Process for conjugate CFD analysis of a turbine airfoil
US8061988B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Sep 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2119/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a process for designing the internal cooling passages with these small scale features using a meshed solid model in a FEA program to perform the CFD analysis. Instead of modeling these small scale features (cooling holes, impingement holes, and turbulators) in the meshed FEA solid model, most of the small scale features are replaced by grid extraneous source terms in which the small scale feature is eliminated from the solid model and replaced with point source terms. The source terms can duplicate the effect of the feature within the analysis without requiring the complex analysis that such features would require in the analysis. Text files for each of the cooling holes, impingement holes and turbulators are inputted and then translated into grid extraneous source terms that include position, energy, and continuity. A conjugate CFD solver performs an analysis and produces new values for the thermal and boundary conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.