A Pulsating Round Jet in Cross Flow

Direct Numerical Simulation of a Sonic Round Jet in a Turbulent Supersonic Cross Flow

A direct numerical simulation of a round under-expanded sonic jet in turbulent supersonic cross flow has been carried out. The objective is to investigate the mixing mechanism which occurs downstream the jet by use of a passive scalar variable. The Navier-Stokes equations in the cylindrical geometry are solved by use of multiblock overlapping meshes. The method has been validated with a laminar...

4 Fuel Jet in Cross Flow –

Transitional region of a round synthetic jet

Spreading and decay rates of several synthetic jets are experimentally measured up to 70–100 diameters (d) away from the orifice. It is found that, consistent with previous studies, after 10d–15d from the nozzle a synthetic jet displays a self-similar velocity profile together with enhanced spreading and decay behaviors than a continuous jet. However, this enhancement does not persist throughou...

An Hmv Mapping Study of a Pulsating Jet System

A new system for the generation of hydrodynamic modulated voltammetry (HMV) is presented. This system consists of an oscillating jet produced through the mechanical vibration of a large diaphragm. The structure of the cell is such that a relatively small vibration is transferred to a large fluid flow at the jet outlet. Positioning of an electrode (Pt, 0.5 mm or 25 μm diameter) over the exit of ...

investigation of supersonic jet into compressible subsonic cross flow on the surfaces around the jet exit

an experimental study has been performed to investigate the flow physics of an under-expanded axisymmetric supersonic jet exhausting transversely from a flat plate into a subsonic compressible cross flow. the goal was to study the effects of boundary layer thickness ratio (δ/d) and the jet to free stream dynamic pressure ratio (j) on surface pressure. the resulting measurements distinctly show ...