STICHTING DUITS-NEDERLANDSE WINDTUNNELS

Their core work

DNW operates large-scale wind tunnel facilities serving the European aerospace industry, providing experimental aerodynamic testing, flow measurement, and validation services. Their core work involves wind tunnel campaigns for aircraft components — wings, nacelles, tiltrotor configurations, and propulsion intakes — using advanced measurement techniques like Particle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV). They bridge the gap between computational fluid dynamics (CFD) predictions and real-world aerodynamic performance by delivering high-fidelity experimental data that validates simulation models. As a binational German-Dutch foundation, they function as a shared research infrastructure for Europe's aviation sector.

What they specialise in

How they've shifted over time

In their early H2020 period (2017-2018), DNW was involved in strategic infrastructure assessment (RINGO) and general aerodynamic validation work, with keywords centered on aviation research infrastructure, facility gaps, and Flightpath 2050 goals. From 2019 onward, their focus shifted decisively toward applied component testing — UHBR nacelle optimization, tiltrotor intake design, aeroelastic testing, and advanced PIV-based measurement techniques. The trajectory shows a move from infrastructure-level planning to hands-on experimental campaigns for next-generation aircraft configurations, particularly Clean Sky 2 tiltrotor and engine integration work.

DNW is deepening its role in next-generation propulsion testing — UHBR engines, distributed propulsion, and tiltrotor configurations — making them a strong partner for any project needing experimental validation of unconventional aircraft designs.

How they like to work

DNW overwhelmingly operates as a specialist partner rather than a project leader — 10 of 11 projects are as participant, with only NIFTI as coordinator. Their 43 unique partners across 9 countries indicate a broad network, consistent with their role as a shared infrastructure that many different consortia call upon. This means they are easy to bring into a consortium: they know the process, they deliver defined experimental work packages, and they do not compete for project leadership.

DNW has collaborated with 43 distinct partners across 9 European countries, reflecting their position as a go-to wind tunnel facility that multiple Clean Sky 2 and RIA consortia rely on. Their network is heavily concentrated in the European aerospace corridor — likely including major airframers, engine manufacturers, and aerospace research institutes.

What sets them apart

DNW is one of the very few binational (German-Dutch) wind tunnel foundations in Europe, offering large-scale industrial test facilities that most universities and smaller research centers simply cannot replicate. Their combination of advanced non-intrusive measurement capabilities (PIV/PTV) with full-scale wind tunnel infrastructure makes them uniquely positioned to deliver experimental validation data that CFD alone cannot provide. For any consortium needing credible wind tunnel test results — especially for Clean Aviation or next-generation aircraft concepts — DNW is one of a handful of facilities that can actually deliver.

Highlights from their portfolio

• NIFTI
  Their only coordinator role with the largest single budget (EUR 1.41M), focused on their core strength of non-intrusive flow measurement in turbofan intakes using PIV/PTV.
• UHURA
  Substantial budget (EUR 1.21M) for validating unsteady high-lift CFD against wind tunnel data — a textbook example of DNW's bridge role between simulation and experiment.
• DISPROP
  Their most recent project (2021-2023), signaling expansion into distributed propulsion aeroacoustics — a rapidly growing area for future aviation.