Multidisciplinary advanced computations: Fluid dynamics, Aeroacoustics, Structural dynamics 2 (MultFAS2)

Research Project, 2023 – 2024

Purpose and goal
The multidisciplinary project aims to study internal weapon bays (IWB) in transonic flow and how its flexible structure affects and is affected by acoustic phenomena. Furthermore, structural vibrations and aerodynamic forces from FSI (fluid-structure interaction)/CFD (computational fluid dynamics) simulations of the cavity will be coupled with analyzes to calculate internal aircraft noise. The goal is to create an analysis chain that connects external flow with internal noise and to formulate "best practice" for this type of analysis and methodology.

Expected results and effects
The project is expected to result in an improved ability to use calculations to predict external and internal noise associated to IWBs in transonic flow, aeroelastic structural deformations and a deeper understanding of the interaction between acoustics and structural vibrations. The expected results will, among other things, have an effect in the development of future combat aircraft systems, civil aircraft platforms and derivatives whereof multidisciplinary simulations techniques will be of great importance. The results and effects are thus of a "dual-use" nature.