108 Radiated noise simulated from a full-scale multi-stage centrifugal pump

Quantitative evaluation of flow-induced structural vibration and noise in turbomachinery by full-scale weakly coupled simulation

“…Takano et al (2005) used this data to perform acoustic simulation using SYSNOISE to calculate noise emissions to the environment. The simulation results agreed with measured noise levels.…”

“…With the additional input of the fluid forces, we simulated vibration propagation in the structure, using a finite element program, named NEXST-Impact, and output the vibration velocities at the pump's outer surface. Takano et al (2005) then used the velocity data to calculate noise emissions to the environment, using a commercial program called SYSNOISE. A data interface named MULTI-COUPLER was developed for transferring data among the three simulations.…”

“…This article focuses on the structural simulation and strategies for weak coupling among simulations. The anterior-fluid and posterior-acoustic simulations can be found elsewhere (Wang et al, 2004;Takano et al, 2005).…”