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Efficient aeroelastic analysis of inflatable structures using enhanced potential flow aerodynamics
- Source :
- UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC), Recercat. Dipósit de la Recerca de Catalunya, instname, Scipedia Open Access, Scipedia SL
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- An efficient method for the aeroelastic analysis of wind effects on inflatable structures is presented. The solution scheme is staggered and uses an explicit finite-element structural solver and potential flow aerodynamics. In order to take into account the essential features of the flow around blunt-shaped structures, a physics-based correction of the inviscid solution is proposed. The procedure involves automatic prediction of the detached flow areas (using Stratford’s criterion) and an empirical modification of the calculated pressure field intended to match the real viscous behavior. Several validation benchmarks and a realistic application example are presented. The results show the capability of the model to predict the wind loads on the structure with sufficient accuracy and low computational cost, making it possible to use aeroelastic analysis for routine calculation of inflatable structures.
- Subjects :
- Engineering, Civil
Física::Física de fluids [Àrees temàtiques de la UPC]
Inflatable structures
Engineering, Multidisciplinary
Potential flow
Viscous corrections
Pressió del vent
02 engineering and technology
01 natural sciences
Pressure field
Air-supported structures
010305 fluids & plasmas
0203 mechanical engineering
Inviscid flow
0103 physical sciences
Engineering, Geological
Aeroelasticity
Engineering, Aerospace
Aeroelasticitat
Engineering, Petroleum
Estructures pneumàtiques
business.industry
Mechanical Engineering
Engineering, Environmental
Structural engineering
Aerodynamics
Solver
Wind-pressure
Wind loads
Engineering, Marine
Engineering, Manufacturing
020303 mechanical engineering & transports
Inflatable
Flow (mathematics)
Engineering, Industrial
business
Subjects
Details
- ISSN :
- 08899746
- Volume :
- 90
- Database :
- OpenAIRE
- Journal :
- Journal of Fluids and Structures
- Accession number :
- edsair.doi.dedup.....60180cb82c5070e2056ec6d911e58672