Multi-port microchannel tubes are increasingly popular for use in a variety of heat transfer applications, primarily for automotive condensers and radiators, but also in a variety of refrigeration and air conditioning applications. These channels offer a greater surface area to volume ratio, providing for enhanced heat transfer over a conventional tube in many applications. Previous research ha...

Computational fluid dynamic (CFD) code calculates flow properties for the analysis of a flow system. Flow properties are computed based on conservation principles and various phenomenological models. The accuracy of the computed flow properties highly depends on the validity of the models and the degree of numerical convergence. Validation of a CFD code is essential for application of an engine...

Slugging flow in offshore oil & gas multi-phase transportation pipelines cause big challenges as the flow regime induces flow and pressure oscillations in the multi-phase pipelines. The negative impacts of the most severe slugs are significant and thus the elimination of slugging flow in the pipelines is a highly investigated topic. To eliminate the slug in an online manner real-time slug detec...

Use of X-ray CT (Computer Tomography) system has been extended from medical fields to a variety of industrial applications [1, 2]. Among them is the visualization of multi-dimensional void distribution of two-phase flow in tubes. Mitsutake et al. [3] and Morooka et al. [4] used medical X-ray CT scanners modified for void fraction measurement within rod bundles. The results were comparable with ...

The optical flow can be estimated by several different methods, some of them require multiple frames some make use of just two frames. One approach to the latter problem is optical flow from phase. However, in contrast to (horizontal) disparity from phase, this method suffers from the phase being oriented, i.e., classical quadrature filter have a predefined orientation in which the phase estima...

In the most application of nozzle with gas-liquid two-phase flow, the quality of mixture in exhaust of nozzle is the most important parameter as well as the flow velocity. On the other hand, in some industrial application, such as water injection in forced induction (turbocharged or supercharged) internal combustion engine the spray quality is the main goal of designing. In this case and for im...

The heat generated during the cutting processes significantly influences manufacturing accuracy. For many machining tasks, use of cooling lubricant is essential to achieve necessary and lubricating effect in zone. A reduction a coolant supply due resource-efficient or ecological efforts has an impact on temperature field tool clamping system, which affects thermal behavior frame structure can c...