NIOPLEX: “Non-intrusive Optical Pressure and Loads Extraction for Aerodynamic Analysis”

NIOPLEX will contribute to the development of non-intrusive experimental flow diagnostics to improve the aerodynamic analysis capabilities in wind tunnels. The particular objective of the project is to develop an unprecedented comprehensive diagnostic approach, achieved by a simultaneous measurement of the surface pressure distribution on a model and the velocity and pressure field around it. Currently, Particle Image Velocimetry (PIV) is used to obtain the mean flow field and turbulent fluctuations. The surface pressure can be measured with Pressure Sensitive Paint (PSP), but there is no means to access the pressure inside the flow. The present project focuses in particular on the method of “pressure measurement by PIV” and pursues how it can be developed to a stage that makes it ready for application to industrial problems. Comparison with PSP will determine if the PIV-based approach may be regarded as complementary to PSP or as a possible or partial replacement.

The project ultimately aims to support the design of improved aeronautical transport systems by a better and more flexible flow-pressure diagnostics for aerodynamic performance and aeroacoustic source analysis. These capabilities can impact the design process at an earlier stage with the use of additional experimental data during the development cycle.

NIOPLEX brings nine leading research teams together in a consortium to achieve these objectives. The final results of the project will provide a clear scenario on viable technologies for pressure analysis in aerodynamic flows. The measurement procedures will be demonstrated on test cases relevant to industrial research. Specific measurement protocols will be formulated to ease their use. The results will be made of wide impact by extensive dissemination activities within the academy and among industry.

This project is funded by the 7th Framework Programme of the European Commission under Grant  Agreement 60551.

The project duration is 36 months with a total personnel effort of 230 PM; the total cost is M€ 2.26, with an EU contribution of M€ 1.68.

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