Fabric air dispersion system (FADS), as a ventilation terminal, can help create a clean and comfortable
indoor environment. Several studies mainly focused on the characteristics of airflow generated by FADS.
However, the effects of the configurations on the airflow characteristics were rarely studied. Based on
our pervious work, the effects of fiber porosity, fiber diameter and supply air flow rate on characteristics
of air velocity and pressure inside FADS were numerically studied and the results were validated by
experiments. It is shown that larger porosity or fiber diameter lead to lower pressure inside and poorer
distribution of air velocity along the length direction of FADS. Higher supply air flow rate aggravates the
non-uniformity of air velocity distribution, and increases the pressure inside. The combined effects of the
three factors should be taken into consideration in order to achieve a uniform distribution of air velocity
along the length direction and reduce fan energy consumption and noise level. Results ofthis study would
be useful to guide the optimum design of FADS in penetration mode to expand its applications, especially
in small enclosed spaces, where air quality, energy conservation and noise level are in high demand.