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Aircraft icing is a significant factor in many aircraft accidents and incidents. Ice accretion on the wings has adverse aerodynamic effects, such as loss of lift and control, and ice can also block inlets into key flight sensors. Work by Richard Purvis and his Research Associate, Peter Hicks at UEA, in collaboration with AeroTex UK and QinetiQ, led to better understanding of how the impacts and splashing of water droplets influence the ice that forms on aircraft wings. This led to improved computer prediction codes, which are used by industry to improve design and help satisfy certification requirements.
Cranfield's understanding and modelling of aircraft icing, a critical part of the safety, operation and design protocols for all types of aircraft, has changed the way in which aerospace companies approach the design of new aircraft. Cranfield's research has produced high quality predictive software and an extensive experimental validation database the impact of which is its use in the design, optimisation and certification of aircraft and their components.
The impact of Cranfield's icing research is in the design processes for:
By modelling the formation of micro-bubbles and the flows induced by them, researchers at the University of Cambridge Department of Applied Mathematics and Theoretical Physics developed a new, low-cost nozzle design that could be retrofitted to existing Dissolved Air Flotation (DAF) systems. This new design dramatically improved the performance of DAF systems, used by the water industry for the production of drinking water. Specifically, this research has enabled a substantial increase in throughput and effectiveness of the flotation process, whilst simultaneously providing a dramatic decrease in the energy requirement.
NASA's Cassini mission to Saturn's icy moon Enceladus in 2009-10 investigated the presence of explosive ice geysers towering over the south pole of the planet. The geysers consist of vapour and ice particles which rise up to 1,000 kilometres above Enceladus' surface. The source of these jets has been hotly contested. Cassini's mission was to fly as close as possible to the plumes to search for evidence of sub-surface water containing the building blocks of life.
Mathematical modelling, conducted at Leicester, allowed the mission designers to calculate the possibility of the Cassini Spacecraft colliding with dust from the Enceladus jets, with potentially catastrophic results, enabling the craft to be manoeuvred as close as safely possible to the moon's surface to capture the images it required.
The mission, with an estimated $3.26 billion cost, was successful — gathering evidence that the research team's hypothesis of a subterranean sea on Enceladus was correct — a revelation which has inspired public interest around the world.
Runway stones thrown up by aircraft undercarriage wheels can cause considerable damage to the aircraft structure. A model of runway debris lofting developed at Imperial College has been used for the new A400M military transport aircraft, which Airbus reported was `absolutely needed' during the successful development of a nose wheel debris deflector [5. A]. This deflector dramatically reduces the incidence and severity of the runway debris impacts and the associated maintenance costs and downtime of the new aircraft. Airbus has received 174 orders to date for the A400M. An indication of the cost savings comes from the Hercules C130K, the predecessor of the A400M, which incurred costs of up to £1M for each aircraft on active service in Afghanistan for the repair of runway debris damage. This cost is now eliminated for the Airbus A400M aircraft.
Evaluating the ground-based manoeuvrability of large aircraft is time consuming and costly if explored though industry-developed complete models of ground dynamics. Research by Krauskopf and colleagues from the University of Bristol has shown that applying methods from dynamical systems allow these dynamics to be investigated efficiently and with considerable precision. This approach, and the related purpose-developed software, Dynamical Systems Toolbox, have been adopted by Airbus. It is now fully incorporated in the Airbus Methods and Tools portfolio as a supported tool for the evaluation of proposed works and new designs. The research delivers considerable savings in time and costs for the company. Additionally, this programme of research has delivered research training for Airbus employees and one, who studied for PhD with Krauskopf, now leads the Airbus development and implementation of these mathematical techniques which are being disseminated more widely within the company. There continue to be Bristol EPSRC CASE PhD studentships in collaboration with Airbus co-supervised by Krauskopf (7 in the assessment period).
This case study details the impact of current glaciological research at the University of Aberdeen on the Earth's polar ice sheets on practitioners and services in the non-academic science community, specifically the British Antarctic Survey (BAS) and European Space Agency (ESA). In addition, the research has informed public understanding of the stability of the polar ice caps under the influence of climate change. The beneficiaries of our research are professional scientists in Environmental and Earth Sciences working at BAS and ESA who have used our findings to constrain computer modelling of ice sheet dynamics and to calibrate and validate measurements of ice sheet mass change. We have been involved in major international collaborative field research on the Antarctic and Greenland Ice Sheets to better define the current basal and surface boundaries of the ice sheets and to improve the understanding of the sensitivity of the ice sheets' boundaries to climate change over a range of timescales.
As research led by Professor Martin Siegert at the University of Bristol between 2001 and 2006 has shown, a complex, dynamic and living world exists beneath the thick ice sheets of Antarctica. These pristine aquatic environments are likely to be subject to international exploration and study for decades to come. Siegert and his team not only furthered scientific understanding of subglacial lake systems but also highlighted the potential damage to these environments during direct exploration and demonstrated the need for a formal code of conduct to protect them from contamination or undue disturbance during such work. The research was instrumental in achieving the adoption by the Antarctic Treaty Consultative Meeting in 2011 of a code of conduct presented by the Scientific Committee on Antarctic Research. The code, which is binding on the 50 nations that are signatories to the Treaty, identifies subglacial environments as being of special scientific interest and provides clear guidance to scientists on accessing these fragile ecosystems responsibly. Prior to this agreement, given that traditional deep-ice drilling techniques involve kerosene-based antifreezes, the ecosystems within subglacial lakes and their downstream catchments were in danger of being seriously compromised.
As a consequence of his research on subglacial lakes and in recognition of the impact of his work, Siegert was awarded the 2013 Martha T. Muse Prize by the Tinker Foundation (value $100,000).
Supported by world-leading research, Geography and Earth Sciences' Centre for Glaciology (CfG) operates as a highly-effective hub for providing information to the public concerning the relationships between climate change and Earth's ice masses. The impact of this engagement has been to inform the knowledge base of an international audience of people concerning the reality of climate change and its consequences for the cryosphere. This has been achieved through (i) extensive involvement in television, radio and newspaper coverage, (ii) the design and provision of a broad range of innovative internet-based and social media resources, and (iii) authorship and presentation of lectures, books and articles specifically designed to improve public understanding.
The UCL Department of Chemistry has for many years run a far-reaching programme of outreach and public engagement that has deep roots in the department's research programme. Its schools outreach work has promoted chemistry and science among secondary school children, while contributions to blogs, newspapers, radio, and television have engaged diverse audiences from primary school children to the elderly. Millions of people have viewed television contributions, while tens of thousands have been reached in theatres and science fairs, with positive reviews and feedback confirming a stimulation of public interest in, and understanding of, chemistry.