: Tps Standard Nozzle Designmentioning

confidence: 99%

Analysis of Flow Pattern of Turbulent Boundary Layer Jet in Rectangular Nozzle

Lyu

2022

J. Phys.: Conf. Ser.

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The design of the rectangular nozzle affects the thrust and stealth performance of the propeller. The relationship between the outlet area and the jet flow pattern is studied through the simulation analysis of three different outlet area rectangular nozzles with an aspect ratio of 8. From the simulation results, it can be seen that the exit area under a single variable determines the value and range of the jet Mach number, which produces a huge change in the mixing zone of the turbulent boundary layer, but it has nothing to do with the development trend of the near and far field.

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Section: Tps Standard Nozzle Designmentioning

confidence: 99%

Analysis of Flow Pattern of Turbulent Boundary Layer Jet in Rectangular Nozzle

Lyu

2022

J. Phys.: Conf. Ser.

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“…Use NX10 to model the geometric structure, and simulate the working state of Laval nozzle as much as possible, and construct the external free fluid domain [3][4][5][6]. The fluid domain adopts Workbench adaptive meshing, and the boundary layer is encrypted.…”

Section: Simulation Model and Parameter Establishmentmentioning

confidence: 99%

Analysis of Turbulent Boundary Layer Jet Flow Pattern of Laval Nozzle

Lyu

2022

J. Phys.: Conf. Ser.

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The rationality of the structure design of the Laval nozzle directly affects its work efficiency. The simulation software is used to simulate and analyze the structure and operating conditions of the Laval nozzle, and to find the relationship between the change of the turbulent boundary layer jet flow pattern. From the simulation results, it can be seen that the outlet diameter under a single variable cannot directly determine the value and range of the jet Mach number, but it produces a huge change in the mixing zone of the turbulent boundary layer, which directly affects the turbulent kinetic energy.

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