Analysis of supersonic ejector operation : experimental validation and two-phase aspects

This paper deals with comparisons between CFD and experiments for a supersonic ejector. We present good results in terms of entrainment prediction compared to home-made experimental data for an air ejector. Over the whole range of operating conditions, the deviation is below 10% for the k e model. In addition, a first attempt to tackle two-phase aspects was also performe d experimentally and by simulations.

[1]  T. Sriveerakul,et al.  Performance prediction of steam ejector using computational fluid dynamics: Part 1. Validation of the CFD results , 2007 .

[2]  Yann Bartosiewicz,et al.  Numerical assessment of ejector operation for refrigeration applications based on CFD , 2006 .

[3]  Sheldon M. Jeter,et al.  Numerical and Experimental Analysis of Single-Phase and Two-Phase Flow in Ejectors , 2004 .

[4]  Andrew Ooi,et al.  CFD analysis of ejector in a combined ejector cooling system , 2005 .

[5]  Saffa Riffat,et al.  Experimental and CFD modelling of an ejector system for vehicle air conditioning , 1999 .

[6]  T. Sriveerakul,et al.  Performance prediction of steam ejector using computational fluid dynamics: Part 2. Flow structure of a steam ejector influenced by operating pressures and geometries , 2007 .

[7]  Yann Bartosiewicz,et al.  Numerical and Experimental Investigations on Supersonic Ejectors , 2005 .

[8]  Da-Wen Sun,et al.  RECENT DEVELOPMENTS IN THE DESIGN THEORIES AND APPLICATIONS OF EJECTORS - A REVIEW , 1995 .

[9]  Bin-Juine Huang,et al.  A combined-cycle refrigeration system using ejector-cooling cycle as the bottom cycle. , 2001 .

[10]  Yoshiaki Miyazato,et al.  Shock train and pseudo-shock phenomena in internal gas flows , 1999 .

[11]  Saffa Riffat,et al.  Computational fluid dynamics applied to ejector heat pumps , 1996 .

[12]  Satha Aphornratana,et al.  Ejectors: applications in refrigeration technology , 2004 .

[13]  Saffa Riffat,et al.  Recent development in ejector technology—a review , 2005 .