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Ocean going ships undergo significant loading at sea and are designed to survive severe sea states in an intact condition. However, little consideration is given to the structural integrity of vessels which are damaged. This can be attributed to the limited knowledge of ship responses in their damaged state. An assessment on the viability of the commercial CFD package STAR-CCM+ as a tool for assessing damaged ships has been undertaken by Lougheed (2012) and Goatly (2013). A model was set up emulating experimental damaged hull sections oscillating in a tank with RANS and LES turbulence models...
ABB Marine is using STAR-CCM+ for the Azipod-units CFD simulation. In this study, open water performance of the pod unit and simulated hydrodynamic loads at varied steering angles at full scale are presented. Open water performance of the pulling-type propeller and pod unit are determined by three approaches: RANS CFD simulations by quasi-steady moving reference frame and unsteady sliding mesh approaches and by model scale experiments for validation. The sliding mesh technique is applied for capturing hydrodynamic loads on the pod and propeller surfaces at varied steering angles. These loads...
In some situations, simulations need to cover a large spatial or time domain. Often, only part of the solution domain exhibits three-dimensional flow features which require the solution of the Navier-Stokes equations. For such applications it is desirable to couple the 3D flow simulation by STAR-CCM+ in a smaller spatial and temporal subdomain with either theoretical or simpler numerical solution in the remaining part of the solution domain (e.g. 2D or 3D potential flow solution, wave theory or another faster solution method). This presentation discusses various coupling options and...
Recent progress in simulation methods for the manufacturing industry has reduced the need for expensive test hardware which could be used free of charge in manufacturing. Using manufacturing simulation tools starting at the design stage helps to optimize product development and corresponding manufacturing systems. Whenever there is the need for an early design input in order to ensure quality and manufacturing costs virtual manufacturing methods will have a profitable chance. For the case study "E-Coat Simulation" STAR-CCM provides an improved workflow from CAD-data and meshing to E-coat...
Large painting systems like dip or robotic painting systems are generally characterized by their long process time and complex motions. Transient simulation of such systems using CFD resulted in unfeasible computation times and utilized significant computing resources. With the advent of overlapping meshes and motion superposition models, STAR-CCM+ attempted to address the challenges of simulating complex motions. In order to reduce the long computation time associated with such large models and to enhance the effectiveness of overlapping meshes, a new concept was introduced based on the...
The increasing demand from consumers for newer, cheaper and more efficient products is increasingly influencing the way products are designed and produced. Virtual manufacturing processes are recognized to be part of the solution to deliver better products. This goes also for casted goods. To accommodate the ever changing demands for a casting the simulation methods have to evolve as well. This means expanding the simulation scope both in terms of the complexity of the replicated boundary conditions and processes as well as the detail in which physical modelling is done. An overall...
Heat exchangers for the climatization and the thermal management of passenger cars and trucks undergo corrosion tests within their development process. Corrosion tests, like the well known Sea Water Acetic Acid Test (SWAAT-Test), are performed by spraying salt water on the heat exchangers within a corrosion test chamber. This test process inside a corrosion test chamber is simulated at MAHLE Behr using STAR-CCM+. The geometry of the corrosion chamber has been built up virtually in STAR-CCM+ including a variable load scenario (of heat exchangers) of the test chamber. The transport of the spray...
The flow of molten steel and the behavior of non-metallic inclusions inside the 6-Strand Tundish at Georgsmarienhütte GmbH were investigated. Considering that water models are generally accepted in supporting validation of CFD simulations, a scaled model of the Tundish was built. The water flow and the non-metallic inclusions behavior are compared with CFD simulation results. A VOF simulation with extreme density ratio (liquid water, air) was performed. The Eulerian Multiphase model and the Volume of Fluid model were implemented to calculate the behavior of water and air. The Lagrangian...
The numerical simulations realised by biomechanical engineers have been evaluated with a certain precaution by clinicians and surgeons. On the other hand, time-consuming nature of our simulations is another reason why they keep us far from thier operation rooms. The objective of the current work is to present the results of several numerical simulations of pulsatile blood flow in healthy and diseased arteries and compare with clinical expectations. Different realistic and physiological aspects such as blood flow interaction with arterial walls, effect of heart movement, cardiovascular...
In recent years, cement-retained dental implant restoration (as opposed to screw-retained restoration) has seen a significant increase in popularity by virtue of its improved aesthetics, cost-effectiveness and reduced chair time. Although it is now common place for dentists to apply this method, excess extrusion of cement into the soft tissue surrounding the implant has been shown to cause long-term peri-implant disease when using this approach. Unfortunately, limited data are available to help understand how to achieve optimal cementation to avoid these health issues by controlling the...

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