Wednesday, July 12th, 2017. Time: 15h

Place: C-110 Room, UPC North Campus, Barcelona.

Abstract

There is no doubt about the attractiveness of the augmented and virtual reality technologies, also for the largest IT companies but still it is not clear their real value excepting for entertainment, in the videogame industry.

Nevertheless, there are some initiatives trying to show that it could have some room for these technologies in the AEC sector, as not only an expensive and dazzling novelties, but also to be a useful tool.

This talk would like to contribute to this debate. It includes a review of both technologies, describing of two of the most recent devices, HTC Vive and MS Hololens, as well as software, such as unity 3d and Vuforia, used to create AR/VR experiences, and a couple of examples to assess their potential practical use.

CV of the speakers

Mr. Oscar de Coss, is a civil engineer and has recently finished his Master in Structural and Construction Engineering at the UPC with a work entitled "Augmented reality applied to construction".

Ms. Sara Rebollo is currently finishing her civil engineering degree, and is working in a final thesis about how to apply virtual reality experiences to strength the awareness of the workers about the risks in a building site, as a possible activity in the occupational safety and health plan.

Further information

The three day computational science-centric practical hands on workshop is aimed at Fortran programmers who want to write modern code, or modernize existing codes, to make it more readable and maintainable by encouraging good software engineering practices. Adopting good software practices makes codes more amenable to optimization and parallelization, and the path to making it a community code a whole lot easier.

Topics will include:

-Software engineering for computational science;

-Modern Fortran standards and how to write optimized and efficient Fortran;

-NetCDF and HDF5 scientific file formats for data sharing in Fortran;

-GNU Automake to automate the build process;

-pFUnit unit testing framework for testing Fortran codes;

-Doxygen for Fortran code documentation;

-Git version control for collaborative code development;

-In-memory visualisation using PLplot in Fortran;

-IEEE Floating Point Exception Handling

-Software verification and portability using the NAG Fortran Compiler

-Fortran interoperability with C, Python and R;

-Introduction to parallelism for Fortran;

-Fortran code verification using the CamFort tool;

-Object oriented programming in Fortran 2003.

Place: Room C1001, Building C1, Campus Nord Universitat Politècnica de Catalunya (UPC), C/ Gran Capità, S/N 08034, Barcelona, Spain

Dates: 24/07/2017-26/07/2017 (9-18h)

Note: This course is provided free of charge to all confirmed participants. Attendees are responsible for their own travel and accommodation.

Attendees must bring a laptop with WiFi capabilities in order to connect to the server for the exercises. The laptop can have either Linux or Windows, and if Windows please ensure that MobaXterm (link is external) is installed.
Futher information and registration

Wednesday, July 5th, 2017. Time: 12h.

Place: O.C. Zienkiewicz Conference Room, C1 Building, UPC Campus Nord, Barcelona.

ABSTRACT

Discrete Exterior Calculus is a recent method to discretize partial differential equations using concepts from Differential Geometry and Topology, which allow rewriting equations in an intrinsic manner.

The main steps in such an approach are as follows:

1. Write out the PDE in terms of smooth differential operators.
2. Replace the smooth domain, variables, and operators by their DEC counterparts.
3. Use DEC-based analysis to set up an appropriate linear system of equations.

The resulting linear system can then be solved by existing numerical methods to approximate solutions to the PDE.

SPEAKER CV

Dr. Rafael Herrera Guzmán obtained his Degree in Mathematics at the UNAM in 1993 with the medal “Gabino Barreda”. He is PhD in Mathematics by the Oxford University, England, in 1998. He is a researcher at CIMAT from 2005 and member of the SNI Level II within the Physics, Mathematics and Earth Sciences Area.

Previously, Dr. Herrera has worked at Yale University, University of California at Riverside, Princeton University and City University of New York. He has been awarded with the “Guggenheim Fellowship” (2002-2003) and a “Research Fellowship” by the Japan Society for the Promotion of Science (2005-2006).

New developments in computational aeroacoustics for the simulation of human phonation using the Variational Multiscale Method

by Arnau Pont (CIMNE)
    
Wednesday, June 14th, 2017 - 15h   
O.C. Zienkiewicz Room, C1, Campus Nord UPC, Barcelona
 
Abstract

The numerical calculation of fricative sounds with a FEM code in realistic 3D geometries requires a very fine spatial discretization in order to capture all relevant turbulent scales, which leads to heavy parallel computations. For low speed flows, like in the present case, conservative compressible flow formulations might fail, for which the more affordable incompressible approach is often used. However, most available formulations in Computational Aeroacoustics based on incompressible flow either require modeling acoustic source terms or are not valid at the near field, where flow perturbations are still non-negligible. Therefore, new developments in both incompressible and compressible formulations and the corresponding results will be presented.

https://web.cimne.upc.edu/groups/publicacions/mails/2017/coffee-talks/coffee-talks-2017-06-14.html

The role of the Orthogonal Sub-Grid Scales - Variational Multi-Scale (OSGS-VMS) method in describing the Burgers "turbulence" phenomena

by Camilo Bayona (CIMNE)
    
Wednesday, May 31st, 2017 - 15h   
O.C. Zienkiewicz Room, C1, Campus Nord UPC, Barcelona
 
Abstract
The Orthogonal Sub-Grid Scales-Variational Multi-Scale (OSGS-VMS) method can accurately approximate Burgers "turbulence" (a highly simplified version of the incompressible Navier–Stokes turbulence), only with the addition of purely dissipative numerical terms. The analysis of a one-dimensional Burgers equation in the Fourier space allows to clarify the scale dependence of the numerical diffusion introduced by the OSGS-VMS method. In particular, results can be contrasted with Direct Numerical Simulations (DNS) and with a spectral Large Eddy Simulation (LES).

https://web.cimne.upc.edu/groups/publicacions/mails/2017/coffee-talks/coffee-talks-2017-05-31.html