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18 March 2010

This technology involves the use of lasers which illustrate the movement of tracer particles in the air flow. This is digitally recorded to provide an incredibly accurate analysis of airflow at any given point.

Visualisation of flow structures in X, Y and Z planes within the tunnel allows direct measurement of local flow velocity vectors, as well as accurately validating CFD predictions of velocity and vorticity fields.

Post-processing and comparison to CFD calculations is streamlined while PIV begins at short notice with a quick start-up time and, thanks to seeding technology, no clean-up after use enables normal testing to resume immediately.

As well as PIV, TMG’s wind tunnels also feature Continuous Motion and High Speed Data Acquisition (HDSA) systems to provide higher levels of data more efficiently than standard win tunnels.

In Continuous Motion mode, a user-defined programme of ride height, yaw, roll, steer and individual pre-load changes provides continuous motion on a predefined trajectory while the HSDA system is continuously acquiring data at high frequency.

This allows realistic road or track analysis, reducing tunnel time by as much as 70% and increasing the amount of useful data from each individual test compared to standard motion and acquisition systems.

All these features are available on our two wind tunnels, one of which is capable of taking a full standard-sized car while both are optimized for 60% models.

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