Effect of the Wet Outlet Geometry on the Shockwave Position in Supersonic Separators

Abstract

Supersonic separators (3Ss) are applied in gas separation processes. Two‐dimensional simulation is employed to investigate the effect of operational and thermophysical parameters on the shockwave position. In addition, the impact of the cyclonic part and wet outlet geometry is evaluated by proposing four cases. Increasing the length of the cyclonic part exerts positive and negative influences on the performance of the 3S and the pressure recovery coefficient, respectively. The optimum length is determined between 10 and 15 cm. To demonstrate negative effects of wasted air from the wet outlet, its flow has been increased from 3.6 to 8.1 % of the inlet flow. Improved performance of the 3S is obtained by reducing the flow disturbances around the wet outlet and moving the shockwave towards the outlet.

Optimisation study of a supersonic separator considering nonequilibrium condensation behaviour

“…Yang & Wen [10] assumed the size of the particles, which was released from the exit plane of the supersonic nozzle, to track the particle trajectories in a supersonic separator. Majidi & Farhadi [11] used a dry gas flow to study the influence of the drain structure on the position of the shock wave for the supersonic separation. Hu et al [12] numerically investigated the flow structure in a supersonic separator with a reflow channel without considering nonequilibrium condensations.…”

Effect of the Geometry of a Swirl Generator on Energy Loss and Shockwave Position in Arina Nozzle

“…Given that, the provision of a liquid outlet duct in a suitable position is so important. In this area, the authors of the present manuscript studied the effect of wet outlet and cyclonic part geometries on the shockwave position in the 3S numerically. In this way, four different geometries for the 3S were proposed.…”

Discontinuity Capture in One-Dimensional Space Using the Numerical Manifold Method with High-Order Legendre Polynomials

“…Discontinuities are also commonly found in convection-dominated flows, and this type of discontinuity plays a very important role in fluid dynamics. Therefore, extensive research was carried out [1][2][3][4][5]. At present, in computational fluid dynamics, dealing with shock wave problems is mainly achieved by directly solving Navier-Stokes equations by increasing the computing power of the computer, such as quantum computing [6], or solving molecular dynamics problems [7,8].…”