Validating dense-gas models recently added to the Computational Fluid Dynamics code Eilmer3 at University of Queensland

Campmans, G.H.P (2013) Validating dense-gas models recently added to the Computational Fluid Dynamics code Eilmer3 at University of Queensland.

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Abstract:At the University of Queensland in the department Queensland Geothermal Energy Centre of Excellence a Computational Fluid Dynamics code named Eilmer3 has been developed. In this code it is recently made possible to alternate the gas model for the calculations. This internship can be roughly divided in three parts: First of all Eilmer3 is used to do simulations on a shock tube with different gas models. Furthermore it is investigated whether Eilmer3 is able to cope with Non-classical gas behavior, according to some authors this might occur in a shock tube for high molecular fluids. Secondly, at the University of Southern Queensland Ghassan Al-Doori did some experiments with a steam ejector. With Eilmer3 he tried to validate his experiments but his model did not yet give the appropriate results. By alternating the gas model it was tried to obtain better results. Only an adjusted ideal gas model did indeed give better results other gas models couldn't converge due to the thermodynamic non-equilibrium. Finally along the way there seemed to be some problems in Eilmer3 with the subsonic in flow boundary condition and the development of the turbulent boundary layer. Both these things are investigated and the subsonic boundary condition could easily be reprogrammed however for the development of the turbulent boundary layer more research was needed which is not conducted due to a lack of time.
Item Type:Internship Report (Master)
Clients:
University of Queensland, Australia
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
Keywords:CFD, gas model, steam ejector, shock tube
Link to this item:http://purl.utwente.nl/essays/69335
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