Intro; Preface; Acknowledgements; Contents; 1 Theoretical Analysis of the Performance of a Solar Chimney Coupled with a Geothermal Heat Exchanger; 1 Introduction; 2 Description of the Solar Chimney; 2.1 Classical Solar Chimney; 2.2 Geothermalâ#x80;#x93;Solar Chimney; 2.2.1 Night Operation; 2.2.2 Daytime Operation; 3 Thermal Modeling of the Heating System; 4 The Collector Theoretical Model; 4.1 For the Classical Solar Chimney; 4.2 For the Hybrid Solar Chimney; 4.3 Night Operation; 4.3.1 Energy Dissipation in the Collector; 4.3.2 Air Exit Velocity (Without Collector Losses)

4.3.3 Air Exit Velocity (with Collector Losses)4.4 Daytime Operation; 5 Numerical Solution; 6 Results and Discussion; 6.1 Validation; 6.2 Performance During Nighttime; 6.2.1 Effect of Collector Radius; 6.2.2 Effect of Water Flow Rate; 6.2.3 Effect of Water Inlet Temperature; 6.2.4 Effect of Collector Losses; 6.3 Plant Performance During Daytime; 6.3.1 Effect of Collector Radius; 6.3.2 Effect of Solar Radiation; 6.3.3 Effect of Water Flow Rate; 6.3.4 Thermal Heat Losses; 6.4 Effect of Heat Exchanger Integration; 6.5 Comparison of Different Operating Modes; 7 Conclusion; References

2 Study of the Turbulence Model Effect on the Airflow Characteristics Inside a Solar Chimney Power Plant1 Introduction; 2 Geometrical Parameters; 3 Numerical Model; 3.1 Boundary Conditions; 3.2 Meshing; 4 Comparison with Experimental Results; 5 Numerical Results; 5.1 Temperature; 5.2 Velocity Magnitude; 5.3 Static Pressure; 5.4 Dynamic Pressure; 5.5 Turbulent Kinetic Energy; 5.6 Turbulent Kinetic Energy Dissipation Rate of the; 6 Conclusion; References; 3 Numerical Study of the Fluid Characteristics Effect on the Penetration of a Negatively Buoyant Jet; 1 Introduction

2 Geometrical Arrangement3 Numerical Method; 4 Fluid Characteristics Study; 4.1 Molecular Diffusivity Effect; 4.1.1 Volume Fraction; 4.1.2 Penetration Depth; 4.1.3 Mixing Layer Between the Jet and the Salt Water; 4.2 Difference of the Density \frac{\Delta \uprho }{\uprho } Effect; 4.2.1 Volume Fraction; 4.2.2 Transient Penetration; 4.2.3 Jet Stationary Profile; 4.3 Kinematic Viscosity of the Salt Water (ν) Effect; 4.3.1 Volume Fraction; 4.3.2 Transient Penetration; 4.3.3 The Jet Stationary Profile; 5 Conclusion; References

4 Computer Simulation of Liquid Motion in a Container Subjected to Sinusoidal Excitation with Different Turbulence Models1 Introduction; 2 Geometry Configuration; 3 Numerical Model; 4 Numerical Results; 4.1 Free Surface Deformation; 4.2 Static Pressure; 4.3 Magnitude Velocity; 4.4 Turbulent Kinetic Energy; 4.5 Turbulent Kinetic Energy Dissipation Rate; 5 Comparison with Experimental Results; 6 Conclusion; References; 5 Numerical Investigation for a Vanned Mixed Flow Turbine Volute Under Steady Conditions; 1 Introduction; 2 Turbine Geometry; 3 Numerical Model; 3.1 Meshing Generation