@article{oai:nagoya.repo.nii.ac.jp:00030671,
 author = {Soga, Takeo and Hayashi, Takehiko},
 issue = {2},
 journal = {Memoirs of the School of Engineering, Nagoya University},
 month = {Mar},
 note = {Interaction of free jets from multi-orificies was studied within the frame work of Euler equation. The Piecewise Linear Method was employed as the Euler solver where free jets were issued from square sonic orifices. Impingement of supersonic free jets from two orifices yielded (almost) plane oblique shock waves. Compressed and heated gas behind these shock waves resulted in an intensive secondary jet, which merged into the primary jets. The primary cells of free jets were consequently enlarged. In the case of free jets from four orifices the secondary jet was so intensive that each primary cell was isolated by the oblique shock waves with large shock angle from other primary cells. The secondary cells of the primary jets from the triple points covered the secondary jet. Interactions of the secondary cells and the secondary jet yielded weak oblique shock waves. The oblieque shock waves suffered Mach reflection and yielded a concaved Mach disk (Riemann wave) accompanied with a reverse flow. In the same time, slip flow surrounding the secondary jet converged towards the line of symmetry. This convergence of the slip flow and the resulting reverse flow might be attributed to the decrease of stagnation pressure in the secondary jet, which was caused from the entropy production due to the oblieque shock wave with large shock angle.},
 pages = {267--282},
 title = {Numerical analysis of interaction of supersonic free jets, including formation of reverse flow},
 volume = {44},
 year = {1993}
}