Abstract
In this paper, a high-order technique to accurately predict flow-generated noise is introduced. The technique consists of solving the viscous incompressible flow equations and inviscid acoustic equations using a incompressible/compressible splitting technique. The
incompressible flow equations are solved using the
in-house flow solver EllipSys2D/3D which is a second-order finite volume code. The acoustic solution is found by solving the acoustic equations using high-order finite difference schemes. The incompressible flow equations and
the acoustic equations are solved at the same time levels where the pressure and the velocities obtained from the incompressible equations form the input to the acoustic equations. To achieve low dissipation and dispersion errors, either Dispersion-Relation-Preserving (DRP)
schemes or optimized compact finite difference schemes are used for spatial discretizations of the acoustic equations. The classical fourth-order Runge-Kutta time scheme is applied to the acoustic equations for time discretization.
Original language | English |
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Book series | Journal of Physics: Conference Series (Online) |
Volume | 75 |
Pages (from-to) | 012084 |
ISSN | 1742-6596 |
DOIs | |
Publication status | Published - 2007 |
Event | 2nd International Conference on "The Science of Making Torque From Wind" - Kgs. Lyngby, Denmark Duration: 28 Aug 2007 → 31 Aug 2007 Conference number: 2 http://www.twind2007.mek.dtu.dk/ |
Conference
Conference | 2nd International Conference on "The Science of Making Torque From Wind" |
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Number | 2 |
Country/Territory | Denmark |
City | Kgs. Lyngby |
Period | 28/08/2007 → 31/08/2007 |
Internet address |