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Faculty and Staff / Joana Rocha

Joana Rocha

Associate Professor, Associate Chair, Graduate - Academic Advising

    Email:joana.rocha@carleton.ca
    Phone:613-520-2600, ext. 3199
    Building:Minto Centre, Room 3084
    Department:Mechanical and Aerospace Engineering
    Degrees:M.A.Sc., Ph.D., University of Victoria

    Biography

    Dr. Joana Rocha is an Associate Professor in the Department of Mechanical and Aerospace Engineering at Carleton University University, in Ottawa. Before joining Carleton University, Dr. Rocha was a Visiting Researcher at NASA Langley Research Centre and National Institute of Aerospace, in Virginia, USA. She received her Ph.D. and M.A.Sc. degrees at University of Victoria, in Victoria, where her research focused on the development of models for prediction of flow-induced noise in aircraft. Since joining Carleton University as a Professor in 2012, Dr. Rocha has established the Aeroacoustics Research Laboratory, with unique capabilities. The aeroacoustic high-speed wind tunnel allows Dr. Rocha and her team to develop state-of-the-art research in areas such as aircraft noise prediction and reduction. Dr. Rocha’s research focuses aircraft noise prediction, design and optimization of aircraft structures for noise reduction, aeroacoustics, turbulent-flow induced noise, structural-acoustics, and turbulence modelling with applications in aerospace. Through her research, Dr. Rocha aims to design and develop new aircraft concepts which are quieter.

    Dr. Rocha has been the recipient of a number of research awards, including the Natural Sciences and Engineering Research Council Discovery Grant, Early Career Researcher (ECR) Award, Consortium for Aerospace Research and Innovation in Canada (CARIC) and Consortium for Research and Innovation in Aerospace in Québec (CRIAQ) Grant. She is a member of the Board of Directors of Canadian Acoustical Association, and Associate Editor for the Canadian Acoustics journal.

    Research Interests:

    • Aeroacoustics and acoustics
    • Aircraft noise and community noise
    • Turbulent-flow induced noise
    • Experimental aeroacoustics
    • Turbulence modeling
    • Bio-inspired structural design for noise reduction
    • Human speech

    Open Research Positions:

    Graduate research positions are currently open in the area of experimental testing (wind tunnel), for application in aircraft design for noise reduction, and turbulence modelling. Students interested in pursuing research leading to M.A.Sc. or to a Ph.D. please contact me directly by email: Joana.Rocha@carleton.ca.

    Selected Publications:

    F. Giardino, and J. Rocha, Design and Evaluation of a High-Speed Aeroacoustic Wind Tunnel, Proceedings of 176th Meeting of the Acoustical Society of America and Acoustics Week in Canada 2018, Victoria, BC, Canada, Nov. 5-9, 2018.

    G. Desmarais, and J. Rocha (2018), Discrete Tones in Subsonic Jet Engine Test Cells, Progress in Aerospace Sciences, 101: 49-60. https://doi.org/10.1016/j.paerosci.2018.07.003

    S. Sonnenberg, J. Rocha, M. Misol, and M. Rose (2018), Experimental Validation Of An Acceleration Power Spectral Density Aircraft Panel Model Given Different Excitation, Canadian Acoustics, 46(2): 19-29.

    J. Van Blitterswyk, and J. Rocha (2017), An Experimental Study of the Wall Pressure Fluctuations Beneath Low Reynolds Number Turbulent Boundary Layers, Journal of the Acoustical Society of America, 141(2): 1257-1268. https://doi.org/10.1121/1.4976341

    S. Sonnenberg, and J. Rocha (2017), Extended Optimization Study and Panel Parameter Study for Noise Radiation Reduction of an Aircraft Panel Excited by Turbulent Flow, Canadian Acoustics, 45(1): 7-13.

    J. Rocha (2016), Impact of the Chosen Turbulent Flow Empirical Model on the Prediction of Sound Radiation and Vibration by Aircraft Panels. Journal of Sound and Vibration 373:285-301. http://doi.org/10.1016/j.jsv.2016.03.026

    S. Sonnenberg, and J. Rocha, Optimization Study and Panel Parameter Study for Noise Radiation Reduction of an Aircraft Panel Excited by Turbulent Flow. Acoustics Week in Canada 2016, Vancouver, BC, Canada, Sep. 21-23, 2016.

    J. Van Blitterswyk, and J. Rocha, Wall-Pressure Coherence Beneath a Low Reynolds Number Turbulent Boundary Layer, 24th International Congress of Theoretical and Applied Mechanics, Montreal, QC, Canada, Aug. 21-26, 2016.

    M. Brezina, and J. Rocha, A Study of Minimizing the Noise from a Trailing Edge by the use of Optimized Serrations, 171st Meeting of the Acoustical Society of America, Salt Lake City, UT, USA, May 23-27, 2016.

    J. Van Blitterswyk, and J. Rocha (2014), Prediction and Measurement of Flow-Induced Wall-Pressure Fluctuations at Low Mach Numbers, Canadian Acoustics, 42(4):13-25.

    J. Rocha (2014), Sound Radiation and Vibration of Composite Panels Excited by Turbulent Flow: Analytical Prediction and Analysis, Shock and Vibration 2014, Article No.316481. http:// doi.org/10.1155/2014/316481

    J. Van Blitterswyk, and J. Rocha, Prediction and Measurement of Turbulent Boundary Layer Wall-Pressure Fluctuations on the Surface of a Single Panel at Low Mach Numbers. Acoustics Week in Canada 2014, Winnipeg, MB, Canada, Oct. 7-10, 2014.

    J. Rocha and D. Palumbo (2012), On the sensitivity of Sound Power Radiated by Aircraft Panels to Turbulent Boundary Layer Parameters. Journal of Sound and Vibration 331(21): 4785-4806. http://dx.doi.org/10.1016/j.jsv.2012.05.030

    D. Palumbo and J. Rocha, The Influence of Boundary Layer Parameters on Interior Noise. Proceedings of the 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference), Colorado Springs, CO, USA, Jun. 4-6, 2012.

    J. Rocha, A. Suleman and F. Lau (2012), Prediction of Turbulent Boundary Layer Induced Noise in the Cabin of a BWB Aircraft. Shock and Vibration 19(4):693-705. http://dx.doi.org/10.3233/SAV-2011-0660

    J. Rocha, A. Suleman and F. Lau (2011), Flow-Induced Noise and Vibration in Aircraft Cylindrical Cabins: Closed-Form Analytical Model Validation. Journal of Vibration and Acoustics 133(5), Article No.051013. http://dx.doi.org/10.1115/1.4003935

    J. Rocha, A. Suleman and F. Lau (2010), Turbulent Boundary Layer Induced Noise and Vibration of a Multi-Panel Walled Acoustic Enclosure. Canadian Acoustics 38(4):9-22.

    J. Rocha, A. Suleman and F. Lau (2009), Prediction of Flow-induced Noise in Transport Vehicles: Development and Validation of a Coupled Structural-Acoustic Analytical Framework. Canadian Acoustics 37(4):13-29.

    J. Rocha, P. Moniz and A. Suleman (2007), Aeroelastic Control of a Wing with Active Skins Using Piezoelectric Patches. Mechanics of Advanced Materials and Structures 14(1):23-32. http://dx.doi.org/10.1080/15376490600864505

    J. Rocha, P. Moniz, A. Costa and A. Suleman (2005), On Active Aeroelastic Control of an Adaptive Wing using Piezoelectric Actuators. Journal of Aircraft 42(1):278-282. http:// dx.doi.org/10.2514/1.308