This paper shows distinctive features and some results obtained with a new numerical methodology for Computational Fluid Dynamics (CFD), which is the result of the right combination of Bond Graph concepts with elements of Numerical Methods. This methodology was used so far to model single-phase, single-component and single-phase, multicomponent flows. The main characteristics of this new method...

A reliable and comprehensive assessment of nasal breathing is problematic and still a common issue in rhinosurgery. Impairments of nasal breathing need an objective approach. In this regard, currently rhinomanometry is the only standard diagnostic tool available but has various limitations. However, in the last decade, computational fluid dynamics (CFD) has become a promising method in facing t...

The development of advanced and successful numerical modelling packages for Computational Fluid Dynamics ( CFD ) within recent years has led to their widespread use in engineering and industrial environments. Increasingly this has led to a situation where package users have little or no specialist knowledge of the underlying physical principles upon which CFD packages are based. Generally users...

Ethnomethodology is an established method of research in technology related fields. In work settings, ethnomethodology has helped researchers to deepen their understanding of how collaborative activities unfold in a social context. While much collaboration is now carried out online, through distributed teams for example, ethnomethodology, as a method of analysis, has not received considerable i...

Discrete element modeling is being used increasingly to simulate flow in fluidized beds. These models require complex measurement techniques to provide validation for the approximations inherent in the model. This paper introduces the idea of modeling the experiment to ensure that the validation is accurate. Specifically, a 3D, cylindrical gas-fluidized bed was simulated using a discrete elemen...

WITH CEREBRAL FOLATE DEFICIENCY Cerebral folate deficiency (CFD) has been defined as any neuropsychiatric condition associated with isolated lowering of 5-methyltetrahydrofolate (5MTHF) levels in CSF and normal systemic folate metabolism.1 CFD has been detected in the infantile-onset CFD syndrome (mediated by serum folate receptor [FR] autoantibodies of the blocking type1) and Aicardi-Goutières...

In the chemical process industry bubble columns are widely used and there is a lot of interest in the modelling of the gas-liquid flow in such equipment with the aid of Computational Fluid Dynamics (CFD). In order to validate CFD simulations of gas-liquid flows in bubble columns one needs detailed measurement data at moderate gas fractions (i.e. up to 5 vol.%). For the validation of CFD results...

In the framework of the ASCHLIM project, a group of European experts in thermal hydraulic calculation has been clustered to evaluate the state of the art of CFD (Computational Fluid Dynamics) codes applied to ADS designs. The work of this group, supported by the Vth Framework Program of the European Union, has been focused on CFD analysis of the experiments that includes thermal hydraulic pheno...

For die-casting, various approaches to finding the optimal control settings and optimal mold by using a computational fluid dynamics (CFD) simulator have recently been studied and applied. However, the optimal value obtained by using a conventional CFD simulator does not consistently agree with experiment, owing to computational error. Accordingly, we analyze the problem of optimization with a ...

A significant improvement to the development of CFD-based unsteady aerodynamic reduced-order models (ROMs) is presented. This improvement involves the simultaneous excitation of the structural modes of the CFD-based unsteady aerodynamic system that enables the computation of the unsteady aerodynamic state-space model using a single CFD execution, independent of the number of structural modes. F...