Loading...
Please wait, while we are loading the content...
Similar Documents
Research on two equation models
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Yang, Z. |
| Copyright Year | 1993 |
| Description | The k-epsilon model is the most widely used turbulence model in engineering calculations. However, the model has several deficiencies that need to be fixed. This document presents improvements to the capabilities of the k-epsilon model in the following areas: a Galilean and tensorial invariant k-epsilon model for near wall turbulence; a new set of wall functions for attached flows; a new model equation for the dissipation rate, which has a better theoretical basis, contains the contribution of flow inhomogeneity, and captures the effect of the pressure gradient accurately; and a better model for bypass transition due to freestream turbulence. |
| File Size | 180096 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940014074 |
| Archival Resource Key | ark:/13960/t6d26v605 |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbulence Turbulent Flow Pressure Effects Shear Flow Turbulent Boundary Layer Pressure Gradients Dissipation Vorticity Wall Flow Boundary Layer Transition K-epsilon Turbulence Model Inhomogeneity Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
