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DNW's flow visualization expertise on TV to show the effectiveness of different mouth masks
Following our previous work on the visualization of aerosols in July, DNW has participated in an episode of the Topdoks TV programme that aimed to show the effectiveness of different mouth masks. Rachel, one of the two presenters, tried on different types of mouth masks and coughed in them to test their particle retention. DNW’s expertise in flow visualization was applied to make particles expelled while coughing visible. The set-up installed by DNW consisted of UV lights and filters for the cameras. The post-processing of images was also carried out by DNW. The full episode can be viewed here, starting at minute 8:40 (in Dutch).
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In Memoriam Christophe Hermans
It is with great sadness and deep regret that we received the news of the passing of our director Christophe Hermans on Sunday 24 January 2021.
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DNW coordinating Horizon 2020 NIFTI R&I programme
NIFTI
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NIFTI (Non-Intrusive Flow distortion measurements within a Turbofan Intake) is an action launched under Grant Agreement 864911 of the European Union’s Horizon 2020 research and innovation programme. NIFTI aims to advance the state of the art in non-intrusive inlet flow distortion measurements for modern, civil aero-engines. -
Joost Hakkaart Director of DNW
It is our pleasure to announce that as per 01 May 2021 Joost Hakkaart has been appointed director of DNW – the German-Dutch Wind Tunnels foundation, a collaboration between the Royal Netherlands Aerospace Center (Royal NLR) and the German Aerospace Center (DLR). Together with Andreas Bergmann, DLR director of DNW, they form the management of DNW.
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Visit of the Ministry of Economic Affairs
On 11 June 2021, a delegation of the Ministry of Economic Affairs and Climate Policy visited the Large Low-Speed Facility LLF of DNW during an introductory site visit hosted by NLR. The delegation, headed by Jetske Verkerk (MT-member Innovation and knowledge), included Hendrik Jan Tiecken and Niek Lobé (shown in the photo from left to right). Niek is responsible for Aerospace innovation within the directorate Innovation and Knowledge and as such is the coordinator for NLR within the Ministry and the new observer in the DNW Board on behalf of the Ministry of Economic Affairs and Climate Policy, replacing Mr. Gerben Klein Lebbink.
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Police and Police Academy partners in smart mobility centre in Marknesse
Police and Police Academy partners in smart mobility centre in Marknesse
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On 19 August 2021, the police and the Police Academy signed a declaration of intent to become partners in the Smart Mobility and Infrastructure knowledge and Test Centre in Marknesse. With this, the Police have indicated to investigate whether the Centre for Enforcement and Mobility can be moved from Lelystad to the MITC Marknesse and, together with NLR, DNW and RDW, build the innovative knowledge and test centre in the field of smart mobility and infrastructure. -
Phase 1 upgrade of the DNW-HST completed!
To improve both flow quality and test productivity, three major components of our large transonic wind tunnel are upgraded:
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Visit mayor and councilors of the municipality of Noord Oost Polder
On 26 October 2021 the Mayor and councilors of the municipality of Noord Oost Polder visited NLR and DNW. During a presentation they were informed by NLR’s CFO Mr. L. Esselman about the NLR strategy 2022-2025 and Division Manager Collin Beers updated them on the industry/growing fund. At DNW a short presentation on the plans for development of a Smart Mobility Test Centre was given. The visit was closed with a visit to the NLR facility and the DNW wind tunnel LLF.
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Gender Equality Plan
The Foundation German-Dutch Wind Tunnels DNW underlines the importance the European Union gives to gender equality. DNW was founded by Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) and Koninklijk Nederlands Lucht- en Ruimtevaartcentrum (NLR) and DNW staff is seconded by these two institutes to DNW. Although DNW does not have its own staff, it is fully committed to enhance gender equality in the organization.
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ALVAR Laminar Flow Control Wind Tunnel Test Completed
A major milestone within the Clean Sky 2 project ALVAR has been achieved by successfully completing wind tunnel testing in the DNW-LLF. The ALVAR project aims at demonstrating technology readiness for a novel suction skin structure, the tailored skin single duct (TSSD). The TSSD skin is used in hybrid laminar flow control to delay laminar to turbulent transition of the flow and reduce aerodynamic drag. Tests were conducted to check the effectiveness of the TSSD concept in its ability to stabilise a laminar boundary layer at high Reynolds numbers. The 1:1 scale vertical tail plane model with novel TSSD suction nose in the leading edge was provided by the DLR and represents a relevant aircraft structure to test the TSSD technology. Laminar flow was confirmed by infrared thermography and the TSSD panel performed as predicted. These results will pave the way for introducing the technology on future large commercial aircraft which could potentially reduce fuel consumption by 12-15%. The two-week wind-tunnel test campaign at the DNW-LLF is the high point of the work performed over the last year by DNW staff together with scientists from the Institute of Fluid Mechanics at TU-Braunschweig and the German Aerospace Center, DLR. The ALVAR project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 882646.
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