[HTML][HTML] Review of launcher lift-off noise prediction and mitigation

MS Escartí-Guillem, LM Garcia-Raffi, S Hoyas - Results in Engineering, 2024 - Elsevier
This article provides a comprehensive overview of noise prediction and mitigation
methodologies within the context of rocket launch events. The first section presents noise …

[HTML][HTML] Flow and aeroacoustic attributes of highly-heated transitional rectangular supersonic jets

S Chen, R Gojon, M Mihaescu - Aerospace Science and Technology, 2021 - Elsevier
Heated transitional supersonic jets exhausting from a rectangular nozzle at over-expanded
conditions are investigated by Large Eddy Simulations and Ffowcs-Williams and Hawkings …

Spatiotemporal superresolution measurement based on POD and sparse regression applied to a supersonic jet measured by PIV and near-field microphone

Y Ozawa, T Nagata, T Nonomura - Journal of Visualization, 2022 - Springer
The present study proposed the framework of the spatiotemporal superresolution
measurement based on the sparse regression with dimensionality reduction using the …

Flow and acoustic fields of rocket jets im**ing on a perforated plate

M Varé, C Bogey - AIAA Journal, 2022 - arc.aiaa.org
The flow and acoustic fields of jets at a Mach number of 3.1 im**ing on a plate at 15 D of
the jet nozzle exit, where D is the nozzle diameter, have been investigated using highly …

[HTML][HTML] Large eddy simulation of pseudo shock structure in a convergent–long divergent duct

SM Mousavi, R Kamali, F Sotoudeh, N Karimi… - … & Mathematics with …, 2021 - Elsevier
In this paper, the Pseudo shock structure in a convergent–long divergent duct is investigated
using large eddy simulation on the basis of Smagorinsky–Lilly,​ Wall-Adapting Local Eddy …

Effect of the Reynolds number on the aeroacoustic fields of a transitional supersonic jet

Y Ozawa, T Nonomura, A Oyama, K Asai - Physics of Fluids, 2020 - pubs.aip.org
The Reynolds number effect on the aeroacoustic fields of a supersonic jet was
experimentally investigated via particle image velocimetry (PIV), schlieren visualization, and …

Comparison of three-dimensional density distribution of numerical and experimental analysis for twin jets

C Lee, Y Ozawa, T Haga, T Nonomura, K Asai - Journal of Visualization, 2021 - Springer
Three-dimensional density fields of the twin jets were numerically and experimentally
investigated. The present study focused on the comparison of the density distribution for the …

Modal analyses of double pulsed pressure-sensitive paint data of im**ing supersonic jet

E Li, Y Oka, Y Ozawa, T Nonomura - Journal of Visualization, 2024 - Springer
The surface pressure field generated by a supersonic im**ing jet on a vertical flat plate
was measured using a pressure-sensitive paint (PSP) and a double-pulsed laser. The Mach …

Demonstration and verification of exact DMD analysis applied to double-pulsed schlieren image of supersonic im**ing jet

K Ohmizu, Y Ozawa, T Nagata, T Nonomura… - Journal of …, 2022 - Springer
The exact dynamic mode decomposition (DMD) was applied to the nonsequential image
dataset obtained by the double-pulsed schlieren measurement of a supersonic im**ing …

Data assimilation of ideally expanded supersonic jet using rans simulation for high-resolution piv data

Y Ozawa, T Nonomura - Aerospace, 2024 - mdpi.com
Data assimilation using particle image velocimetry (PIV) and Reynolds-averaged Navier–
Stokes (RANS) simulation was performed for an ideally expanded supersonic jet flying at a …