Aerodynamic Study on the Vehicle Shape Parameters with Respect to Ground Simulation (Wissenschaftliche Reihe Fahrzeugtechnik Universität Stuttgart)

Preface
Contents
List of Figures
List of Tables
Formula Symbols
List of Abbreviations
Zusammenfassung
Abstract
1 Introduction
	1.1 Motivation
	1.2 Research Objectives
2 Basic Theories and State of the Art
	2.1 Basic Theories
		2.1.1 Boundary Layer Theories
		2.1.2 Ground Effect
		2.1.3 Aerodynamic Forces of a Ground Vehicle
	2.2 State of the Art
		2.2.1 Previous Investigations on Vehicle Geometric Parameters
		2.2.2 Ground Simulation Technology in Wind Tunnels
		2.2.3 Influence of the Moving Ground Simulation
3 Research Methods and Models
	3.1 Experimental Method
		3.1.1 IFS Model Scale Wind Tunnel
		3.1.2 Test Setup
	3.2 Numerical Method
		3.2.1 Simulation Software
		3.2.2 Boundary Conditions of the Simulations
	3.3 Research Models
		3.3.1 DrivAer Model
		3.3.2 AeroSUV Model
4 Results of the DrivAer Model
	4.1 Baseline Results with Fixed and Moving Ground Simulation
	4.2 Investigated Parameters
	4.3 Parameters at the Vehicle Front
		4.3.1 Geometry Variations at the Vehicle Front
		4.3.2 Engine Hood Slope Angle
		4.3.3 Engine Hood Height
		4.3.4 Front Windscreen Slant Angle
		4.3.5 Sweep Angle
	4.4 Parameters at the Vehicle Cabin
		4.4.1 Geometry Variations at the Vehicle Cabin
		4.4.2 Roof Curvature
		4.4.3 Camber
	4.5 Parameters at the Vehicle Rear End
		4.5.1 Geometry Variations at the Vehicle Rear End
		4.5.2 Trunk Lid Slope Angle
		4.5.3 Trunk Length
		4.5.4 Trunk Height
		4.5.5 Rear Screen Slant Angle
	4.6 Underbody Parameters
		4.6.1 Geometry Variations at the Vehicle Underbody
		4.6.2 Front Underbody Slope Angle
		4.6.3 Wheel Track
		4.6.4 Rear Diffuser Angle
	4.7 Attitude Parameters
		4.7.1 Variations of the Attitude Parameters
		4.7.2 Ride Height
		4.7.3 Pitch Angle
	4.8 Influence on the Cooling Air Flow
	4.9 Conclusions
5 Statistical Analysis of the Parameters
	5.1 Sensitivity Rating of the Parameters
	5.2 Interaction between the Parameters
	5.3 Conclusions
6 Transferability Study on the SUV Model
	6.1 Comparison of the Baseline Results between Fixed and Moving Ground Simulation
	6.2 Investigated Parameters on the AeroSUV Model
	6.3 Results of the Parametric Study
		6.3.1 Trunk Lid Slope Angle
		6.3.2 Trunk Height
		6.3.3 Rear Screen Slant Angle
		6.3.4 Rear Diffuser Angle
		6.3.5 Ride Height
	6.4 Influence on the Cooling Air Flow
	6.5 Conclusions
7 Overall Conclusions
Bibliography