Flow separation on aircraft wings has been notoriously linked with loss of lift and extra drag. Furthermore, the recent development of larger, more efficient Ultra High Bypass Ratio (UHBR) engines requires slat cut backs at the juncture of the engine pylon, which significantly promotes separation at high angles of attack. WP1.5 of Clean Sky 2 (CS2) Large Passenger Aircraft (LPA) Programme has been dedicated to addressing this very issue by developing active flow control (AFC) strategies. Among the various AFC techniques proposed in the literature, the pulsed jet actuator (PJA) control has been regarded as a particularly promising one as it suppression separation effectively and with much lower mass flow than the continuous blowing actuation. WINGPULSE is specifically designed to unlock the potential of the PJA technique by combining the expertise of UNOTT in wind tunnel experiments, high-fidelity simulations and control design and the cutting-edge infrastructure and expertise of large-scale flow control testing at ILOT. The overarching aim of WINGPULSE is to develop and demonstrate PJA concepts for flow separation control with efficiency beyond the state-of-the-art (reducing the net mass flow by a factor of 3-5. UNOTT and ILOT will bring together their respective expertise in Computational Fluid Dynamics, aerodynamics, high integrity wind tunnel testing and development of novel flow control actuation systems, including pulsed jet actuator systems, to deliver the two models that facilitate the flow control test programme for UHBR integration in Clean Sky LPA WP1.5.3.

X-ray photoelectron spectroscopy (XPS) is one of the most powerful techniques for studying the chemistry at the surface of materials. However, it can only operate under vacuum conditions, far from the cycling pressures of hydrogen storage materials. Even ambient pressure XPS (often referred to as high-pressure XPS) cannot ever reach these sorts of pressures. Instead, we will adopt a novel method for moving a sample between the ultra-high vacuum XPS chamber and a reaction chamber where the materials can be subjected to the hydrogen pressures and temperatures required for hydrogen storage to undergo one or more cycles. The sample is then rapidly returned to the XPS chamber to perform core-level measurements to determine any chemical changes. In this way we can explore degradation mechanisms, the effects of impurities, and other irreversible reactions. Because the material never leaves the instrument, changes can be directly correlated to the cycling process.

Doctoral Training Partnerships: a range of postgraduate training is funded by the Research Councils. For information on current funding routes, see the common terminology at https://www.ukri.org/apply-for-funding/how-we-fund-studentships/. Training grants may be to one organisation or to a consortia of research organisations. This portal will show the lead organisation only.