Development of efficient and accurate CFD technologies for wind turbine unsteady aerodynamics

摘要: This paper focuses on novel unsteady and low speed algorithmic developments of a structured explicit Euler solver an unstructured implicit Euler/RANS for wind turbine CFD. The central topics are a) discussion the definition optimal low-speed preconditioning solvers featuring state-of-the-art convergence acceleration methods, b) presentation simple mixed strategy, c) implementation in code method which thus far has only been used stedy problems. These technologies thouroughly validated by considering flow field past pitching airfoil. excellent computational performance approach is also demonstrated computing stalled same All results demonstrate accuracy efficiency these algorithms.