Revision as of 10:38, 11 July 2007 by Rui
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- Author: Tony Saad
- Date written: Apr 2001
- Date Reviewed: Dec 2005
- Date donated: Dec 2005
- Summary: This package includes an introduction to turbulence modeling covering first order models and second order models. A presentation is also included on the fundamental features of turbulent flows.
- Author: Burley Wang
- Date written: Dec 2000
- Date donated: Nov 2005
- Summary: This is an old Fluent FAQ written by Burley Wang for CFD Online back in 2000. The FAQ was never finished and it was never published either. It is based on questions and answers found on the Fluent forum. Use it to cut-and-paste relevant things from into the Fluent FAQ.
- Author: Jonas Larsson
- Date written: Dec 1998
- Date donated: Nov 2005
- Summary: The first part of Jonas Larsson's PhD thesis from Chalmers University, Gothenburg. The thesis excludes papers which are copyrighted by ASME etc. It covers some basics on governing equations, turbine blade heat transfer and descriptions of several low-Re two-equation models (Chien model, Launder-Sharma, Nagano-Tagawa, Shih, ...) The report also includes various model improvements like the Kato-Launder modification, the Yap correction etc.
- Author: Ioannis Nousis
- Date written: Sep 2000
- Date donated: Jan 2006
- Summary: The MSc thesis of Ioannis Nousis at University UPMC, France. The work consists in validating a Reynolds stress turbulence closure on airfoil geometries for transonic compressible viscous flow regimes. Prediction of airfoil aerodynamic performance for several test-cases (NACA 0012 - RAE 2822). Validation of the turbulence model against wind tunnel experiments. A digitized experimental data base is included in the Annexes. Key words: transonic viscous flows, numerical simulation, external aerodynamics, shoc wave-boundary layer interaction, biharmonic structured grid.
- Author: Nina Shokina
- Date written: May 2000
- Date donated: Mar 2006
- Summary: The PhD thesis of Nina Shokina (Technical University of Darmstadt, Germany). The work is devoted to the numerical modelling of multi-dimensional steady ideal gas and fluid flows using adaptive grids.
- Author: Rui Igreja
- Date written: June 2007
- Date donated: July 2007
- Summary: Rui Igreja's master thesis at the University of Aveiro, Portugal.
Commonly used methods for injection moulding simulation involve a considerable number of simplifications, leading to a significant reduction of the computational effort but, in some cases also to limitations. In this work, Reaction Injection Moulding (RIM) simulations are performed with a minimum of simplifications, by using the general purpose CFD software package CFX, designed for numerical simulation of fluid flow and heat and mass transfer.
The CFX’s homogeneous multiphase flow model, which is generally considered to be the appropriate choice for modelling free surface flows where the phases are completely stratified and the interface is well defined, is shown to be unable to model the filling process correctly. This problem is overcome through the implementation of the inhomogeneous model in combination with the free-slip boundary condition for the air phase.
The cure reaction is implemented in the code as a transport equation for an additional scalar variable, with a source term. Various transient and advection schemes are tested to determine which ones produce the most accurate results.
Finally, the mass conservation, momentum, cure and energy equations are implemented all together to simulate the simultaneous filling and curing processes present in the RIM process. The obtained numerical results show a good global accuracy when compared with other available numerical and experimental results, though considerably long computation times are required to perform the simulations.