Preliminary Computational Analysis of Film Cooling on a Flat Plate at Different Blowing Ratios
Abstract
A computational study of turbine film cooling on a flat plate was conducted. Advanced high-temperature ceramic-matrix-composite materials and manufacturing technologies offer the opportunity to discover new and improved film cooling technologies for gas-turbine engine airfoils that could significantly improve their performance. The computations were aimed at determining if commercially available computational fluid dynamics codes generate results with enough fidelity to choose between proposed concepts in a timely manner and limited user intervention. Since the accuracy of the results of the computations are directly tied to the mesh resolution, creating the mesh can be a time-consuming step and may require generating multiple meshes until finding the right one. The study used two commercial packages that feature automatic mesh generation capabilities, COMSOL Multiphysics and CONVERGE. The automated mesh generation utilizes the physics of the problem being studied to generate the most appropriate mesh. The computational results were compared with experimental data and showed that the meshes generated by both software packages were qualitatively and quantitatively in good agreement with the experimental data and provide substantive information to assess the potential of new proposed film cooling concepts in a timely manner, reducing experimental time and resources.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2020
- Accession Number
- AD1092635
Entities
People
- Douglas R. Thurman
- Philip Poinsatte
- Waldo A. Acosta
Organizations
- United States Army Research Laboratory