Cell-Set Modelling for a Microtab Implementation on a DU91W(2)250 Airfoil
| Autor: | Alejandro Ballesteros-Coll, Iñigo Aramendia, Jose Antonio Ramos-Hernanz, Ekaitz Zulueta, Unai Fernandez-Gamiz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Airfoil
Leading edge Control and Optimization 020209 energy Energy Engineering and Power Technology Geometry 02 engineering and technology 010501 environmental sciences lcsh:Technology 01 natural sciences Turbine wind turbine Approximation error 0202 electrical engineering electronic engineering information engineering Trailing edge Electrical and Electronic Engineering cell-set model Engineering (miscellaneous) 0105 earth and related environmental sciences Mathematics lcsh:T Renewable Energy Sustainability and the Environment Aerodynamics flow control Flow control (fluid) microtab aerodynamics Energy (miscellaneous) |
| Zdroj: | Addi: Archivo Digital para la Docencia y la Investigación Universidad del País Vasco Energies Volume 13 Issue 24 Addi. Archivo Digital para la Docencia y la Investigación instname Energies, Vol 13, Iss 6723, p 6723 (2020) |
| Popis: | Microtabs (MTs) are a regularly used flow control device in terms of wind turbine optimization. The present study introduces the application of the novel cell-set model for an MT implementation on a DU91W(2)250 airfoil. The cell-set model is based on the reusability of a mesh to add new geometries on the domain the matching geometry is located where the user requires, and a set of cells is constructed around the mentioned geometry. Subsequently, wall boundaries are assigned to the generated region. Computational simulations were carried out for fully mesh and cell-set models: MT lengths were set at 1.0%, 1.5% and 2.0% of the airfoil chord length (c) and the MTs were placed at 93% and 95% of c from the leading edge of the airfoil. Resulting data showed that the MT behavior was similar for both models with regard to aerodynamic performance curve representations. A global relative error of 3.784% was obtained for the cell-set model and a maximum relative error of 7.332% was determined. Qualitatively, both models generated significantly similar flow stream velocity wakes on the trailing edge area of the airfoil. |
| Databáze: | OpenAIRE |
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