| LDR | | 02347nmm uu200433 4500 |
| 001 | | 000000333597 |
| 005 | | 20240805173333 |
| 008 | | 181129s2018 |||||||||||||||||c||eng d |
| 020 | |
▼a 9780438294820 |
| 035 | |
▼a (MiAaPQ)AAI10750197 |
| 035 | |
▼a (MiAaPQ)uci:14986 |
| 040 | |
▼a MiAaPQ
▼c MiAaPQ
▼d 248032 |
| 082 | 0 |
▼a 629.1 |
| 100 | 1 |
▼a Truong, Alexander. |
| 245 | 10 |
▼a Experimental and Theoretical Investigation of the Emission and Diffraction of Discrete Tone Noise Generated from the Exhaust of a Ducted Fan. |
| 260 | |
▼a [S.l.] :
▼b University of California, Irvine.,
▼c 2018 |
| 260 | 1 |
▼a Ann Arbor :
▼b ProQuest Dissertations & Theses,
▼c 2018 |
| 300 | |
▼a 155 p. |
| 500 | |
▼a Source: Dissertation Abstracts International, Volume: 80-01(E), Section: B. |
| 500 | |
▼a Adviser: Dimitri Papamoschou. |
| 502 | 1 |
▼a Thesis (Ph.D.)--University of California, Irvine, 2018. |
| 520 | |
▼a In modern turbofan engines powering commercial aircraft, the fan is becoming the dominant source of noise at takeoff and landing. Understanding and modeling of the fan noise source, and the interaction of the emitted sound with the airframe, are |
| 520 | |
▼a The experimental effort entailed the design and construction of a subscale ducted fan rig that includes all the relevant components of the turbofan engine and simulates accurately the sound emission generated by the fan of such engines. The duct |
| 520 | |
▼a The theoretical effort comprises the following steps: (a) extraction of the harmonic content of the measured noise through use of the Vold-Kalman filter |
| 520 | |
▼a Far-field source parameterization shows that the wavepacket can be modeled as a short cylindrical disturbance surrounding the exit of the nozzle. The resulting modeled sound field captures the most prominent experimental far-field and near-field |
| 590 | |
▼a School code: 0030. |
| 650 | 4 |
▼a Aerospace engineering. |
| 650 | 4 |
▼a Acoustics. |
| 690 | |
▼a 0538 |
| 690 | |
▼a 0986 |
| 710 | 20 |
▼a University of California, Irvine.
▼b Mechanical and Aerospace Engineering - Ph.D.. |
| 773 | 0 |
▼t Dissertation Abstracts International
▼g 80-01B(E). |
| 773 | |
▼t Dissertation Abstract International |
| 790 | |
▼a 0030 |
| 791 | |
▼a Ph.D. |
| 792 | |
▼a 2018 |
| 793 | |
▼a English |
| 856 | 40 |
▼u http://www.riss.kr/pdu/ddodLink.do?id=T14997090
▼n KERIS |
| 980 | |
▼a 201812
▼f 2019 |
| 990 | |
▼a 관리자 |