Figure 3

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Test systems considered. (a) The film is placed on a single layer backing. Two configurations are tested: foam backing (L = 50 mm). (b) The film is set on a two-layers backing (thickness of the backing layers is respectively 10 mm and 30 mm). (c) An air plenum (L = 200 mm) if formed behind the film. The properties of the media used for these tests are reported in Table 1.
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