During rocket launching, the engine exhaust impinges on the launch structures, such as the
launch platform and the jet deflector, leading to a complex flowfield and generating strong …

This article provides a comprehensive overview of noise prediction and mitigation
methodologies within the context of rocket launch events. The first section presents noise …

Noise generation mechanisms for a perfectly expanded supersonic Mach number, while the
most energetic turbulent kinetic-energy-based POD modes appear to be dominated by lower …

Subscale model tests and a numerical investigation are performed to predict and attenuate
the acoustic level of the Epsilon launch vehicle at liftoff. Requirements for the subscale …

The study of the flowfield and noise characteristics of supersonic impinging jets is important
as these configurations can be found in many engineering applications, such as short …

This study investigates the near-field acoustic and hydrodynamic characteristics of an
axisymmetric Mach 1.5 air jet exhausting over a nominal one-twentieth-scale jet-blast …

Supersonic impinging jets may cause many adverse ground effects, including surface
erosion, nonuniform surface heat transfer, lift loss, and acoustic loading. In this study …

N September 14th, 2013, the first Epsilon launch vehicle (Epsilon-1) was successfully
launched by Japan Aerospace Exploration Agency (JAXA) from the Uchinoura space center …

In this paper, a fast-PSP measurement system using the intensity method is constructed to
capture the fluctuating pressure field generated by the vertical supersonic (Ma= 1.2) jet …

Acoustic waves generated from an impingement of the exhaust jet on the flame deflector is
one of the causes of the payload vibration during the liftoff of a launch vehicle. To …