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REPORT OF ADVISORY COUNCIL TO IDMEC:

THE RESEARCH AT THE IST-BRANCH OF IDMEC IN 2003

Line 8 - Laboratory and Simulation in Energy and Fluids(LASEF):

 

This group is led by Prof. J. Pereira and consists of six senior and research staff (4 professors and 2 post-doc research assistants) and six research students. Its major area of activity is in the development and application of CFD (Navier-Stokes codes for simulation of viscous and turbulent flows) and their validation by measurement. Much of the work focuses on numerical aspects of CFD, particularly accuracy, convergence and efficiency of methods. The group has a very good record of publication of their results in international journals, averaging more than two per professor over the year.

The Laboratory has now built up the Beowulf Parallel Processor computer system to more than 32 nodes. However this system is no longer ‘state of the art’ since it consists of a cluster of separate computers linked by a fast ‘bus’ rather than the latest technology of a stack of processor boards in a single frame. The older technology of a cluster generates a considerable amount of heat and there is an urgent need to provide air conditioning of the computer room if the system is to continue to be run. Alternatively consideration should be given to the group acquiring a multi-processor board stack to replace the cluster system. EC funding is increasingly difficult to obtain generally and particularly for computing equipment which the Commission does not believe that it should fund.

LASEF also has Digital Particle Image Velocimetry (DPIV equipment) which is a major asset in validation of CFD. More support for the laboratory infrastructure to back-up this equipment continues to be important.

 

2004-09-14, IDMEC Scientific Advisory Council

 


 

REPORT OF ADVISORY COUNCIL TO IDMEC:

THE RESEARCH AT THE IST-BRANCH OF IDMEC IN 2002

Line 8 - Laboratory and Simulation in Energy and Fluids(LASEF):

 

This research group is led by Professor Pereira and is of similar size to line 6. The group is sustaining its work in fundamental fluid mechanics research. The majority of this is in the area of CFD, developing and validating finite difference/volume codes for incompressible and compressible flows. Turbulence modelling methods (Reynolds Average and Large Eddy Simulation) are being used in much of this work. The research is at an internationally competitive level and the group is continuing to publish well in international journals and conference proceedings.

The parallel computing cluster was demonstrated. It must be noted however that this cluster together with the other PCs in the CFD laboratory generates a very large amount of heat. At present the room is not air-conditioned and on the day that we visited it (September) the room temperature was close to 40o and the maximum operating temperature for the computers (and probably also the researchers). There is a significant amount of capital and work in this lab and it is recommended that some air conditioning is installed as a priority. (Portable air conditioning is relatively inexpensive compared with the equipment at risk).

The group also has experimental laboratory equipment such as LDA and PIV (not viewed this year). It was commented in last year’s review that the state of the laboratory infrastructure was very poor preventing use of this equipment. This situation has not improved and may possibly have deteriorated further due to shortage of technician support, also commented on last year. It is strongly recommended that support is given to the general area of laboratory infrastructure since at present good equipment is unable to be properly utilised.

2003-09-16, IDMEC Scientific Advisory Council

 


 

 

REPORT OF ADVISORY COUNCIL TO IDMEC:

THE RESEARCH AT THE IST-BRANCH OF IDMEC IN 2001

The Scientific Advisory Council for the Instituto de Engenharia Mecânica (IDMEC) consisted of Prof. Pauli Pedersen, Prof. Peter Fleming, Prof. Ingo Romey, Prof. J. Michael Graham and Prof. Paul Drews in 2002. The Council met on September 16 and 17, 2002 at Instituto Superior Técnico (IST) in Lisbon, Portugal to carry out an assessment of the scientific work conducted at the IST-branch of IDMEC in 2001.

Line 8 - Laboratory of Simulation in Energy and Fluids.

 

This research group is led by Professor Pereira and is of similar size to line 6. The group is very active in fundamental fluid mechanics research, particularly development of CFD working with finite difference/volume in-house codes for both low speed and compressible flow. Part of the work involves turbulence modelling using Reynolds Average and Large Eddy Simulation methods. The majority of the work appears to be computational and this side is operating competitively with external contacts. A parallel computing cluster is being assembled.The group is also being reasonably well supplied with experimental equipment such as LDA and PIV, but at present is restricted by the need to bring laboratory facilities to full operability. Shortage of technician support appears to be a relevant factor here and it is recommended that increased support in this area is considered.The group has a high number of research publications in international journals.

 

2002-09-17, IDMEC Scientific Advisory Council

 

 

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