Confocal imaging of laminar and turbulent mixing in a microscale multi-inlet vortex nanoprecipitation reactor

Passive scalar mixing in a planar shear layer with laminar and turbulent inlet conditions

The effect of inlet conditions on the mixing of a passive scalar was investigated in a planar shear layer with inlet boundary layers that were laminar, tripped and naturally turbulent–transitional. Planar laser-induced fluorescence measurements of acetone were used to directly evaluate the shear layer structure, and were processed to determine probability density functions ~PDFs! of the mixture...

Turbulent mixing in the microscale: a 2D molecular dynamics simulation

Results of 2D molecular dynamics (MD) method are presented for the mixing phenomenon in the microscale, where the length and time are measured in terms of microns and nanoseconds, respectively. Particle ensembles consisting of 0.7–3 × 106 particles in 1.3–5×105 timesteps were simulated. We focus on the temporal evolution of mixing layer between two superimposed Lennard–Jones particle systems in...

Experimental study of turbulent mixing in a rectangular reactor

The velocity and concentration fields in a liquid-phase confined planar-jet reactor were measured using particle image velocimetry (PIV) and planar laser-induced fluorescence (PLIF). Measurements were taken at downstream distances from the jet splitter plates of 0, 1, 4.5, 7.5, 12, and 15 jet widths for a Reynolds number of 50,000 based on the distance between two sidewalls of the test section....

Laminar and Turbulent Aeroheating Predictions around Multi -Cone Configurations in Hypersonic Equilibrium - Air Flow

Effects of Furnace and Inlet Gas Mixture Temperature on Growing Carbon Nanotube in a CVD Reactor

Carbon nanotubes (CNTs), nowadays, are one of the important nanomaterials that can be produce with different methods such as chemical vapor deposition (CVD). Growing of CNTs via CVD method can be influenced by several operating parameters that can affect their quality and quantity. In this article, the effects of inlet gas mixture temperature on CNT’s local growth rate, total production, and le...