Ollitrault M.,French National Center for Scientific Research |
Rannou J.-P.,Altran GmbH
Journal of Atmospheric and Oceanic Technology | Year: 2013
During the first decade of the twenty-first century, more than 6000 Argo floats have been launched over the World Ocean, gathering temperature and salinity data from the upper 2000 m, at a 10-day or so sampling period. Meanwhile their deep displacements can be used to map the ocean circulation at their drifting depth (mostly around 1000 m). A comprehensive processing of the whole Argo dataset collected prior to 1 January 2010 has been performed to produce a world-wide dataset of deep displacements. This numerical atlas, named ANDRO, after a traditional dance of Brittany meaning a swirl, comprises some 600 000 deep displacements. These displacements, based on Argo or GPS surface locations only, havebeen fully checked and corrected for possible errors found in the public Argo data files (due to incorrect decoding or instrumental failure). Park pressures measured by the floats while drifting at depth are preserved in ANDRO (less than 2% of the park pressures are unknown): 63% of the float displacements are in the layer (900, 1100) dbar with a good (more or less uniform) degree of coverage of all the oceans, except around Antarctica (south of 608S). Two deeper layers-(1400, 1600) and (1900, 2100) dbar-are also sampled (11% and 8% of the float displacements, respectively) but with poorer geographical coverage. Grounded cycles (i.e., if the float hits the sea bottom) are excluded. ANDRO is available online as an ASCII file. © 2013 American Meteorological Society.
Agency: Cordis | Branch: H2020 | Program: CS2-IA | Phase: JTI-CS2-2014-CFP01-FRC-02-04 | Award Amount: 529.81K | Year: 2016
The objective of this topic is to set up an industrial and fully automatic optimal design tool, integrating software identified by the Topic Leader, in order to reach TRL6 at the end of the project. This tool has to be dedicated to rotorcraft engine air intake analysis and able to handle multi-objective, multi-parameters and multi-points optimization on a given CATIA CAD. An effective aerodynamic design of the engine air intakes is essential for ensuring a proper air supply to the first stage compressor and thus an efficient behavior of the whole engine installation. However, its optimization has to deal with a lot of requirements and constraints, not always linked to the engine performance itself, but often aiming at improving conflicting criterions. For instance, the engine air intakes design will have some impact as regards the three following different issues: Volume specifications Helicopter manufacturer specifications, along with the airframe performance level required Engine manufacturer specifications, along with the engine performance level required In order to achieve the task, optimization will take into account 3 flight conditions. Among all optimization strategy available, due to CFD solver limited capabilities for adjoint computations, a Surrogate Based Optimization approach is proposed. It allows use of gradient free and global optimization method. Two optimizations are planned during the task: one without Inlet Barrier Filter and a last without. The final objective is to improve flow solution at Air Intake Plane from a distorsion and pressure losses aspect.
Altran GmbH | Date: 2012-03-23
Methods and apparatuses relate to repairing a conduit having a defect and providing the conduit with structural support. A support member may be positioned along the inner surface of a conduit covering a defect. A sealing member may be disposed along a periphery of the support member so as to provide an obstruction to fluid flow between an outer surface of the support member and the inner surface of the conduit. One or more retaining members may apply a suitable pressure to the sealing member and support member to maintain obstruction to fluid flow between the interior and the exterior of the conduit. The support member may provide the repaired conduit with a greater degree of structural integrity and strength at the site of the defect than would otherwise be available.
Altran GmbH | Date: 2012-07-27
Systems and methods for automated testing of a distributed control system are provided. The automated test system includes a master station having a processing unit operably coupled to a user interface and a master wireless unit; and at least one remote station. Each remote station includes at least one output module to send outputs to a unit under test, at least one input module to receive inputs from the unit under test and a remote wireless unit operably coupled to the at least one output module and the at least one input module. The master station is configured to transmit outputs to the remote station by wireless communication and to receive inputs from the remote station by wireless communication. The received inputs are representative of a condition of the unit under test.
Agency: Cordis | Branch: FP7 | Program: CSA-CA | Phase: AAT.2013.7-1. | Award Amount: 1.31M | Year: 2013
Europe, through the High Level Group on Aviation Research, ACARE and the Commission, has a vision for air transport in meeting societal & market needs over the coming 30 years. Central to this is time efficiency, meaning reduced door-to-door journey times, seamless inter-modal connections and reliability. For this Europe will engage in large scale, intensive and coordinated research & innovation. Stakeholders need a full picture of what research is being conducted, of gaps present and how EU funded R&I meets ACARE goals. CATER will be an R&I observatory and policy centre run by an expert group with deep industry knowledge, access to a network of all relevant organisations and excellent information gathering and knowledge management processes and tools. CATER will deliver valuable and insightful reports and recommendations, packaged and disseminated effectively. CATER will conduct an annual review of the state of the art of R&I, identify gaps in the landscape and bottlenecks to innovation and formulate strategic recommendations to address these. It shall review the landscape in the context of the six Activities of the Specific Programme and the Strategic Research & Innovation Agenda of ACARE. It shall provide a dashboard of relevant funding programmes. It shall complement SESAR and other EU research coordination initiatives. CATER will develop a web-site, tool-set and knowledge base that centralises and updates information by way of advanced automated web search tools. The centre shall act as network hub for time efficiency stakeholders enabling them supply and harvest relevant knowledge. Dissemination of the reports and findings shall be through consultation with stakeholder leaders and through the online platform, workshops, outbound communications and piggy-backing on industry events and organisations. The assets developed by CATER are designed for the long term and to be assimilated into some permanent organisation when CATER comes to a close.