Çankaya GCRIS Standart veritabanının içerik oluşturulması ve kurulumu Research Ecosystems (https://www.researchecosystems.com) tarafından devam etmektedir. Bu süreçte gördüğünüz verilerde eksikler olabilir.

Makine Mühendisliği Bölümü

Permanent URI for this communityhttps://hdl.handle.net/20.500.12416/19

Browse

Browsing Makine Mühendisliği Bölümü by Subject "Aeroakustik"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • Thumbnail Image
    Conference Object
    Citation Count: Aylı, Ece. "Passive and Active Control of Acoustic Resonance in Cavity Flows using FWH Equations", İstanbul: Passive and Active Control of Acoustic Resonance in Cavity Flows using FWH Equations 01-03 July 2020.
    Passive and Active Control of Acoustic Resonance in Cavity Flows using FWH Equations
    (2020) Aylı, Ece; 265836
    In the aerospace industry, interior storage carriages, that carry items such as weapons and bombs form cavities. The turbulence-cavity interaction causes significant vibration, sound pressure levels, resonance, and structural problems. Therefore, control methods are can be useful to reduce drag, minimize pressure fluctuations and SPL levels. This work studies the passive flow control methods to reduce the noise induced by the flow over the cavity. For this purpose, cavity leading, and trailing edge wall modifications were made such as inclination, placing a block upstream of the cavity, blowing from the cavity walls. Broadband nature of the noise sources is captured generally with DNS or LES approach. Large Eddy Simulations (LES) is used to compute the flow field to reduce computational cost. ANSYS Fluent software is utilized to solve compressible, two-dimensional, transient subsonic cavity flow. For the determination of sound pressure levels, Ffowcs-Williams–Hawkings (FW-H) integral method is used.