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Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]

Driven by the customer's demand for a low interior noise while keeping the cost of the car to a minimum, the direction for aerodynamic noise reduction is to mitigate its noise source generation. However, the aerodynamic noise generation is complex due to its turbulent nature. This paper present...

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Main Authors: Mat Ali, Mohamed Sukri, Shaharuddin, Nur Haziqah, Jalasabri, Jafirdaus, Mohd Sood, Anwar, Mansor, Shuhaimi
Format: Article
Language:English
Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018
Subjects:
TJ Mechanical engineering and machinery
Mechanical and electrical engineering combined
Robotics. Robots. Manipulators (Mechanism)
Online Access:http://ir.uitm.edu.my/id/eprint/41313/1/41313.pdf
http://ir.uitm.edu.my/id/eprint/41313/
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spelling my.uitm.ir.413132021-02-04T10:01:21Z http://ir.uitm.edu.my/id/eprint/41313/ Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.] Mat Ali, Mohamed Sukri Shaharuddin, Nur Haziqah Jalasabri, Jafirdaus Mohd Sood, Anwar Mansor, Shuhaimi TJ Mechanical engineering and machinery Mechanical and electrical engineering combined Robotics. Robots. Manipulators (Mechanism) Driven by the customer's demand for a low interior noise while keeping the cost of the car to a minimum, the direction for aerodynamic noise reduction is to mitigate its noise source generation. However, the aerodynamic noise generation is complex due to its turbulent nature. This paper presents a validation study in predicting the noise generation due to the turbulent flow near the A-pillar and it's estimated sound level if the sound source is transmitted inside the cabin through the side window glass. The case under study is a generic vehicle model, SAE type 4-fullback body, for its available data to be compared. The noise source is obtained from the numerical simulation using open source CFD packages, OpenFOAM and Curle’s equation is used to estimate the sound propagation. The interior sound pressure level is then estimated by assuming sound transmission loss using the law of theoretical frequency for all ranges of noise frequency. A good agreement of the sound pressure level (SPL) between the current calculations and previous experimental measurements are obtained for frequency ranges between 200 Hz to 2000 Hz. The different in the other frequency ranges is mainly due to the invalid assumption when applying the law of theoretical frequency at these typical frequency ranges. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/41313/1/41313.pdf Mat Ali, Mohamed Sukri and Shaharuddin, Nur Haziqah and Jalasabri, Jafirdaus and Mohd Sood, Anwar and Mansor, Shuhaimi (2018) Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]. Journal of Mechanical Engineering (JMechE), SI 7 (1). pp. 111-126. ISSN 18235514
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic TJ Mechanical engineering and machinery
Mechanical and electrical engineering combined
Robotics. Robots. Manipulators (Mechanism)
spellingShingle TJ Mechanical engineering and machinery
Mechanical and electrical engineering combined
Robotics. Robots. Manipulators (Mechanism)
Mat Ali, Mohamed Sukri
Shaharuddin, Nur Haziqah
Jalasabri, Jafirdaus
Mohd Sood, Anwar
Mansor, Shuhaimi
Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]
description Driven by the customer's demand for a low interior noise while keeping the cost of the car to a minimum, the direction for aerodynamic noise reduction is to mitigate its noise source generation. However, the aerodynamic noise generation is complex due to its turbulent nature. This paper presents a validation study in predicting the noise generation due to the turbulent flow near the A-pillar and it's estimated sound level if the sound source is transmitted inside the cabin through the side window glass. The case under study is a generic vehicle model, SAE type 4-fullback body, for its available data to be compared. The noise source is obtained from the numerical simulation using open source CFD packages, OpenFOAM and Curle’s equation is used to estimate the sound propagation. The interior sound pressure level is then estimated by assuming sound transmission loss using the law of theoretical frequency for all ranges of noise frequency. A good agreement of the sound pressure level (SPL) between the current calculations and previous experimental measurements are obtained for frequency ranges between 200 Hz to 2000 Hz. The different in the other frequency ranges is mainly due to the invalid assumption when applying the law of theoretical frequency at these typical frequency ranges.
format Article
author Mat Ali, Mohamed Sukri
Shaharuddin, Nur Haziqah
Jalasabri, Jafirdaus
Mohd Sood, Anwar
Mansor, Shuhaimi
author_facet Mat Ali, Mohamed Sukri
Shaharuddin, Nur Haziqah
Jalasabri, Jafirdaus
Mohd Sood, Anwar
Mansor, Shuhaimi
author_sort Mat Ali, Mohamed Sukri
title Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]
title_short Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]
title_full Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]
title_fullStr Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]
title_full_unstemmed Validation study on external wind noise prediction using OpenFOAM / Mohamed Sukri Mat Ali ... [et al.]
title_sort validation study on external wind noise prediction using openfoam / mohamed sukri mat ali ... [et al.]
publisher Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
publishDate 2018
url http://ir.uitm.edu.my/id/eprint/41313/1/41313.pdf
http://ir.uitm.edu.my/id/eprint/41313/
_version_ 1691735782420643840
score 13.211869

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