Abstract
This paper explores the airflow and sound induced by high-speed disk rotation in digital versatile disk (DVD) drives to predict aeroacoustic noise characteristics. As a preliminary experimental work in this context, a particle image velocimetry technique has been conducted for airflow visualization and flow-field identification. The central part of the paper describes the impact on the numerical prediction of the airflow-induced sound pressure inside the DVD drive by use of a generalized function theory based on the Ffowcs Williams-Hawkings equation for computational aeroacoustics. The baseline drive is a DVD-ROM 4xwith Ω = 7200 rpm. A flow simulation has been performed to obtain the flow velocity and pressure distributions around the disk surface for use in noise prediction. Noise directivity is discussed to identify noise patterns and mechanisms inside the DVD drive.
| Original language | English |
|---|---|
| Pages (from-to) | 13-23 |
| Number of pages | 11 |
| Journal | Journal of Information Storage and Processing Systems |
| Volume | 2 |
| Issue number | 1-2 |
| Publication status | Published - 2000 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
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Airflow and sound induced by disk rotation in DVD drives. Part II : Visualization and simulation for noise prediction. / Yoo, Seungwon; Lee, Jongsoo; Min, Oak Key; Kim, Sookyung.
In: Journal of Information Storage and Processing Systems, Vol. 2, No. 1-2, 01.01.2000, p. 13-23.Research output: Contribution to journal › Article
TY - JOUR
T1 - Airflow and sound induced by disk rotation in DVD drives. Part II
T2 - Visualization and simulation for noise prediction
AU - Yoo, Seungwon
AU - Lee, Jongsoo
AU - Min, Oak Key
AU - Kim, Sookyung
PY - 2000/1/1
Y1 - 2000/1/1
N2 - This paper explores the airflow and sound induced by high-speed disk rotation in digital versatile disk (DVD) drives to predict aeroacoustic noise characteristics. As a preliminary experimental work in this context, a particle image velocimetry technique has been conducted for airflow visualization and flow-field identification. The central part of the paper describes the impact on the numerical prediction of the airflow-induced sound pressure inside the DVD drive by use of a generalized function theory based on the Ffowcs Williams-Hawkings equation for computational aeroacoustics. The baseline drive is a DVD-ROM 4xwith Ω = 7200 rpm. A flow simulation has been performed to obtain the flow velocity and pressure distributions around the disk surface for use in noise prediction. Noise directivity is discussed to identify noise patterns and mechanisms inside the DVD drive.
AB - This paper explores the airflow and sound induced by high-speed disk rotation in digital versatile disk (DVD) drives to predict aeroacoustic noise characteristics. As a preliminary experimental work in this context, a particle image velocimetry technique has been conducted for airflow visualization and flow-field identification. The central part of the paper describes the impact on the numerical prediction of the airflow-induced sound pressure inside the DVD drive by use of a generalized function theory based on the Ffowcs Williams-Hawkings equation for computational aeroacoustics. The baseline drive is a DVD-ROM 4xwith Ω = 7200 rpm. A flow simulation has been performed to obtain the flow velocity and pressure distributions around the disk surface for use in noise prediction. Noise directivity is discussed to identify noise patterns and mechanisms inside the DVD drive.
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M3 - Article
VL - 2
SP - 13
EP - 23
JO - Microsystem Technologies
JF - Microsystem Technologies
SN - 0946-7076
IS - 1-2
ER -