In order to develop a fast CFD code, we investigated well-known unstructured CFD codes, and we have determined the target performance and specification of CFD code. This is then followed by the development of a fast unstructured CFD code “FaSTAR”. The accuracy of drag prediction with FaSTAR is validated by the DPW4 benchmark problem. The computed drag coefficients generally agree with other res...

The simulation of drop size distributions in stirred liquid-liquid systems is studied. The simulation is realized via the coupling of the CFD code FeatFlow with the population balance solver Parsival. It is shown how such a coupling may be constructed and the properties of the coupled solver are critically analyzed.

BACKGROUND Nasal airway obstruction (NAO) is a common health condition impacting mood, energy, recreation, sleep, and overall quality of life. Nasal surgery often addresses NAO but the results are sometimes unsatisfactory. Evaluating surgical treatment efficacy could be improved if objective tests were available that correlated with patient-reported measures of symptoms. The goal of this study ...

The aim of the present study was to establish the usefulness of conventional thyroid ultrasonography (US) and color flow-doppler (CFD) sonography in the assessment of 'cold' thyroid nodules. One hundred and four consecutive patients with thyroid nodules who were to undergo surgery were examined by US and CFD before thyroidectomy. Conventional US evaluated the presence of a halo sign, hypoechoge...

The development of large medium-speed catamarans aims increasing economic viability and reducing the possible negative influence on the environment of fast sea transportation. These vessels are likely to operate at hump speed where wave-making can be the dominating component of the total resistance. Shallow water may considerably amplify the wave-making and hence the overall drag force. Computa...

the aim of this paper is to study the local nusselt number of the symmetrical liquid-liquid jets emitting from a nozzle. equations obtained from theoretical works are arranged in the form of a computerized model. the validity of this model was tested by the data from an experimental paper [1]. after few adjustments the model predicted the experimental data with a reasonable accuracy. making sur...

CFD has become a buzz word in all sectors and many industries, while the positive displacement compressor industries are rather slow in embracing it. The paper examines whether it is because positive displacement compressors were considered as basically thermodynamic devices or due to the inherent challenges for application. The paper discusses the need for CFD and it’s current status in genera...

The demand for flow visualization software stems from the popular (and growing) use of Computational Fluid Dynamics (CFD) and the increasing complexity of simulation data. CFD is popular with manufacturers as it reduces cost and the time of production relative to the expense involved in creating a real physical model. Modifications to a physical model to test new prototypes may be non-trivial a...

We investigate the potentials and limitations of computational fluid dynamics (CFD) analysis of patient specific models from 3D angiographies. There are many technical problems in acquisition of proper vascular models, in pre-processing for making 2D surface and 3D volume meshes and also in post-processing steps for display the CFD analysis. We hope that our study could serves as a technical re...