Research

Flow simulation (CFD) 

In short, flow simulation tries to find solutions with simulative work instead of constructing a complex prototype. We use the Navier-Stokes-Equations for mathematic-physical descriptions because it applies to all forms of flow. Questions about aerodynamics of Wind-Turbines are our focus area.

An overview of recent work on fluid mechanics especially in the fields of Turbomachines and Biomedical-Engineering are described here.

Recent Projects

  • Thick aerodynamic profiles
  • Explanation of aerodynamic lifting
  • Transition on WT rotors
  • Baltic Thunder (since 2007)
  • Aerodynamic glove (since 2004)
  • eek sh (precursor CEwind since 2003)
  • participation in IEAwind Tasks: XI, XX, 29 und 43 (since 1997)

a) design of wind turbine rotors beyond 5 MW

b) measurement of the rotating boundary layer of the rotating blade of MM92 of the UAS Flensburg with an aerodynamic glove in Eggebek

c) older projects

  • BMFT joint project ‘turbulences and their meaning for wind energy’
  • Aerodynamics and aeroelastic of unconventional wind turbines
  • Darrieus rotors
  • Examination of the aerodynamic frequent turbulence at the offshore research platform FINO3
  • DEWI Round Robin Experiment: Flow simulation
  • Optimisation of 1,5 MW rotors (together with the Deutsche WindGuard GmbH)
  • Development and test of a new senor (ALCA)
  • Optimal criteria for the aerodynamic design of WT rotors

Hardware

(since 1979 - mostly wihth LINPACK)

NameMflopsyearremark
Sperry UNIVAC 1100/80 ?~ 0,41979 - 1986 
PTP 11~ 0,06 1979 
VAX 11-730< 1< 1980 
DEC alpha~ 10 (100 ?)1988 
Atlas MPR< 0,1 ?1987/19880,5 MIPS
Intel 3860,5ca. 19855 - 8 MIPS
Intel 486 66 MHz1,0ca. 1990 
Pentium 1333,6  
P Pro 2006,6  
P2 / 50034,0  
SGI O2 R5k8,01995 
SGI Indigo² R8k6,51996 
SGI O200 R10k2 x 141998 
AMD 120070,02001 
    
Intel 4-Core Quad 2.7 GHz700,02012 
HTC One smartphone150,02014 
Intel i3 41604952018 
HLRN - Emmy6 M2021TOP 500: rank 47
iphone 12.8 D79ap / 6 cores19 k2020