2506 平行におかれた2円管から流出する噴流(G05-2 噴流(2),G05 流体工学)  [in Japanese] 2506 Jet Flow Issuing from Two Parallel pipes  [in Japanese]

The flow visualization of the pulsating the parallel jet issuing from two circular pipes was conducted by the LIF method. As a result, it has been reconfirmed that the jet diffusion is promoted by adding the pulsation and this tendency is remarkable in the horizontal direction of the jets. In order to investigate the effects of the pulsation on the structure contained in the jet flow, the wavelet multi-resolution was carried out. From this analysis it has been found that the large scale structure is divided into a small one, by adding the pulsation.