During the recent miniPSP test entry at ARA the images collected allowed the surface pressure contours over a portion of the ARA reference model wing to be measured. As this wing was relatively highly pressure plotted the PSP data recorded could be calibrated and the post-processing would provide surface contours of the absolute static pressure over the measurement region.
ARA has successfully conducted multiple trials of technology aimed at the miniaturisation of the installation footprint of Pressure-Sensitive Paint systems. This project (miniPSP) has been funded by Innovate UK under the HITEA III framework, where ARA was partnered with the University of Manchester. The most recent trial demonstrated the use of a sub-miniature camera, embedded within a fuselage blister, to measure the surface pressure profile over a section of a wing. Further trials have been conducted which demonstrate the feasibility of such systems for the measurement of pressures within internal model ducts and cavities, along with the potential for use with Model Deformation Measurement Systems and for oil flow visualisations. A final report describing the miniPSP development will be published at the end of the project (June 2017). For more information please contact email@example.com.
In line with customer demands ARA has developed and successfully trialled the use of fluorescent oil flow mixtures for highly detailed surface flow investigations. The viscosity and volatility of the mixtures are specific to the target speed range and provide the potential for full model coverage. These techniques are suitable for use in the investigations of various properties not limited to: shock locations, separation regions, vortex footprints, and internal flows. Images can be taken both during the run as the flow system develops (fig 1a, b) and post-run once the patterns have been set (fig 2a, b, c). This technique provides a higher resolution of the surface streak lines when compared to standard multi-coloured/point oil flow techniques.
In recognition of particular personal or team achievement during the previous year ARA issues annual awards, these are based on staff nominations. For 2016 the winner of the Individual award was Stephen Smith from our Manufacturing Department. The Team of the Year award for 2016 went to the Engineering and Electrical Engineering Department, some of whom are shown in the photograph below being presented their award by Bob Bosher, ARA CEO.
On Friday 24th March in support of the Comic Relief RND2017, the ARA Sports & Social Club held a bake sale and competition. 25 different bakes were entered, ranging from a walnut and cheese bread to an Oreo cake as well as the traditional red nose fairy cakes. A total of £225 was raised for Comic Relief from sales to ARA staff.
Continuing on from 7 successful years as the sole European agent for the pressure-sensitive paint products and services from ISSI (Innovative Scientific Solutions Inc), ARA is pleased to announce the extension of this agreement for 2017.