multi domain dynamics
air sea land space

Applications

Our fields of interest and experience are diverse. However they share fundamental themes of multi domain dynamics.  Typically, vehicles or sensors moving in a fluid medium produce unsteady physical loads and responses which limit on-design performance. Our engineering solutions include sophisticated, time accurate computational fluid dynamics (CFD) coupled with structural-acoustic models and/or high fidelity aerodynamic/hydrodynamic/vibroacoustic testing. 
AUTO

Unsteady, separated flow-generated wind noise in the vehicle interior. Both aerodynamic and acoustic components of the unsteady flow cause vibration in the transparencies, panels and seals of the body which radiate unwanted sound to the interior.
AIRCRAFT

Boundary layer noise is greatly amplified by regions of  unsteady, separated and vortical flows over the fuselage, such as over cockpit crown, over protuberances and around wing root fairings. Time accurate CFD and related tools  defined the fluctuating pressure loads for vibroacoustic models, to control interior cabin noise.
SPACE

Ascent and re-entry aeroacoustic loads have long been a challenge to spacecraft and launch vehicles, requiring expensive transonic wind tunnel testing which defines loads too late in the development cycle. AeroHydroPLUS principals are engaged on NASA and Air Force programs to develop new modeling and test approaches to design for these environments.
UNDERWATER ACOUSTICS/SONAR

Flow induced self-noise on underwater transducers and arrays is always a major factor limiting signal-to-noise performance. High fidelity, transient CFD models coupled to structural acoustics models are providing new insights into the mechanisms and spawning design concepts for improved sonar performance.