Computational fluid dynamics (CFD) is a simulation tool, which uses powerful computer and applied mathematics to model fluid flow situations for the prediction of heat, mass and momentum transfer and optimal design in industrial processes. It is only in recent years that CFD has been applied in the food processing industry. This paper reviews the application of CFD in food processing industries...

This paper describes the technology for coupling CFD and FEM computations and for selecting the appropriate design waves. One core component for linking CFD and FEM is a repository for the ship hydrodynamic results (SHR). Another important component is an algorithm which maps CFD pressures to FEM nodal loads where CFD and FEM meshes need not coincide. Both the exchange file and the mapping algo...

CFD requires validation for complicated flow problems involving complex physics such as turbulence. Wind tunnels are still the most commonly used validation tools for CFD including physical modelling although some limited use of reliable DNS data base for simple geometries is recently becoming possible. One can observe the trend that a higher and higher demand on the accuracy of the wind tunnel...

Increasing demand on the performance of Subsea Production Systems (SPS) suggests a need for more detailed investigation of fluid behavior taking place in subsea equipment. Complete CFD cool down analyses of subsea equipment are very time demanding. The objective of this paper is to investigate a Locked CFD approach, which enables significant reduction of the computational time and at the same t...

The present study in spin stabilised disc aerodynamics builds on previous experimental wind tunnel work to broaden the knowledge base through CFD simulation without the necessity for high facility or time cost. The current experimental database from previous studies is extensive enough for sufficient validation to be conducted on known geometries. From there, the limitations of CFD studies for ...

Surgem is an interactive anatomy-editing tool for surgery planning developed to enable the surgeon to directly edit the detailed models of patient-specific anatomies according to the contemplated surgical options and to compare such options by using the results of computational fluid dynamics (CFD) analysis. Surgem combines powerful free-form shape deformation tools with new human-shape interac...

Considerable progress in development and application of CFD for aeroengine internal flow systems has been made in recent years. CFD is regularly used in industry for assessment of air systems, and the performance of CFD for basic axisymmetric rotor/rotor and stator/rotor disc cavities with radial throughflow is largely understood and documented. Incorporation of three dimensional (3D) geometric...

Adjoint based methods are an effective way to obtain accurate gradients for CFD optimization problems since the computation cost for the calculation of these gradients is relatively independent of the degrees of freedom. At the heart of such an optimization process lies the computation of topology sensitivity maps. Sensitivities are derivatives of an objective function resulting from CFD comput...

The solution of non-linear sets of algebraic equations is usually obtained by the Newton's method, exhibiting quadratic convergence. For practical simulations, a signiicant computational eeort consists in the evaluation of the Jacobian matrices. In this paper, we propose and experiment various methods to speed the convergence process either by re-using information from previous iterates or by b...