Transverse Mixing in the Turbulent Film Flow

Single Jet Mixing at Arbitrary Angle in Turbulent Tube Flow

An asymptotic procedure is presented to evaluate the tracer trajectory in a two-stream turbulent pipe mixing unit with an oblique branch. The proposed mixing jet trajectory estimate is compared with the existing experimental data and used to calculate the critical mixing conngurations. In addition, it is shown that the well-known tracer jet proole can be recovered for the case of a normally iss...

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

Turbulent Flow over Cars

In this paper the flow behaviour over a number of car bodies is studied. For this purpose the unsteady 2-D incompressible Navier-Stokes equations have been applied. After averaging and nondimensionalizing the equations, the system of equations has been transformed from the Cartesian (x-y) coordinates to a body fitted generalized (-) coordinate. As the flow is incompressible, the density in the ...

GRADUATE AERONAUTICAL LABORATORIES CALIFORNIA INSTITUTE OF TECHNOLOGY Turbulent mixing in transverse jets

Recent Advances in Turbulent Mixing

Experimental, modeling, and direct-numerical-simulation (DNS) studies have advanced our understanding of turbulence and mixing. The mixing transition, that occurs across a broad spectrum of flows, at outer-scale Reynolds numbers in the vicinity of Re δ ≈ 1 − 2 × 10 4 , or Taylor Reynolds numbers of Re T ≈ 100 − 140, will be discussed. Inflow-/initial-condition effects in high-Re shear layers wi...