The results of experiments conducted on a model of the diffuser channel with a generator of «synthetic» jets are presented. The aim of the experiments was to study the effect of «synthetic» jets on the level of losses in the channel. The data is obtained about the degree of decrease in the level of losses in the channel, depending on various parameters of the generator of «synthetic» jets, such as frequency and power. It is found that at a certain speed and a fixed frequency of «synthetic» jets there is an optimum capacity. Exceeding this capacity begins to diminish the effectiveness of the «synthetic» jets. Also, it was found that jets with greater frequency have a greater effect on the flow in the channel. Comparison of the experiment with the calculations conducted using the RANS / ILES method showed that this method of calculation can be applied to such flows. With the help of calculations the influence of the generator of «synthetic» jet was investigated using the regimes that could not be obtained in the experiment. The modes in which application of the generator of «synthetic» jets reduces losses by half were investigated. Also, the effect of shape and position of the outlets for the «synthetic» jet was studied.
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