Manage tags: 2015Slovenia

All good things must come to an end

It has been a fantastic couple of weeks, but all good things must come to an end. The time has come for the preparation of the final report and the video presentation. My project has reached a satisfactory position and

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Zagreb, Vienna, OpenFoam vs ANSYS

I’ve had a busy and fun couple of weeks. After weeks of wrestling with OpenFOAM I finally got some results comparable to experiment and the commercial CFD software ANSYS. As usual, I’ve been traveling on weekends whenever possible. First the

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Exploring Slovenia: Maribor, Koper, and Ljubljana zoo!

In my third week in Slovenia I was lucky enough to have my girlfriend join me from the UK. We started by going to Maribor, the second largest city in Slovenia. Luckily, Slovenia has an excellent car sharing service so

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Parallel boundary point method: Matlab has surrendered to C++!

After a little bit over a month of coding I can finally state it: Matlab has been knocked out! Both by the serial and parallel version of the C++ code actually. I am satisfied with that. Ever since I started

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Exploring Slovenia: Postojna and Bled

After a week of settling into life in Ljubljana the time came to explore a bit more of Slovenia. My colleague Mircea and I were very kindly taken to Postonja by the Ljubljana site coordinator Leon Kos. Whilst there, I was surprised

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Using open source CFD (OpenFOAM) for turbulence modelling of different wall-bounded flow regimes

Development of the high performance computers (HPC) has made possible conducting numerical simulation of fluid flow of practical interest. Turbulent separated bluff body flows are of great importance for the CFD community. Many turbulence models are developed to properly capture, with some success, the mechanisms found in the flow separation behind a bluff body.
This project aims in testing the ability of the current turbulence models found in the open source CFD (OpenFOAM) for high Reynolds number flows. Unsteady Reynolds Navier-Stokes (URANS) approach will be used for modelling the turbulent separated flows. The work will be done using the HPC resources offered at ULFS. Also, visualization of the results will be carried using ParaView.

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Parallel boundary point method

Semidefinite programming problems are optimization problems where we look for a symmetric matrix that satisfies certain set of linear equations, is positive semi definite (has all eigenvalues non-negative) and yields maximum value of given linear objective function (see e.g. .

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