Numerical Simulation of the Aerodynamics of High-Lift Configurations

This book deals with numerical simulations and computations of the turbulent flow around high-lift configurations commonly used in aircraft. It is devoted to the Computational Fluids Dynamics (CFD) method using full Navier-Stokes solvers typically used in the simulation of high-lift configuration. With the increase of computational resources in the aeronautical industry, the computation of complex flows such as the aerodynamics of high-lift configurations has become an active field not only in academic but also in industrial environments. The scope of the book includes applications and topics of interest related to the simulation of high-lift configurations such as: lift and drag prediction, unsteady aerodynamics, low Reynolds effects, high performance computing, turbulence modelling, flow feature visualization, among others. This book gives a description of the state-of-the-art of computational models for simulation of high-lift configurations. It also shows and discusses numerical results and validation of these computational models. Finally, this book is a good reference for graduate students and researchers interested in the field of simulation of high-lift configurations. Preface 6 Contents 9 Review on High-Lift Systems for Aerodynamic Applications 10 1 Introduction 10 2 Trailing Edge Devices 12 3 Leading Edge Devices 13 4 Physics of High-Lift Systems and Numerical Simulations 14 References 17 Grid Generation About High-Lift Wing Configurations 18 1 Introduction 18 2 CAD Model 19 3 Mesh Generation Guidelines 21 4 Surface Mesh Generation 22 4.1 Farfield and Symmetry Plane 25 4.2 Grid Quality 25 4.3 Deviation from HiLiftPW3 Meshing Guidelines 27 5 Volume Grid Generation 30 6 Final Remarks 34 References 34 Incompressible Solutions About High-Lift Wing Configurations 36 1 Introduction 36 2 Numerical Approach 38 3 Grid Generation 40 4 Solution Process 41 5 Results and Discussion 42 5.1 Force and Moment Comparisons 42 5.2 Pressure Comparisons 45 6 Conclusions and Future Work 50 References 51 Numerical Investigations of the Jaxa High-Lift Configuration Standard Model with MFlow Solver 53 1 Introduction 54 2 Geometry and Computational Grids 55 3 Numerical Methods 56 4 Results 58 4.1 The Performance of Massively Parallel Computing 58 4.2 The Effects of Nacelle and Pylon Assembled 59 5 Conclusions 68 References 72 Time-Resolved Adaptive Direct FEM Simulation of High-Lift Aircraft Configurations 74 1 Introduction 75 2 Simulation Methodology 78 2.1 The cG(1)cG(1) Method 78 2.2 The Adaptive Algorithm 80 2.3 A Posteriori Error Estimate for cG(1)cG(1) 80 2.4 The Do-Nothing Error Estimate and Indicator 81 2.5 Turbulent Boundary Layers 82 2.6 Numerical Tripping 83 2.7 The FEniCS-HPC Finite Element Computational Framework 83 3 Results 84 3.1 Aerodynamic Forces 85 3.2 Pressure Coefficients 86 3.3 Flow and Adaptive Mesh Refinement Visualization 90 4 Conclusions 97 References 98 RANS Simulations of the High Lift Common Research Model with Open-Source Code SU2 100 1 Introduction 101 2 NASA's Common Research Model 103 3 Numerical Methods 104 3.1 Stanford University Unstructured (SU2) 104 3.2 Turbulence Modelling 105 3.3 Computational Resources 105 3.4 Geometry Description and Grids 106 3.5 Geometry 107 4 Results and Discussion 109 5 Conclusions 117 References 117 Front Matter ....Pages i-xi Review on High-Lift Systems for Aerodynamic Applications (A. Matiz-Chicacausa, C. A. Sedano)....Pages 1-8 Grid Generation About High-Lift Wing Configurations (Nirajan Adhikari, D. Stephen Nichols)....Pages 9-26 Incompressible Solutions About High-Lift Wing Configurations (Nirajan Adhikari, D. Stephen Nichols)....Pages 27-43 Numerical Investigations of the Jaxa High-Lift Configuration Standard Model with MFlow Solver (Jiangtao Chen, Jian Zhang, Jing Tang, Yaobing Zhang)....Pages 45-65 Time-Resolved Adaptive Direct FEM Simulation of High-Lift Aircraft Configurations (Johan Jansson, Ezhilmathi Krishnasamy, Massimiliano Leoni, Niclas Jansson, Johan Hoffman)....Pages 67-92 RANS Simulations of the High Lift Common Research Model with Open-Source Code SU2 (A. Matiz-Chicacausa, J. Escobar, D. Velasco, N. Rojas, C. Sedano)....Pages 93-111