Prediction of the Sound Reduction Index (R) of plasterboard partitions with structural links is a challenging problem due to the fluid-structure interaction (FSI) between the structural and fluid systems.
Discretization in space with three primary variables and discretization in time using the one-step-theta method lead to a complete discrete formulation, which includes both finite deformations as well as full coupling of structural and fluid phases.
Since the feedback of the acoustic pressure onto the structure cannot be neglected in this case, a strong coupled scheme between the structural and fluid domains is usually required.
Such tools have been very effective in order to provide complementary geological, structural and fluid information (Nabighian et al. 2005).
Runs structural and fluid dynamics simulations for jet-engine turbines on 5,000 workstations at once when the engineers go home for the day.
Theoretical analyses with these structural and fluid finite elements gave satisfactory results compared to the experiments.
By considering structural and fluid parameters of the system as random fields, the governing deterministic partial differential equation (PDE) of continuous system is transformed into a stochastic PDE.
Computationally intensive fluid structure interaction simulation could overcome simplifications and limitations of existing approaches, especially small scale wind tunnel tests, and allow the assessment of all relevant structural and fluid phenomena.
As a technology manager at Pratt & Whitney, a manufacturer of jet engines, she supports engineers who must simulate in 3-D the structural and fluid effects of superhot gases rushing at 685 kilometers an hour through engine turbine blades spinning at 9,000 revolutions per minute.
As a technology manager at jet-engine maker Pratt & Whitney, she supports engineers who must simulate in 3-D the structural and fluid effects of superhot gases rushing at 425 miles per hour through engine turbine blades that spin at 9,000 revolutions per minute.
