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272 Cătălin Dumitraș et al.
3.2. Results and Discussion
The following results were obtained based on the analysis presented above.
The pressure fields at shoulder level were identified for the shoulder without
fabric, as presented in Fig. 14. This constitutes a reference base for all models
containing the 3D fabrics. From Fig. 14 it results that there is higher pressure
field at the back of the shoulder, possibly caused by a suction effect.
Fig. 14 – Distribution of pressure fields at shoulder level.
The distribution of air velocity at shoulder level is presented in Fig. 15 and
16. High velocity values are identified at the entire shoulder level, rest of the
human body these values are lower. That indicates that the turbulences are
higher in the shoulder area.
Fig. 13 – Air velocity distribution,
general view
Fig. 14 – Air velocity distribution
The use of a 3D fabric with rectangular channels changes the air flow. The
velocity distribution is different in comparison to the situation described for the
shoulder without fabric. The areas characterized by high air velocity are
distanced from the shoulder areas suggested by Figs. 15, 16 and 17.