Three-Dimensional Internal Flows in Turbomachinery. Volume II.
Abstract
Several aspects of viscous internal flows, related to turbomachinery applications, are examined and studied with the use of appropriate model problems. Laminar as well as turbulent flows are considered. In particular, duct flows are studied in detail so as to better understand the physical phenomena occurring therein. This enables their appropriate formulation and, consequently, permits accurate numerical solutions to be obtained efficiently. Configurations involving complex geometry, transverse curvature, longitudinal curvature and streamwise flow separation are studied in detail. Turbulent flows through regular cross-section ducts are studied via the use of a two-equation model for the turbulence kinetic energy and its dissipation rate. Two approaches for treating the wall regions are examined and compared. Detailed results are obtained for flow through curved ducts of polar cross section. Some effort is also made towards modelling anisotropy and compressibility in turbulent flow using simple model problems. In the entire study, emphasis is given to the accuracy and efficiency of the numerical solutions. This has involved the study and implementation of implicit and semi-implicit numerical schemes of higher-order accuracy and higher efficiency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1980
- Accession Number
- ADA093130
Entities
People
- Kirti N. Ghia
- Urmila Ghia
Organizations
- University of Cincinnati