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FSI-Acoustic Radiation Analysis
Posted Jul 9, 2015, 4:31 p.m. EDT Fluid & Heat, Computational Fluid Dynamics (CFD), Microfluidics, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers, Structural Mechanics Version 4.4 0 Replies
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I am working on a simulation that analyzes the effects of an ultrasonic wave (50 MHz) on structures within the vestibular system. I am using the FSI physics instead of the ASI physics because ASI does not include the nonlinearity of the acoustic radiation force that originates from the navier-stokes equations. The ultrasonic wave is implemented using an inlet BC with a time-dependent sine equation that creates a pressure wave that propagates through the fluid. I got the simulation to work but it took eleven hours to compute a study that ran for only 1 us. There were 500 time steps total. I need to be able to run the study for 200 ms. Does anyone have ideas for an efficient time-stepping method that uses a minimum of 4-10 time steps per wave cycle?
Hello Marta Iversen
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