1. CFD analysis and experimental investigations towards optimizing the parameters of Ranque-Hilsch vortex tube
- Author
-
K. Dinesh, S.N. Ram, Upendra Behera, R. Karunanithi, P.J. Paul, Srinivasan Kasthurirengan, and Subhash Jacob
- Subjects
Fluid Flow and Transfer Processes ,Centre for Cryogenic Technology ,Vortex tube ,Materials science ,business.industry ,Mechanical Engineering ,Nozzle ,Secondary circulation ,Aerospace Engineering(Formerly Aeronautical Engineering) ,Thermodynamics ,Mechanics ,Computational fluid dynamics ,Coefficient of performance ,Condensed Matter Physics ,Secondary flow ,Vortex ,Physics::Fluid Dynamics ,Aerospace Engineering (Formerly, Aeronautical Engineering) ,Heat transfer ,business - Abstract
Computational fluid dynamics (CFD) and experimental studies are conducted towards the optimization of the Ranque-Hilsch vortex tubes.Different types of nozzle profiles and number of nozzles are evaluated by CFD analysis. The swirl velocity, axial velocity and radial velocity components as well as the flow patterns including secondary circulation flow have been evaluated. The optimum cold end diameter (d(c)) and the length to diameter (L/D) ratios and optimum parameters for obtaining the maximum hot gas temperature and minimum cold gas temperature are obtained through CFD analysis and validated through experiments. The coefficient of performance (COP) of the vortex tube as a heat engineand as a refrigerator has been calculated.
- Published
- 2005