On some fluid-structure iterative algorithms using pressure segregation methods. Application to aeroelasticity
نویسندگان
چکیده
In this paper we suggest some algorithms for the fluid-structure interaction problem stated using a domain decomposition framework. These methods involve stabilized pressure segregation methods for the solution of the fluid problem and fixed point iterative algorithms for the fluid-structure coupling. With one single loop the solution of the coupled system tends to the one of the strongly coupled monolithic system. These coupling algorithms are applied to the aeroelastic simulation of suspension bridges. We assess flexural and torsional frequencies for a given inflow velocity. Increasing this velocity we reach the value for which the flutter phenomenon appears. Copyright c © 2000 John Wiley & Sons, Ltd.
منابع مشابه
An Evaluation on the Efficient use of Supercomputers for Computational Aeroelasticity
ABSTRACT This study evaluates the role of supercomputers in large-scale fluid/structure analyses of aerospace vehicles, with an emphasis on computational aeroelasticity dominated by complex fluid/structure interactions. The information presented is primarily based on responses to a web-based survey that was designed to capture the nuances of highperformance computational aeroelasticity and, in ...
متن کاملSome Recent Advances in Nonlinear Aeroelasticity: Fluid-structure Interaction in the 21 Century
SOME RECENT ADVANCES IN NONLINEAR AEROELASTICITY: FLUID-STRUCTURE INTERACTION IN THE 21 CENTURY ABSTRACT Aeroelasticity is the field that examines, models and seeks to understand the interaction of the force from an aerodynamic flow and the deformation of an elastic structure. The forces produce deformation, but the structural deformation in turn changes the aerodynamic forces. This feedback be...
متن کاملPrediction of Bubble Point Pressure & Asphaltene Onset Pressure During CO2 Injection Using ANN & ANFIS Models
Although CO2 injection is one of the most common methods in enhanced oil recovery, it could alter fluid properties of oil and cause some problems such as asphaltene precipitation. The maximum amount of asphaltene precipitation occurs near the fluid pressure and concentration saturation. According to the description of asphaltene deposition onset, the bubble point pressure has a very special imp...
متن کاملSegregation Behaviour of Particles in Gas Solid Fluidized Beds at Elevated Pressure
A comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. To quantify the extent of mixing in the bed, the Lacey mixing index was used. Simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...
متن کاملAnalysis of the Impact of Managed Pressure Drilling Technology on Current Casing Program Design Methods (TECHNICAL NOTE)
This paper analyzed the characteristics of managed pressure drilling (MPD) technology and impact of wellhead back pressure on the wellbore annulus pressure profile, and found that the application of this technology provides room for improvement to the current casing program design. Meanwhile, the equivalent density of drilling fluid in wellbore annulus needs to consider the impact of back press...
متن کامل