State of the art of Newtonian k-w turbulence models for new viscoelastic closures implementation

• Grant number: 15/21404-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2016
• End date: December 31, 2016
• Field of knowledge: Engineering - Mechanical Engineering - Transport Phenomena
• Principal Investigator: Pedro Miguel Rebelo Resende
• Grantee: Davi Lobo de Melo
• Host Institution: Instituto de Ciência e Tecnologia. Universidade Estadual Paulista (UNESP). Campus de Sorocaba. Sorocaba , SP, Brazil

Abstract

Tom in 1949 discover the reduction of drag phenomenon, by introducing polymeric particles in a solvent turbulent flow. After that, many researchers make an effort to understand this phenomenon and take more advantage of the viscoelastic fluids, due to the elastic component present, like for example the petroleum and derivative transport at long distances where it is possible to reduce the energy cost by the presence of the polymeric particles, therefore, it is necessary to develop adequate turbulence models that can be used to solve engineering problems. Actually there are models that can accuracy predict relevant quantities, like for example Resende et al. [1-5], Iaccarino et al. [6] and Masoudian et al. [7], but they only were tested in simple geometries like channel and pipe turbulent flows, and complex implementation. Therefore it is necessary, at short time, to expand this viscoelastic models to complex geometries, such as recirculation turbulent flows with viscoelastic fluids for different degree of drag reduction. Which will allow to simulate different types of engineering projects, and consequently reducing time and cost in experiments. For this reason, the state of the art of Newtonian k-w turbulent models is made for future developments in viscoelastic turbulent models, creating simpler models with high performance to predict viscoelastic turbulent flows in complex geometries.