0894-1777/$ see front matter 2012 Elsevier Inc. A doi:10.1016/j.expthermflusci.2012.01.031 ⇑ Corresponding author. Tel.: +1 513 529 0718; fax E-mail address: [email protected] (A.D. Som 1 Tel.: +1 513 529 1933; fax: +1 513 529 5629. Air-flow induced water droplet movement on micro-patterned aluminum surfaces consisting of parallel grooves tens of microns in width and depth is considered, and ...

The indoor air quality is much more matter of concern as relative to ambient or outdoor air quality, especially in the context of human health.  However, very few studies have been reported for remediation of indoor ozone by plant species. The main objective of this study is to evaluate ozone deposition velocities and ozone removal effectiveness of three indoor ornamental plant species (Dra...

A method is presented by which combined S-band polarimetric weather radar and UHF wind profiler observations of precipitation can be used to extract the properties of liquid phase hydrometeors and the vertical velocity of the air through which they are falling. Doppler spectra, which contain the air motion and/or fall speed of hydrometeors, are estimated using the vertically pointing wind profi...

In this paper, the acoustic excitation effects on the flow characteristics of a laminar jet inside an air-filled cylindrical tube have been presented and discussed. It is observed that the acoustic excitation has a strong effect on the jet velocity and its flow structure. Under excitation, the velocity is observed to increase more than seven times. Comparisons and investigations of the velocity...

Sieve trays are widely used in the gas- liquid contactors such as distillation and absorption towers. In this article, a three-dimensional, two phase CFD model using Euler-Euler framework was developed to simulate a distillation tower with two sieve trays. Hydrodynamic simulation of air and water system in different rates of gas phase was carried out and velocity distribution parameters, clear ...

In this study, response surface methodology was used for optimization of intermittent microwave-convective air drying (IMWC) parameters with employing desirability function. Optimization factors were air temperature (40-80°C), air velocity (1-2 m/sec), pulse ratio) PR ((2-6), and microwave power (200-600 W) while responses were rehydration ratio, bulk density, total phenol content (TPC), color ...

The first three moments of the millimeter-wavelength radar Doppler spectrum provide valuable information regarding both cloud properties and air motion. An algorithm using these Doppler radar moments is developed to retrieve cirrus microphysical properties and the mean air vertical motion and their errors. The observed Doppler spectrum results from the convolution of a quiet-air radar reflectiv...

simulation using a commercially available computational fluid dynamics package (FLUENT) were adopted to investigate complex behavior involving hydrodynamics and ferrous biological oxidation in a gas–liquid bubble column reactor. By combining the hydrodynamics and chemical species transport equations, the velocity field, air volume fraction and ferrous biooxidation rate in the column were simula...

The use of air-filled soap bubbles for volumetric velocimetry in air flows is demonstrated experimentally. tracers are produced by a novel system that seeds high number density bubble streams particle image applications. Particle considerations, spatial resolution and response time scales discussed light current seeding techniques measurements. micro-soap employed to measure the 3D velocity fie...