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Effect of liquid droplets on turbulence structure in a round gaseous jet
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mostafa, A. M. Elghobashi, S. E. |
| Copyright Year | 1983 |
| Description | A second-order model which predicts the modulation of turbulence in jets laden with uniform size solid particles or liquid droplets is discussed. The approach followed is to start from the separate momentum and continuity equations of each phase and derive two new conservation equations. The first is for the carrier fluid's kinetic energy of turbulence and the second for the dissipation rate of that energy. Closure of the set of transport equations is achieved by modeling the turbulence correlations up to a third order. The coefficients (or constants) appearing in the modeled equations are then evaluated by comparing the predictions with LDA-measurements obtained recently in a turbulent jet laden with 200 microns solid particles. This set of constants is then used to predict the same jet flow but laden with 50 microns solid particles. The agreement with the measurement in this case is very good. |
| File Size | 837922 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830020944 |
| Archival Resource Key | ark:/13960/t3nw4976r |
| Language | English |
| Publisher Date | 1983-03-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Gas Jets Conservation Equations Transport Properties Momentum Coefficients Drops Liquids Continuity Equation Comparison Predictions Solids Mathematical Models Kinetic Energy Turbulent Jets Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
