Description:

A Multi-Disciplinary Navier-Stokes Solver Package for the Simulation of Turbomachinery.

ASMEA

Project Acronym:

TRACE

TTN:  DLR Institute for Propulsion Technology

CONTACT:

Frank Eulitz                                                   Tel:   +49 2203 601 4715
German Aerospace Center (DLR)                 Fax:   +49 2203 64395
Institute for Propulsion Technology
Linder Hoehe                                                 Email: Frank.Eulitz@dlr.de
D-51447 Cologne

Technical description:

The goals for the development of the TRACE package are:

  • High accuracy (within a range of 0.5% for integral parameters).
  • Steady and unsteady Multi-stage capabilities.
  • Simulation of coolant flow ejection and turbine heat transfer
  • Geometrical flexibility by using general multi-block grids.
  • Multidisciplinary coupling: Simultaneous predictions of aerothermic problems (turbine cooling and prediction of the temperature distribution in the turbine structure (platform and blades). Simulation of aeroelastic problems (blade fluttering, etc.).
  • High computer performance by using fast algorithms, adequate data structures, usage of massively parallel computers and vector computers.
  • The TRACE-package will be used for the industrial design of turbo-components.

An unsteady part of TRACE (called TRACE_U) and a steady part (called TRACE_S). TRACE_U were designed to address future applications considering unsteady flow problems in transient and quasi-steady conditions. TRACE_S was designed to address nowadays design problems for the virtual prototyping of multi-stage turbo-components. The development of both codes supplement each other.

In 1994 DASA-MTU in Munich, Germany, decided to use the TRACE-system for their own design processes. A joint development group was established and started the further development of TRACE for industrial belongings. In 1996 MTU started to use the TRACE-system in the daily design work for multi-stage compressors and in 1998 the code was firstly used in low-pressure turbines.

The code is now well established in industry .

 

Main interest:

- transition and turbulence modelling
- simulation of unsteady flow in complex geomentries
- multi-physics

 

End-users & test cases :

MTU of Daimler Chrysler, Siemens KWU

Keywords :   parallel CFD, turbomachinery flow, multidisciplinary simulation

Start/End DATE:    1991/ongoing