Heat Transfer Modelling in Gas Turbine Stage
Abstract
Two 3D CFD solvers for internal flow applications are briefly presented and applied for the investigation of heat transfer problems in gas turbine components. The numerical approaches considered are respectively based on a structured (XFLOS) and on an unstructured (HybFlow) methods. The two solvers are briefly described in terms of discretization scheme and turbulence modelling features for gas-turbine applications. Information are also provided concerning the unsteady approach, the multi-blok extension and the parallel porting of the two codes. These implementations are considered for improving the computational efficiency in the application to complex 3D stage investigations. Particular care is demanded to the turbulent flow modelling which assumes great concern for heat transfer predictions on high loaded transonic turbine blades. According this observation, the two CFD approaches are initially applied to the heat transfer investigation of a 2D transonic turbine inlet NGV. Following this first assessment the thermal investigation of blade rows in considered for a 2D unsteady stage environment while further developments are finally reported for the 3D case.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2003
- Accession Number
- ADA419187
Entities
People
- E. Belardini
- Fabrizio Martelli
- P. Adami
Organizations
- University of Florence