Change in acoustic impulse response of a room due to a fire
A room fire creates temperature gradients and inhomogeneous time varying temperature, density, and flow fields. Experimental measurements of the room acoustic impulse/frequency response are presented and compared with a ray traced model. The results show that the fire causes wave-fronts to arrive ea...
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| Veröffentlicht in: | The Journal of the Acoustical Society of America 2020-06, Vol.147 (6), p.EL546-EL551 |
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| container_end_page | EL551 |
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| container_issue | 6 |
| container_start_page | EL546 |
| container_title | The Journal of the Acoustical Society of America |
| container_volume | 147 |
| creator | Abbasi, Mustafa Z. Wilson, Preston S. Ezekoye, Ofodike A. |
| description | A room fire creates temperature gradients and inhomogeneous time varying temperature, density, and flow fields. Experimental measurements of the room acoustic impulse/frequency response are presented and compared with a ray traced model. The results show that the fire causes wave-fronts to arrive earlier (due to the higher sound speed) and with more variation in the delay times (due to the sound speed perturbations). The frequency response shows that the modes are shifted up in frequency and high frequency (>2500 Hz) modes are significantly attenuated. Model results are compared with data and show good agreement in observed trends. |
| doi_str_mv | 10.1121/10.0001415 |
| format | Article |
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| ispartof | The Journal of the Acoustical Society of America, 2020-06, Vol.147 (6), p.EL546-EL551 |
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| source | AIP Journals Complete; Acoustical Society of America (AIP); Alma/SFX Local Collection |
| title | Change in acoustic impulse response of a room due to a fire |
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