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3 Addressing the Complex Physics of a Complete System Over the years, products have become extremely complex. So too have your fluid dynamics problems: Systems with moving parts (such as pistons and valves) require transient analysis; systems with phase changes due to heating or cooling liquids (for example, heat exchangers) require accurate, multi-phase capabilities; and systems with challenging multiphysics phenomena (such as fluid−structure interaction) call for easy- to-use, accurate advanced capabilities. To gain more insight into product behavior, you need to consider the full range of physics present in the system you are designing. Fluent offers state-of-the-art advanced capabilities to model laminar and turbulent flows as well as more- complex physics including multiphase flows, chemical reactions, radiation and particulate dynamics. You can be confident that Fluent will accurately predict product behavior because all models are thoroughly tested and validated. For best-in-class products, engineers can no longer rely on analyzing one type of physics (fluids, structural or electromagnetics). Instead, you must study all physics along with their interactions. You can seamlessly couple Fluent with ANSYS structural mechanics or electromagnetics simulation tools to gain insight into the entire system. For example, you can study how the fluids system deforms the structure that contains it, or how the heat generated by an electronic component affects fluids temperature. The Right Investment in the Right Technology Simulation R&D outlays — in terms of time, effort and dollars — must provide a positive financial return, now and over the long term. Fluent is a safe CFD investment. The technology is the tool of choice for many of the world's largest and most innovative companies. Its reliability is well validated by academic researchers, independent organizations, technology partners and clients. In this two-way FSI solu- tion of transient blood flow through a three- leaf mitral valve, blood flow is represented with non-Newtonian fluid, and biological tissue is modeled with anisotropic hyperelastic material properties. The solution includes 3-D remeshing of the fluid domain, nonlinear materials and contact. Because of our commitment to quality assurance, customers use our CFD tools with full confidence. Bechtel National applies Fluent to convert nuclear waste into a stable, glass-like material for storage. Multiphase tools accurately predict the mixing ability of vessels in which the waste is treated. To decrease drag on its LZR RACER® suit, Speedo® used Fluent simulations involving a precise boundary layer meshing technique to resolve fine fluid flow details.