Library

2569 match your search

Experimental Validation of STAR-CCM+ for Liquid Container Slosh Dynamics
The NASA Launch Services Program has funded several propellant slosh related projects over the years with the goal of obtaining experimental data to anchor CFD predictions. STAR-CCM+ is used to create a CFD model of water sloshing in an 8” diameter spherical tank. The predictions from this CFD slosh model are compared to experimental data to validate the results. The data compared include slosh natural frequency, damping rate and free surface topology. These important validations allow us to increase our confidence in STAR-CCM+ for use on NASA missions.
An overview of battery simulation
An introduction to batteries is provided, including an overview of the commercial value of batteries sold by chemistry. Opportunities for battery simulation in various markets (automotive, consumer, industrial, etc.) are presented, along with examples of the STAR-CCM+ BSM module and Battery Design Studio.
CFD Study of an Industrial Heater
A CFD study using STAR-CCM+ 7.04 is performed to simulate an industrial heater with burners firing refinery gas fuel. The heater has been reported with short run length due to coking inside the process tubes. Heater, burners and combustion air duct are included in the modeled geometry. Turbulence, combustion and radiation models are activated to simulate the environment inside the heater. System analysis is performed such as combustion flame pattern, temperature and velocity fields, heat flux and temperature distribution at various locations etc. Non-uniform heat flux distribution on process...
Optimate Evaluation: Design Optimization of a Generic Glider
One of the difficulties of optimization of any design using CFD is the sheer number of runs required using traditional methods. This presentation details the use of Optimate for the optimization of a generic glider. This case was designed to stress the SHERPA algorithm with a realistically complex set of design criteria to optimize an aerodynamic vehicle, including stability requirements and trimmed L/D performance requirements.
V3 in Fire & Smoke Analysis
As capabilities and features in STAR-CCM+ continuously become more numerous and sophisticated, there is an increasing demand in Verification, Validation and Visualisation. Especially in general engineering and building services, where customers do not have a distinct CFD background, the simulations have to bear more critical assessments because of targeting a more sceptical audience. Thus, it is extremely essential to validate simulation against experiment, empirical approach and literature most intelligible to a wide range of customers and show the results in a vivid and realistic way. Still...
Using STAR-CCM+ for Catalyst Utilization Analysis
Due to increasingly stringent emissions requirements, 3D CFD has been used extensively at Ford for the development of exhaust and after treatment systems, for example to assess the catalyst utilization. In order to maintain the quality of the analysis which could be carried out by CAE teams inside and outside the company, we have developed a unique CAE procedure which standardizes the ways to perform the analysis, post-processing and presentation. This presentation describes how we upgraded this procedure from STAR-CD to STAR-CCM+ standard.
Emergency Ventilation System Modeling
Architects and engineers are continually pushing the limits of design through the use of novel building shapes and mixed mode ventilation systems. Analysis techniques must be sufficiently sophisticated to follow suit, especially with respect to the life safety aspects of the design. The mixed mode emergency ventilation system described in this work and proposed for a semi-enclosed bus terminal is a typical example. The terminal connects to a pedestrian mall and has a unique scalloped façade. STAR-CCM+ was used to aid in the design of the emergency ventilation system consisting of sprinklers...
DARS SRM as Combustion Model for Engine Concept Development
New combustion concepts like PPC and RCCI have demonstrated very high indicated efficiencies together with a potential for low engine out emissions. But the implementation of those combustion concepts in engine concepts remains a challenge. A number of issues like boosting, load range, EGR control and transients have to be addressed. Integration of different technologies into an engine concept is done with gas exchange simulations. But how is the combustion in the gas exchange simulations modeled when new combustion concepts are utilized? Iterating with 1-cylinder testing and 3D combustion...
Application of Direct Quadrature Method of Moments in Multiphase Flows using STAR-CCM+
Commercial fluidization technologies can benefit from a deeper understanding of the interplay between the dynamics of the fluids and solids in these multiphase processes. Dispersed-phase and particulate systems, such as precipitation, crystallization, particle formation in aerosols and fluidization, can be modeled using the Population Balance Equation (PBE) approach to describe different particle properties. In our research, we have implemented this PBE approach into our High Performance Computing (HPC) STAR-CCM+ simulations. In particular, we are using the Direct Quadrature Method of Moments...
Improving Layer Control in Multi-Layered Polyester Films using Computational Fluid Dynamics (CFD)
Polyester based Multi-Layered Films (MLFs) form a major part of DuPont Teijin Films' (DTF) product portfolio. Such MLFs are formed when different polymer melt layers come together in a process known as coextrusion. The main coextrusion geometries used at DTF are: • an injector block linked to a die and • a multi-manifold die. As the thickness and melt flow properties of the layers become more differentiated, it becomes more difficult to control individual layer width and thickness of an MLF. CD-adapco’s STAR-CCM+ is used to improve the layer control of current MLFs, reducing the potential...

Pages