Abstract
Techniques using Coanda effect have been applied to the fluid control devices. In this field, experimental studies were so far performed for the spiral jet obtained by the Coanda jet issuing from a conical cylinder with an annular slit, thrust vectoring of supersonic Coanda jets and so on. It is important from the viewpoints of effective applications to investigate the characteristics of supersonic Coanda jet in detail. In the present study, the effects of pressure ratios and nozzle configurations on the characteristics of the supersonic Coanda jet have been investigated experimentally and numerically. In simula-tions, two-dimensional Navier-Stokes equation were solved using a 2nd-order TVD finite-volume scheme with a 3rd-order three stage Runge-Kutta method for time integration. As a result, the simulated flow fields were compared with experimental data in good agreement qualitatively.
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