Supersonic jets, particularly shock-containing jets, often exhibit high-intensity, discrete-
frequency acoustic tones. These tones are the signature of an aeroacoustic resonance loop …

The present review covers the latest evolution of computational aeroacoustics, the field that
deals with the noise generated by fluid flows and its propagation in the medium. It highlights …

In 1971, the US National Aeronautics and Space Administration (NASA) published a
seminal report—NASA SP-8072—which compiled the results of the early supersonic jet …

The aeroacoustic feedback loop establishing in a supersonic round jet impinging on a flat
plate normally has been investigated by combining compressible large-eddy simulations …

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 …

Abstract The Launch Ascent and Vehicle Aerodynamics (LAVA) framework, developed at
NASA Ames Research Center, is introduced. This technology originated from addressing …

A sharp immersed boundary computational aeroacoustic simulation approach for open-rotor
direct noise predictions is presented. A specific feature of the finite-difference based …

In this study large-eddy simulations of under-expanded supersonic impinging jets are
performed to develop a better understanding of the characteristics of the acoustic and …

Fast-responding pressure-sensitive paint (fast PSP) is a valuable tool for high spatial and
temporal resolution full-field pressure measurement. However, when fast PSP is used for …

The lift-off of space launch vehicles generates strong acoustic waves that interact in a
complex and potentially dangerous way with the launch facility and the launcher itself …