Assingnare Locus

Assignare Locus, the computer scientists equivalent of Expecto Patronum. This is the final blog in the trilogy, I am going to summarise the rest of the exciting experience I had in Slovenia along with a full description of the final

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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. http://en.wikipedia.org/wiki/Semidefinite_programming) .

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Girish Ramesh

Tokamaks, visualization, ParaView, high performance computing (HPC) and parallelism. Phew! It’s been a whirlwind of a month as I wind up the first half of my project “ParaView plugin for fusion data structures”.

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Allah Rakha

Wind barriers are artificial structures designed for wind protection. Their function is to reduce wind velocity within a certain distance. The numerical simulations were set to simulate the wind barrier. For this Computational Fluid Dynamics (CFD) simulation we applied cell-centered numerics, a segregated approach on a collocated, unstructured grid. The three-dimensional finite volume method was used for reynold average navier stokes equations (RANS) equation discretization. This computational study of fluid turbulence of wind barriers was done by using well-known CFD models.

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Hosting Sites & Projects

CINECA

Successful applicants will have the opportunity to spend two months at one of the following hosting sites, working on these projects:   CINECA  –  Consorzio Interuniversitario Bologna,Italy http://www.cineca.it/en Visualizing the results of the project “The way to heating the solar

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Presentations from Slovenia

Here are the presentations from the Three Musketeers who completed their projects in Slovenia, Luna, Evguenia & Mathi. Luna Evguenia Mathi Please follow and like us:

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If you can visualize the shape, you can understand the system

James Clerk Maxwell (1831-1879) was a Scottish theoretical physicist. His most prominent achievement was the formulation of a set of equations over which we walked in the hallway of James Clerk Maxwell building at EPCC supercomputing centre (University of Edinburgh). His

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Discovering the Energy of the Future

The essence of our projects is adding new functionality to existing software. However, as software is only a means to an end, a question arises right away: what is it going to be used for? The answer is an exciting

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Site Spotlight: Slovenia

PRACE Summer of HPC (SoHPC) is held at the University of Ljubljana, Faculty of Mechanical Engineering (ULFME) that hosts the largest HPC facility of research and education in Slovenia. ULFME is in charge of the management and/or coordination of the

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Universal Access Layer Reader

Upgrades of the VisIt Universal Access Layer reader plugin Location: University of Ljubljana, Faculty of mechanical engineering (ULFME), Ljubljana, Slovenia Project Abstract: This project is about programming in C++ with XSLT code generation. The aim is to extend existing program (UAL database reader

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Wind Loading on a Solar Tracker

Wind Loading on a Solar Tracker Location: University of Ljubljana, Faculty of mechanical engineering (ULFME), Ljubljana, Slovenia Project Abstract: Solar trackers are usually singly supported slender constructions with large platform on which solar cells for production of electricity are mounted. Sun tracker structure

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Scientific Workflows

This project is about programming in Java. The aim is to extend existing program (actor) running under Kepler workflow engine to be able to control visualizations with VisIt.

Kepler provides graphical user interface (GUI) for describing information flow between computing units called “actors”. An actor can be encapsulated code submitted to HPC/GRID or, in our case, VisIt visualization tool. VisIt provides a session configuration that can facilitate visualization with applied data operators, window positions, ranges, labelling, etc, to be stored/restored for reuse.

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