Aeroacoustics investigation of unsteady incompressible cavity flow


Zafer B. , Cosgun F.

JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, cilt.31, ss.666-677, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 31 Konu: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.17341/gummfd.34239
  • Dergi Adı: JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY
  • Sayfa Sayıları: ss.666-677

Özet

In this study, unsteady incompressible flow field and aerodynamically generated noise of 2D and 3D cavity flows are investigated. In the case of 2D flow fields, standard k-epsilon, standard k-omega and SST k-omega is used and in the 3D case, flow field is computed using standard k-omega turbulence model. All numerical results are compared and validated with experimental measurement for Low Reynolds and Mach numbers. All unsteady flow fields results are used to compute a cavity noise using Ffowcs William - Hawking (FW-H) Acoustics Analogy. In the case of 3D cavity, the effect of quadrapole terms on the aerodynamically generated noise is investigated defining permeable interior surface.