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Unique wind tunnel test for slower landing approaches

Unique wind tunnel test for slower landing approaches

12. February 2014

Slower landing approaches by aircraft lead to less noise. How slow, steep and hence quiet a modern commercial aircraft can arrive at a destination airport is determined by the performance of the high-lift system with its retractable slats and flaps on the wings. Another advantage of reduced landing speeds is that shorter runways can be used. The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) has joined with Airbus, and the European Transonic Wind Tunnel (ETW) in the three-part project HINVA (High lift INflight VAlidation), consisting of wind tunnel experiments, flight tests and computer simulations. The aim is to combine computer models and wind tunnel tests to substantially improve predictions of high-lift performance and hence pave the way for slower and quieter approach flights. In early February, the project performed unique wind tunnel experiments at cryogenic temperatures in the ETW in Cologne. Equipped with laser measurement technology and other advanced measurement systems, the researchers achieved hitherto unknown precision in detecting the flowfield around an Airbus A320 with extended landing flaps and slats under flight-representative conditions. The researchers had constructed a high precision wind tunnel model specifically for the tests, based on flow measurements performed during in-flight tests with the DLR A320 ATRA research aircraft.

Wind turbines and solar power plants – where to construct which system?

7. February 2014

The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) has released a free version of the simulation program FreeGreenius.

Energy from the Sun and the wind

13. December 2013

Throughout his doctoral thesis, Marc Röger developed a contactless measuring technique, which measures the heat transfer of solar power plant components. It is for this discovery that he was awarded the DLR Wissenschaftspreis (Award for Contributions made to Science).

DLR begins operating new test facility at Jülich solar tower

17. October 2013

Researchers at DLR have started operating a receiver test facility on the tower of the solar power plant in Jülich. In a solar power plant, solar radiation is converted into heat in the receiver.

German Aerospace Day: Harvesting energy, a life without traffic jams and a world record attempt

12. September 2013

We all want energy to be available when we need it. During German Aerospace Day, energy researchers at DLR will demonstrate how innovative storage devices can be used to efficiently harness energy.

Philae

German Aerospace Day – Comet lander, parabolic flight aircraft and a centrifuge

5. September 2013

Aerospace research covers a broad spectrum of activities – missions to celestial bodies are just as much a part of it as checking the health of astronauts or experimenting in microgravity on parabolic flights.

Langarmzentrifuge

Using the centrifuge for space tourism

20. August 2013

The first tickets have already been sold to space tourists – the passengers, however, will not be as fit or healthy as astronauts, but rather people with greatly varying health conditions. This is why scientists at the German Aerospace Center (DLR) and physicians from Witten/Herdecke University have come together to analyse the prevalent risks in a pilot study. Using a long-arm centrifuge, they subject participants to 15 minutes of the forces that space tourists would encounter during takeoff and landing. The aim of the study is to determine the influence of increased gravity on blood coagulation.

New, globally unique combustor test facility at DLR

New, globally unique combustor test facility at DLR

14. August 2013

The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) is building up its resources for investigating environment-friendly gas turbines and to this end has teamed up with industrial partners Alstom and Rolls-Royce. On 14 August 2013, the three partners attended the groundbreaking ceremony for a modern, globally unique combustor test facility. This signals the start of some 47 million euros of investment in the expansion of the infrastructure at DLR’s Cologne site. The aim of this collaboration is to further increase the efficiency of combustors and at the same time to significantly reduce exhaust gas and noise emissions from gas turbines. Starting in mid-2014, the new high-pressure combustor test facility (Hochdruckbrennkammerprüfstand 5; HBK5) will be used to perform combustor tests that contribute towards the development of future generations of aircraft engines and power generation turbines.

Time for SocialSpace at German Aerospace Day 2013

2. August 2013

Recently, we at the German Aerospace Center DLR and our partner European Space Agency ESA rebranded our SpaceTweetup concept as SocialSpace. Now it's time for our first SocialSpace. We are inviting 60 of our followers on social networks such as Twitter, Facebook, Google+ and other platforms to a 'SocialSpace' as part of German Aerospace Day, on 22 September in Cologne, Germany.

Being ‘social’ with DLR and ESA

1. August 2013

Space Tweetups by the German Aerospace Center, DLR, and the European Space Agency ESA are becoming even more social. Originally conceived as real-life meetups of Twitter followers, they will now be open to participants from all social media channels, and thus called ‘SocialSpace’.