We deal with the dynamic and thermal characteristics of the rarefied flow between two eccentric isothermal cylinders one of which is rotating. A numerical program of direct simulation which is based on a Monte Carlo (DSMC) procedure was adopted and the main results concern the influence of the Knudsen and Mach numbers, and of the eccentricity on the location and extent of the flow separation. Part of the flow domain is shown to be cooler than the wall temperature, and the extent of this region decreases with an increasing gas rarefaction.
Flow separation between rotating eccentric cylinders / DE SOCIO, Luciano; Marino, Luca. - In: EUROPEAN JOURNAL OF MECHANICS. B, FLUIDS. - ISSN 0997-7546. - STAMPA. - 22:(2003), pp. 85-97. [10.1016/S0997-7546(02)00006-7]
Flow separation between rotating eccentric cylinders
DE SOCIO, Luciano;MARINO, Luca
2003
Abstract
We deal with the dynamic and thermal characteristics of the rarefied flow between two eccentric isothermal cylinders one of which is rotating. A numerical program of direct simulation which is based on a Monte Carlo (DSMC) procedure was adopted and the main results concern the influence of the Knudsen and Mach numbers, and of the eccentricity on the location and extent of the flow separation. Part of the flow domain is shown to be cooler than the wall temperature, and the extent of this region decreases with an increasing gas rarefaction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
