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Mixing of a passive scalar in isotropic and sheared homogeneous turbulence
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ferziger, J. H. Shirani, E. Reynolds, W. C. |
| Copyright Year | 1981 |
| Description | In order to calculate the velocity and scalar fields, the three dimensional, time-dependent equations of motion and the diffusion equation were solved numerically. The following cases were treated: isotropic, homogeneous turbulence with decay of a passive scalar; and homogeneous turbulent shear flow with a passive scalar whose mean varies linearly in the spanwise direction. The solutions were obtained at relatively low Reynolds numbers so that all of the turbulent scales could be resolved without modeling. Turbulent statistics such as integral length scales, Taylor microscales, Kolmogorov length scale, one- and two-point correlations of velocity-velocity and velocity-scalar, turbulent Prandtl/Schmidt number, r.m.s. values of velocities, the scalar quantity and pressure, skewness, decay rates, and decay exponents were calculated. The results are compared with the available expermental results, and good agreement is obtained. |
| File Size | 4879785 |
| Page Count | 179 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820003521 |
| Archival Resource Key | ark:/13960/t26b1zk5n |
| Language | English |
| Publisher Date | 1981-05-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbulent Flow Shear Flow Reynolds Number Equations of Motion Field Theory Physics Turbulent Mixing Reynolds Stress Tensors Prandtl Number Scalars Isotropic Turbulence Kolmogorov Theory Homogeneous Turbulence Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
