NUMERICAL SIMULATION OF UNSTEADY THREE-DIMENSIONAL FLOW FIELDS IN A TURBINE FLOW METER
Abstract
The complex three-dimensional unsteady flow field in a one-stage turbine gas flow meter was studied by carrying out numerical simulations using the Navier-Stokes solver Fluent. The simulation of all the viscous effects as well as secondary flows, such as the flow in the tip gap and secondary and tertiary vortices in the blade to blade region required a very high grid resolution. Therefore, a series of three-dimensional block-oriented hybrid grids containing between 300 thousand and 1.5 million grid cells was generated and implemented. The aim of the present project was to find the correct operating conditions to subsequently explain the behavior of the mechanical accuracy of the meter, to prove the correctness of the theory of operation a.nd to verify these results by comparison with experimental measurements.
Event details
- Event
- FLOMEKO 2003
- Technical Committee
- TC9
- Place
- Groningen, NETHERLANDS
- Time
- 12 May 2003 - 14 May 2003
- Website
- www.flomeko2003.nl