Search for dissertations about: "Reynolds Average Navier-Stokes RANS"

Showing result 6 - 8 of 8 swedish dissertations containing the words Reynolds Average Navier-Stokes RANS.

2. 6. Important Factors for Accurate Scale-Resolving Simulations of Automotive Aerodynamics

   Author : Petter Ekman; Matts Karlsson; Torbjörn Virdung; Roland Gårdhagen; Adrian Gaylard; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Road transports are responsible for almost 18 % of the greenhouse gas emission in Europe and are today the leading cause of air pollution in cities. Aerodynamic resistance has a significant effect on fuel consumption and hence the emission of vehicles. READ MORE

4. 7. CFD Simulations for Film Cooling : Reduced Models at Engine Like Conditions

   Author : Andreas Bradley; Matts Karlsson; Karl Storck; Linköpings universitet; []
   Keywords : ;

   Abstract : In gas turbines some parts are exposed to combustion gases with temperatures well above the melting temperature of the material. Therefore, various cooling techniques are utilized in order to protect the parts exposed to these hot gases. One such technique, film cooling, is a common and well established way to protect the exposed parts. READ MORE

5. 8. Large Eddy Simulation of Turbulent Flow and Combustion in HCCI Engines

   Author : Rixin Yu; Strömningsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulent combustion; Numerical methods.; LES; Temperature inhomogeneity; HCCI combustion; In-cylinder flow;

   Abstract : This thesis deals with numerical simulations of the turbulent combustion process in Homogeneous Charge Compression Ignition (HCCI) engines. An accurate and computationally efficient Large Eddy Simulation (LES) model was developed and used throughout this thesis to investigate the development of in-cylinder turbulence, temperature stratification, onset of auto-ignition, and development of the reaction fronts. READ MORE