Investigation on rod-airfoil noise with high-order cell-centered finite difference method and acoustic analogy

Yao Jin; Fei Liao; Jinsheng Cai; Philip J. Morris

doi:10.1016/j.ast.2020.105851

Investigation on rod-airfoil noise with high-order cell-centered finite difference method and acoustic analogy

Yao Jin, Fei Liao, Jinsheng Cai, Philip J. Morris

Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

This paper focuses on the radiation noise of a rod-airfoil configuration based on a high-order cell-centered finite difference method (CCFDM) and Ffowcs Williams-Hawkings (FW-H) acoustic analogy. To reduce numerical dissipation and dispersion, a class of optimized compact schemes is firstly proposed and then validated with benchmark cases from computational aeroacoustic workshops. For turbulence, the delayed detached eddy simulation (DDES) with Spalart-Allmaras model is adopted and is validated through a canonical periodic hill problem. For the far-field radiated acoustics, the FW-H acoustic analogy is utilized with validation of laminar flow past NACA0012. Finally, a rod-airfoil configuration is investigated. The results show reasonable agreement with the experimental data in terms of both near-field aerodynamics and far-field acoustics. The interaction between the upstream turbulence wake from the rod and the downstream airfoil is evidenced to be the dominant contributor to the far-field noise.

Original language	English (US)
Article number	105851
Journal	Aerospace Science and Technology
Volume	102
DOIs	https://doi.org/10.1016/j.ast.2020.105851
State	Published - Jul 2020

All Science Journal Classification (ASJC) codes

Aerospace Engineering

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10.1016/j.ast.2020.105851

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title = "Investigation on rod-airfoil noise with high-order cell-centered finite difference method and acoustic analogy",

abstract = "This paper focuses on the radiation noise of a rod-airfoil configuration based on a high-order cell-centered finite difference method (CCFDM) and Ffowcs Williams-Hawkings (FW-H) acoustic analogy. To reduce numerical dissipation and dispersion, a class of optimized compact schemes is firstly proposed and then validated with benchmark cases from computational aeroacoustic workshops. For turbulence, the delayed detached eddy simulation (DDES) with Spalart-Allmaras model is adopted and is validated through a canonical periodic hill problem. For the far-field radiated acoustics, the FW-H acoustic analogy is utilized with validation of laminar flow past NACA0012. Finally, a rod-airfoil configuration is investigated. The results show reasonable agreement with the experimental data in terms of both near-field aerodynamics and far-field acoustics. The interaction between the upstream turbulence wake from the rod and the downstream airfoil is evidenced to be the dominant contributor to the far-field noise.",

author = "Yao Jin and Fei Liao and Jinsheng Cai and Morris, {Philip J.}",

note = "Funding Information: This research is supported by the 111 project on “ Aircraft Complex Flows and the Control ” of China (No. B17037 ), China Scholarship Council (No. 201706290086 ) and National Natural Science Foundation of China (No. 91952203 ). We also thank the reviewers' valuable comments, which have substantially improved the quality of our manuscript. Funding Information: This research is supported by the 111 project on ?Aircraft Complex Flows and the Control? of China (No. B17037), China Scholarship Council (No. 201706290086) and National Natural Science Foundation of China (No. 91952203). We also thank the reviewers' valuable comments, which have substantially improved the quality of our manuscript. Publisher Copyright: {\textcopyright} 2020 Elsevier Masson SAS",

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doi = "10.1016/j.ast.2020.105851",

language = "English (US)",

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journal = "Aerospace Science and Technology",

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AU - Jin, Yao

AU - Liao, Fei

AU - Cai, Jinsheng

AU - Morris, Philip J.

N1 - Funding Information: This research is supported by the 111 project on “ Aircraft Complex Flows and the Control ” of China (No. B17037 ), China Scholarship Council (No. 201706290086 ) and National Natural Science Foundation of China (No. 91952203 ). We also thank the reviewers' valuable comments, which have substantially improved the quality of our manuscript. Funding Information: This research is supported by the 111 project on ?Aircraft Complex Flows and the Control? of China (No. B17037), China Scholarship Council (No. 201706290086) and National Natural Science Foundation of China (No. 91952203). We also thank the reviewers' valuable comments, which have substantially improved the quality of our manuscript. Publisher Copyright: © 2020 Elsevier Masson SAS

PY - 2020/7

Y1 - 2020/7

N2 - This paper focuses on the radiation noise of a rod-airfoil configuration based on a high-order cell-centered finite difference method (CCFDM) and Ffowcs Williams-Hawkings (FW-H) acoustic analogy. To reduce numerical dissipation and dispersion, a class of optimized compact schemes is firstly proposed and then validated with benchmark cases from computational aeroacoustic workshops. For turbulence, the delayed detached eddy simulation (DDES) with Spalart-Allmaras model is adopted and is validated through a canonical periodic hill problem. For the far-field radiated acoustics, the FW-H acoustic analogy is utilized with validation of laminar flow past NACA0012. Finally, a rod-airfoil configuration is investigated. The results show reasonable agreement with the experimental data in terms of both near-field aerodynamics and far-field acoustics. The interaction between the upstream turbulence wake from the rod and the downstream airfoil is evidenced to be the dominant contributor to the far-field noise.

AB - This paper focuses on the radiation noise of a rod-airfoil configuration based on a high-order cell-centered finite difference method (CCFDM) and Ffowcs Williams-Hawkings (FW-H) acoustic analogy. To reduce numerical dissipation and dispersion, a class of optimized compact schemes is firstly proposed and then validated with benchmark cases from computational aeroacoustic workshops. For turbulence, the delayed detached eddy simulation (DDES) with Spalart-Allmaras model is adopted and is validated through a canonical periodic hill problem. For the far-field radiated acoustics, the FW-H acoustic analogy is utilized with validation of laminar flow past NACA0012. Finally, a rod-airfoil configuration is investigated. The results show reasonable agreement with the experimental data in terms of both near-field aerodynamics and far-field acoustics. The interaction between the upstream turbulence wake from the rod and the downstream airfoil is evidenced to be the dominant contributor to the far-field noise.

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Investigation on rod-airfoil noise with high-order cell-centered finite difference method and acoustic analogy

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