Wroclaw University of Technology

Department of Numerical Modelling of Flows

Head: Prof. Henryk KUDELAhenryk.kudela@pwr.wroc.pl

Dr Pawel Reguckipawel.regucki@pwr.wroc.pl

First European Workshop on Turbulence in Cryogenic Helium, CERN, Geneva, 23-25.04.2007

Research area

- numerical modelling of 2D and 3D vortex structures by „vortex in cell” (ViC) method

- discretization of vorticity field

Formulation of the problem in termsof vorticity and vector potential fields

Research area

-investigation of interaction of vortex ring with rigid wall

-analysis of vortex structures interactions in 2D and 3D inviscid and viscous flows

Possible areas of further investigations

- evolution of turbulent spots in boundary layer,

- investigation of interaction of vortex rings with a wall and study of creation and evolution of secondary vortex structures,

- investigation of evolution of a set of vortex structures in 3D flow,

-Implementation to the algorithm a model of turbulence

Experience of Wroclaw University of Technology in construction of He II cryostats

T

?TT

He II

T=1.7-2.2 K

He I

1 bar, T=4.2K

Cooling

V acuumpum p

E xpansionvalve

Constriction

Recuperativeheat exchanger

Possibility of cooperation with cryogenic group of prof. Maciej Chorowskiwhich has experience in construction of He II cryostats

The NED cryostat, construction phase at WUT

Copper thermal shields

Recuperative heat exchanger

Wroclaw University of TechnologyFaculty of Mechanical and Power

EngineeringWybrzeze Wyspianskiego 27

50-370 Wroclaw, Poland