DLR Institute of Propulsion Technology

Mit 66 Jahren, da fängt das Leben an…. In 66 Jahren steckt aber auch schon eine ganze Menge Geschichte. Am 01.03.1959 wurde unser Institut gegründet. Aus dem Institut für Thermodynamik und dem Institut für Strahlantriebe und Gasturbinen wurde damals das Institut für Luftstrahlantriebe. Nur vier Monate später stand der damalige Bundesverteidigungsminister Franz Josef Strauß mit einem großen Spaten in der Hand zwischen politischen und wissenschaftlichen Vertretern auf einer Brachfläche in Köln-Wahnheide. 𝗠𝗶𝘁 𝗱𝗶𝗲𝘀𝗲𝗺 𝗦𝗽𝗮𝘁𝗲𝗻𝘀𝘁𝗶𝗰𝗵 𝗯𝗲𝗴𝗮𝗻𝗻 𝗱𝗲𝗿 𝗪𝗶𝗲𝗱𝗲𝗿𝗮𝘂𝗳𝗯𝗮𝘂 𝗱𝗲𝗿 𝗗𝗲𝘂𝘁𝘀𝗰𝗵𝗲𝗻 𝗩𝗲𝗿𝘀𝘂𝗰𝗵𝘀𝗮𝗻𝘀𝘁𝗮𝗹𝘁 𝗳ü𝗿 𝗟𝘂𝗳𝘁- 𝘂𝗻𝗱 𝗥𝗮𝘂𝗺𝗳𝗮𝗵𝗿𝘁 (heute Deutsches Zentrum für Luft-und Raumfahrt e.V.) nach dem zweiten Weltkrieg und der Aufbau unseres heutigen Zuhauses am #DLR-Standortort Köln. Fast wäre der erste Spatenstich am Flughafen Essen-Mülheim erfolgt, aber aus Gründen der Flugsicherung und der ungeordneten Besitzverhältnisse entschied man sich schließlich für das Gelände neben dem Flughafen Köln/Bonn. Zu Beginn war es das einzige Gebäude auf dem Gelände, und die rund 30 wissenschaftlichen Mitarbeitenden des Instituts teilten sich die Büros mit dem Vorstand. 1977 folgte die Umbenennung in 𝗜𝗻𝘀𝘁𝗶𝘁𝘂𝘁 𝗳ü𝗿 𝗔𝗻𝘁𝗿𝗶𝗲𝗯𝘀𝘁𝗲𝗰𝗵𝗻𝗶𝗸. 𝗛𝗲𝘂𝘁𝗲 𝗳𝗼𝗿𝘀𝗰𝗵𝗲𝗻 ü𝗯𝗲𝗿 𝟮𝟯𝟬 𝗠𝗶𝘁𝗮𝗿𝗯𝗲𝗶𝘁𝗲𝗿 𝗮𝗻 𝗯𝘂𝗻𝗱𝗲𝘀𝘄𝗲𝗶𝘁 𝘃𝗶𝗲𝗿 𝗦𝘁𝗮𝗻𝗱𝗼𝗿𝘁𝗲𝗻 𝗮𝗻 𝗶𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲𝗻 𝗔𝗻𝘁𝗿𝗶𝗲𝗯𝘀𝗹ö𝘀𝘂𝗻𝗴𝗲𝗻 𝘂𝗻𝗱 𝗚𝗮𝘀𝘁𝘂𝗿𝗯𝗶𝗻𝗲𝗻𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝗻 𝗳ü𝗿 𝗲𝗶𝗻𝗲 𝗸𝗹𝗶𝗺𝗮𝗳𝗿𝗲𝘂𝗻𝗱𝗹𝗶𝗰𝗵𝗲 𝗟𝘂𝗳𝘁𝗳𝗮𝗵𝗿𝘁. Es ist den bisherigen Institutsdirektoren Gert Winterfeld (1970-1986), Heinz Kruse (komm.1987), Heinrich Weyer (1988-2003), Reinhardt Mönig (2003-2022) sowie Dr.-Ing. Andreas Döpelheuer und Bertram Janus (komm. 2023 -2024) zu verdanken, dass sie das Institut zu einer 𝗶𝗻𝘁𝗲𝗿𝗻𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗳ü𝗵𝗿𝗲𝗻𝗱𝗲𝗻 𝗘𝗶𝗻𝗿𝗶𝗰𝗵𝘁𝘂𝗻𝗴 𝗳ü𝗿 𝗱𝗶𝗲 𝗙𝗼𝗿𝘀𝗰𝗵𝘂𝗻𝗴 𝘂𝗻𝗱 𝗩𝗮𝗹𝗶𝗱𝗶𝗲𝗿𝘂𝗻𝗴 𝘃𝗼𝗻 𝗙𝗹𝘂𝗴𝗮𝗻𝘁𝗿𝗶𝗲𝗯𝗲𝗻 𝗮𝘂𝗳𝗴𝗲𝗯𝗮𝘂𝘁 𝗵𝗮𝗯𝗲𝗻. Heute decken wir die gesamte Komplexität und Vielseitigkeit von Gasturbinen ab - und eines ist sicher: Mit 66 ist noch lange nicht Schluss.

Are you a student eager to contribute to the future of climate-compatible propulsion systems?   Our Fan and Compressor Department at #DLR site Cologne is offering an exciting opportunity to complete your Bachelor's or Master's thesis as part of an international team. Your research will focus on the 𝗰𝗼𝗻𝗰𝗲𝗽𝘁𝘂𝗮𝗹 𝗱𝗲𝘀𝗶𝗴𝗻 𝗼𝗳 𝗲𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹𝗹𝘆-𝗱𝗿𝗶𝘃𝗲𝗻 𝗳𝗮𝗻𝘀 𝘄𝗶𝘁𝗵 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗵𝗲𝗮𝘁 𝗲𝘅𝗰𝗵𝗮𝗻𝗴𝗲𝗿𝘀, a key innovation in sustainable aero-engine propulsion.   If you're motivated to expand your knowledge in this cutting-edge field, we encourage you to apply! 👉 For any question, please contact Mavroudis D. Kavvalos.

📣 𝗝𝗼𝗯 𝗮𝗹𝗲𝗿𝘁! In unserer Abteilung 𝗧𝘂𝗿𝗯𝗶𝗻𝗲 𝗮𝗺 𝗗𝗟𝗥-𝗦𝘁𝗮𝗻𝗱𝗼𝗿𝘁 𝗚ö𝘁𝘁𝗶𝗻𝗴𝗲𝗻 untersuchst du die 𝗜𝗻𝘁𝗲𝗿𝗮𝗸𝘁𝗶𝗼𝗻 𝘇𝘄𝗶𝘀𝗰𝗵𝗲𝗻 𝗧𝘂𝗿𝗯𝗶𝗻𝗲 𝘂𝗻𝗱 𝗕𝗿𝗲𝗻𝗻𝗸𝗮𝗺𝗺𝗲𝗿. Neben CFD-Simulationen, initiierst du den Aufbau und die Integration eines Brennkammersimulators an unserem Turbinenprüfstand. Anschließend führen wir im Team experimentelle Arbeiten an einem der weltweit größten Turbinenprüfständen durch und tragen mit den gewonnenen Erkenntnissen zur Wettbewerbsfähigkeit der deutschen Gasturbinenindustrie bei. 👉 𝗦𝘁𝗲𝗹𝗹𝗲𝗻𝗮𝘂𝘀𝘀𝗰𝗵𝗿𝗲𝗶𝗯𝘂𝗻𝗴 𝘂𝗻𝗱 𝗕𝗲𝘄𝗲𝗿𝗯𝘂𝗻𝗴: https://lnkd.in/gaBRxEud

𝗡𝗲𝘄 𝗝𝗼𝘂𝗿𝗻𝗮𝗹 𝗣𝗮𝗽𝗲𝗿 𝗔𝗹𝗲𝗿𝘁! 📣 We’re thrilled to promote the #OpenAccess publication of our new journal paper, 𝘛𝘩𝘦 𝘜𝘯𝘴𝘵𝘦𝘢𝘥𝘺 𝘚𝘩𝘰𝘤𝘬-𝘉𝘰𝘶𝘯𝘥𝘢𝘳𝘺 𝘓𝘢𝘺𝘦𝘳 𝘐𝘯𝘵𝘦𝘳𝘢𝘤𝘵𝘪𝘰𝘯 𝘪𝘯 𝘢 𝘊𝘰𝘮𝘱𝘳𝘦𝘴𝘴𝘰𝘳 𝘊𝘢𝘴𝘤𝘢𝘥𝘦 – 𝘗𝘢𝘳𝘵 3: 𝘔𝘦𝘤𝘩𝘢𝘯𝘪𝘴𝘮𝘴 𝘰𝘧 𝘚𝘩𝘰𝘤𝘬 𝘖𝘴𝘤𝘪𝘭𝘭𝘢𝘵𝘪𝘰𝘯. This is the final installment of our three-part series, originally presented at #ASME #TurboExpo2024. Our research dives into the complex dynamics of unsteady flows and shock oscillations within the Transonic Cascade TEAMAero (TCTA). By leveraging advanced experimental techniques like #PIV and numerical methods such as #LES at the Institute of Propulsion Technology, we uncover the core mechanisms driving continuous shock oscillation in this cascade. 🔹𝗠𝗼𝘁𝗶𝘃𝗮𝘁𝗶𝗼𝗻: Unsteady shock-boundary layer interactions (#SBLI) have long limited the performance and operability of transonic compressor blades. Despite decades of research, the mechanisms causing these phenomena remain elusive. 🔹𝗞𝗲𝘆 𝗜𝗻𝘀𝗶𝗴𝗵𝘁𝘀: - Pressure waves generated within the cascade passage interact with the main shock, causing a breakdown of the flow. - This interaction results in significant variations in inflow angle and operating conditions, impacting blade efficiency. - The high-frequency content of these pressure waves also contributes to subtle shock movement variations throughout the cycle. 🔹𝗢𝘂𝘁𝗹𝗼𝗼𝗸: Although many questions remain open, we hope this publication lays a robust foundation for future research towards a unified theory of unsteady SBLIs in transonic compressor blades. We invite readers to share their thoughts in the comments and reach out with questions or for further discussion! 💡 𝗔𝘂𝘁𝗵𝗼𝗿𝘀: Edwin Munoz, Alexander Hergt, Joachim Klinner, Bjoern Klose, Chris Willert, Volker Gümmer 🔗 Read the Article: https://lnkd.in/gAXV4Gzh 📄 Article DOI: 10.1115/1.4066186 📹 Video DOI: 10.5281/zenodo.14726137 📓 Published in: ASME (The American Society of Mechanical Engineers) #JournalofTurbomachinery

New technologies for cleaner air transport! As part of the research program “Clean Sky 2“ MTU worked on two technology demonstrators: EMVAL and the two-shaft compressor rig. Together with our partners GKN Aerospace Sweden and the German Aerospace Center (DLR), we have further developed the low-pressure turbine and high-pressure compressor components and validated the new technologies. Now they will feed into the next generation of geared turbofan engines. #WeAreEngineExperts

Today we are meeting at the 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲 𝗖𝗼𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝟮𝟬𝟮𝟱 at the DLR Institute of Test and Simulation for Gas Turbines in Augsburg where Florian Herbst spoke about why the key to rapid progress towards climate compatible propulsion technologies lies in understanding and exploiting system integration and interactions. 𝗧𝗵𝗲 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲 𝗽𝗹𝗮𝘆𝘀 𝗮 𝗰𝗲𝗻𝘁𝗿𝗮𝗹 𝗿𝗼𝗹𝗲 𝗮𝗻𝗱 𝗶𝘀 𝘁𝗵𝗲 𝗲𝗻𝗮𝗯𝗹𝗲𝗿 𝗳𝗼𝗿 𝘁𝗵𝗶𝘀 𝗽𝗿𝗼𝗴𝗿𝗲𝘀𝘀 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗻𝗴 𝗱𝗶𝘀𝗰𝗶𝗽𝗹𝗶𝗻𝗲𝘀, 𝗳𝗶𝗱𝗲𝗹𝗶𝘁𝘆 𝗹𝗲𝘃𝗲𝗹𝘀, 𝗮𝗻𝗱 𝗰𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻 𝗱𝗮𝘁𝗮. This is how we can achieve our climate goals while ensuring the economic profitability and affordability of the aviation system.   Thank you Sabine Ardey and Stefan Reh for organising the 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲 𝗖𝗼𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝟮𝟬𝟮𝟱! It was a great opportunity to discuss and learn from each other.   #VirtualEngine #aviation #innovation #sustainability

In a world where product development in technical applications is becoming a increasingly complex process, sophisticated software systems and workflow management environments help engineers to automate processes. But how can these systems be made smarter and more usable? At the AIAA #SciTech conference in Orlando, Florida, we show how Large Language Models #LLMs can be further developed as assistance systems for centralizing expert knowledge. We'll also demonstrate how to enable efficient team collaboration by offloading computations to where the data is stored, eliminating the need to transfer large simulation files between team members. Read here the full papers here: 📄 https://lnkd.in/eeW5gGAR ✍ Stanislaus Reitenbach, Martin Siggel, Martin Bolemant 📄https://lnkd.in/dg2UpAke ✍ Martin Siggel, Stanislaus Reitenbach, Marius Bröcker, Jakob Philipp Haug, Matthias Schuff

𝗡𝗲𝘄 𝘀𝘁𝘂𝗱𝘆 𝗽𝗿𝗲𝗱𝗶𝗰𝘁𝘀 𝗹𝗮𝗯𝘆𝗿𝗶𝗻𝘁𝗵 𝘀𝗲𝗮𝗹 𝗳𝗹𝘂𝘁𝘁𝗲𝗿 𝘂𝘀𝗶𝗻𝗴 𝗖𝗙𝗗!   Labyrinth seals are used in gas turbines to limit leakage flow between rotating and non-rotating components. During gas turbine operation, the flow can cause dangerous oscillations of the structure.   To predict this disadvantage and prevent damage to the components, our colleague Pierre Sivel studied a 𝗹𝗼𝘄-𝗠𝗮𝗰𝗵 𝗽𝗿𝗲𝗰𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻𝗲𝗱 𝗵𝗮𝗿𝗺𝗼𝗻𝗶𝗰 𝗯𝗮𝗹𝗮𝗻𝗰𝗲 𝘀𝗼𝗹𝘃𝗲𝗿 𝘁𝗼 𝗶𝗺𝗽𝗿𝗼𝘃𝗲 𝘁𝗵𝗲 𝗽𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝗼𝗻 𝗮𝗰𝗰𝘂𝗿𝗮𝗰𝘆 𝗮𝗻𝗱 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗲 𝘁𝗶𝗺𝗲 𝗶𝗻 𝗳𝗹𝘂𝘁𝘁𝗲𝗿 𝘀𝗶𝗺𝘂𝗹𝗮𝘁𝗶𝗼𝗻𝘀. To increase the stiffness of the harmonic balance solver and improve its convergence in the low Mach regime, 𝗮 𝗻𝗼𝘃𝗲𝗹 𝗳𝗿𝗲𝗾𝘂𝗲𝗻𝗰𝘆-𝗱𝗲𝗽𝗲𝗻𝗱𝗲𝗻𝘁 𝗶𝘁𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗽𝗿𝗲𝗰𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻𝗶𝗻𝗴 𝗺𝗲𝘁𝗵𝗼𝗱 𝘄𝗮𝘀 𝗶𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗲𝗱. In addition, the classical Roe scheme was adapted for unsteady low-Mach flows to improve the accuracy of the results. The results were published in the paper A Low Mach Preconditioned Harmonic Balance Solver for Cavity Flutter Computations recently published in the ASME (The American Society of Mechanical Engineers) Journal of Engineering for Gas Turbines and Power   👉 𝗪𝗵𝗮𝘁 𝗱𝗶𝗱 𝗵𝗲 𝗱𝗼?  The adapted harmonic balance solver for low Mach numbers was used to calculate flutter in an academic labyrinth seal experiment. In this case, the frequency-dependent iterative preparation accelerated convergence by about 90%, while the adapted Roe scheme led to changes in the predicted work per cycle of up to 10%.   👉 𝗪𝗵𝗮𝘁'𝘀 𝗻𝗲𝘅𝘁?  This works is a big step towards efficient and accurate flutter predictions in cavities. However, while both methods performed well independently, when combining iterative preconditioning with the adapted Roe scheme, convergence issues emerged, raising new questions for future research on how best to define the preconditioner to avoid this drawback.   📝𝗣𝗮𝗽𝗲𝗿: https://lnkd.in/e3nwMW4b 𝗢𝗽𝗲𝗻 𝗔𝗰𝗰𝗲𝘀𝘀: https://lnkd.in/e63tetD6 *𝘢𝘤𝘤𝘦𝘱𝘵𝘦𝘥 𝘮𝘢𝘯𝘶𝘴𝘤𝘳𝘪𝘱𝘵 ✍ 𝗔𝘂𝘁𝗵𝗼𝗿𝘀: Pierre Sivel, Christian Frey, Hans-Peter Kersken, Dr. Edmund Kügeler  

As we say goodbye to an eventful 2024, we wish all our followers, colleagues and research partners happy holidays and a wonderful start to a prosperous new year!

𝗧𝘂𝗿𝗯𝘂𝗹𝗲𝗻𝗰𝗲 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴 𝘀𝘂𝗽𝗽𝗼𝗿𝘁𝗲𝗱 𝗯𝘆 𝗦𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝗮𝗹 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗠𝗼𝗱𝗲𝗹𝘀 is the session of the next Sci-Fi-Turbo 𝗟𝗶𝘃𝗲 𝗪𝗲𝗯𝗶𝗻𝗮𝗿 by Dr Margaux Boxho from our Sci-Fi-Turbo partner Cenaero. This webinar is open to all! 📅 When? Monday, December 16, 2024 🕒 Time: 3:00 PM (Europe/Berlin) 𝗦𝗶𝗴𝗻 𝘂𝗽 𝗵𝗲𝗿𝗲: https://lnkd.in/eSCYZJA9 The presentation explores #MachineLearning and #DeepLearning techniques as valuable tools for modeling turbulence at different stages. It focuses on two key challenges: Developing a data-driven wall model in the context of wall-modeled Large Eddy Simulations (wmLES) of turbulent separated flows. The second challenge focuses on enhancing turbulence injection methods. 𝗗𝗼 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄 𝘁𝗵𝗲 #𝗛𝗼𝗿𝗶𝘇𝗼𝗻𝗘𝘂𝗿𝗼𝗽𝗲 Sci-Fi-Turbo 𝗣𝗿𝗼𝗷𝗲𝗰𝘁? The #SciFiTurbo project coordinated by the #DLR 𝗜𝗻𝘀𝘁𝗶𝘁𝘂𝘁𝗲 𝗼𝗳 𝗣𝗿𝗼𝗽𝘂𝗹𝘀𝗶𝗼𝗻 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 is revolutionising the development of aircraft engines to pave the way for climate-neutral technologies. 𝗟𝗲𝗮𝗱𝗶𝗻𝗴 𝗿𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗶𝗻𝘀𝘁𝗶𝘁𝘂𝘁𝗶𝗼𝗻𝘀 𝗮𝗻𝗱 𝗶𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝗽𝗮𝗿𝘁𝗻𝗲𝗿𝘀 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿 𝘁𝗼 𝗰𝗿𝗲𝗮𝘁𝗲 𝗮 𝗻𝗲𝘄 𝘁𝘂𝗿𝗯𝗼𝗺𝗮𝗰𝗵𝗶𝗻𝗲𝗿𝘆 𝗱𝗲𝘀𝗶𝗴𝗻 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗲𝘀 by leveraging cutting-edge approaches such as high-performance computing, artificial intelligence (#AI), and high-fidelity simulations (#SRS). #EUHorizon #EUprojects #TurbomachineryDesign