Research Initiation Award: New Multigrid Navier-Stokes Methods for Predicting Unsteady Flows in Turbomachinery Cascades

小行星9410800 本研究旨在开发新的方法来解决Navier-Stokes方程使用先进的两方程湍流模型。 这些新方法将允许非定常气动载荷的预测，因此将在涡轮和压气机的设计中得到应用。 目前在这些领域的知识是基于稳定的流动模型，而实际流动是非常不稳定的。 拟议的工作有分析和数值的组成部分，包括：发展的一个通量有限的压力分裂耗散模型和k-w湍流模型，算法的大规模并行计算机和新技术求解的Navier Stokes方程和湍流方程。 ***

9410800 Liu This research seeks to develop new methods to solve the Navier-Stokes equations using advanced two-equation turbulence models. These new methods will permit the prediction of unsteady aerodynamic loads and hence will have applications in the design of turbines and compressors. Current knowledge in these areas is based on steady flow models whereas the actual flows are highly unsteady. The proposed work has both analytical and numerical components including: development of a flux-limited pressure split dissipation model and k-w turbulence model, algorithms for massively parallel computers and new techniques for solving both the Navier Stokes equations and the turbulence equations. ***