In this article the subject fluid structure interaction is approached using a real and a computational model. Different scenarios are tested in a laboratory facility, where analysis of transient phenomena are created. Since it’s a fluid-structure elastic phenomenon, it’s important to study the phenomenon unsteady flow induced that reflects a structural vibration, developed when the steady-state...

This paper presents a prototype application of a collaborative computational steering system for interactive computational fluid dynamics (CFD) simulations. One or more visualization clients allow the user to interact with the concurrently running CFD simulation. To provide interactivity even for high resolution runs the parallel Lattice Boltzmann-based simulation kernel is performed on a high ...

Abstract. This paper describes the growing use of computational fluid dynamics (CFD) at the Lockheed Martin Aeronautics Company to assess and design for unsteady loads. The experience in development and in use of CFD for unsteady loads is presented in four sections: (1) background and motivation leading to the development of this capability, (2) an overview of the tools and processes utilized i...

Ink transfer process from the printing roll to the web was investigated using a Computational Fluid Dynamics (CFD) technique for the roll-to-roll (R2R) printing application. A parametric study was conducted to identify the effects of fluid parameters such as viscosity, surface tension and contact angle. To make the present analysis more relevant to the real printing system, a three-dimensional ...

Planar laser-induced fluorescence (PLIF) images of nitric oxide (NO) in hypersonic flow over a wedge and a hemisphere are compared with a theoretical PLIF model. The theoretical PLIF images are based on computational fluid dynamics (CFD) models including a perfect-gas model and a nonequilibrium chemistry model. Two dimensional maps of the flow parameters generated by the CFD are used to predict...

This paper presents a Computational Fluid Dynamics (CFD) investigation of the aerodynamic effects of drafting in cycling. In drafting, cyclists ride close behind each other to reduce aerodynamic drag. The CFD simulations for single cyclists and for a group of two cyclists are successfully compared with wind-tunnel measurements. Both CFD simulations and wind tunnel measurements show that also th...

Computational fluid dynamics (CFD) is widely used by the scientific computing community to solve various fluid flow problems. High performance computing (HPC) enable faster CFD simulations with higher solution accuracies. Many CFD applications are run on multicore and multiprocessor platforms and are being increasingly ported to run on computational accelerators such as graphical processing uni...

Though researchers in computer graphics have started to use the GPGPU (General Purposed Graphics Processing Unit) method to speed up their procedural programs, these techniques are seldom used in the building simulation field. It is possible to apply the GPGPU method to many simulation scenarios (i.e. human evacuation, shadow simulation) to speed up performance. In this paper, CFD is used as an...

Background It is believed that hemodynamic factors contribute significantly to aneurysm formation, growth and rupture. Studies attempting to predict risk factors are mostly based on computational fluid dynamics (CFD). A disadvantage of CFD is that among other assumptions, often non-patient-specific inflow conditions are prescribed. 4D phase contrast MRI (4D PCMRI) for the assessment of hemodyna...