Accurate prediction for a self-propelled ship is a challenging task for CFD computation. While turbulence modeling is a crucial issue, more physical modeling is involved in a propeller simulation: transition, cavitation, turbulence, ventilation, etc. More advanced numerical technique is also required to capture very small scale flow motion such as tip vortex. The ISIS-CFD RANSE code has been fu...

Computational Fluid Dynamics (CFD) is a promising tool for the development of comprehensive models of gas-phase polymerization in fluidized bed reactors. However, CFD models of gas-solids flow in fluidized beds are still under development and validation of these models on relatively simple test cases is essential if we hope to achieve reliable predictions of the complex phenomena associated wit...

This paper presents a new numerical model, called the CAS model, for boiling heat transfer. The CAS model is based on the cellular automata (CA) technique that is integrated into the popular SIMPLER algorithm for CFD problems. In the model, the CA technique deals with the microscopic nonlinear dynamic interactions of bubbles while the traditional CFD algorithm is used to determine macroscopic s...

Chemical Fluid Deposition (CFD) involves the chemical reduction of organometallic compounds in SCFs to yield high purity deposits.[4] Typically, the reaction is initiated upon the addition of H2 or other reducing agent. The advantages of CFD over conventional deposition techniques are a consequence of the unique properties of SCFs, which lie intermediate to those of liquids and gases. Supercrit...

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...

The current computational fluid dynamics modeling technique is capable of identifying the optimal reagent injector locations for SNCR systems. However, this technique cannot quantify NOx reduction and ammonia slip. ABB carried out a research project to investigate various computational fluid dynamics (CFD) models and the chemical kinetics of nitrogen species during coal combustion. An enhanced ...

Automatic diierentiation (AD) is a technique for augmenting computer codes to compute derivatives of a subset of their outputs with respect to a subset of their inputs. AD has been shown to provide accurate, but ineecient, sensitivity-enhanced CFD codes for use in aerodynamic shape optimization. To address the ineeciency problem, several special purpose techniques have been suggested. One such ...

Swimming assessment is one of the most complex but outstanding and fascinating topics in biomechanics. Computational fluid dynamics (CFD) methodology is one of the different methods that have been applied in swimming research to observe and understand water movements around the human body and its application to improve swimming performance. CFD has been applied attempting to understand deeply t...

The computational prediction of hemolysis based on Computational Fluid Dynamics (CFD) is considered in the present work. Hemodynamics is computed by relying on ANSYS software and coupled with a postprocessing based on Matlab. The purpose of the project is to develop a reliable CFD-based technique to predict hemolysis in medical equipments, especially blood pumps, that will be ultimately include...