The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON ACOUSTICS AND MUSIC
Transactions ID Number: 31-470
Full Name: Osama Marzouk
Position: Researcher
Age: ON
Sex: Male
Address: 1000 Progress St, NW (Apt # C)
Country: UNITED STATES
Tel: +1 (540) 231-3247
Tel prefix:
Fax: +1 (801) 515-0366
E-mail address: omarzouk@vt.edu
Other E-mails: osama_marzouk@yahoo.com
Title of the Paper: Changes in Fluctuation Waves in Coherent Airflow Structures with Input Perturbation
Authors as they appear in the Paper: Osama A. Marzouk
Email addresses of all the authors: omarzouk@vt.edu
Number of paper pages: 23
Abstract: We predict the development and propagation of the fluctuations in a perturbed ideally-expanded air jet. A non-propagating harmonic perturbation in the density, axial velocity, and pressure is introduced at the inflow with different frequencies to produce coherent structures in the airflow, which are synchronized with the applied frequency. Then, the fluctuations and acoustic fields are predicted for each frequency by integrating the axisymmetric linearized Euler equations. We investigate the effect of the perturbation frequency on different characteristics of the pressure and velocity waves. The perturbation frequency can be used to alter the propagation pattern and intensity of the waves and mitigate the noise levels at certain zones.
Keywords: Perturbation, Fluctuation, Waves, Acoustic, Coherent, Air, Jet, Synchronized
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