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The capabilities of Battery Design Studio are presented in the context of battery design challenges facing battery developer and users. Examples ranging from cell design to model selection and parameterization are used for demonstrating how to design cells for automotive applications. Finally, new features in planning are discussed.
First, the computational activities for the thermal management of electronic devices in the development process of a passenger car are presented. The numerical challenges related to the temperature computation of a refrigerant cooled battery and related to its temperature control are reviewed. In this respect, a conjugate heat transfer model has been created in STAR-CCM+. The comparison with experimental results shows a good agreement for the temperature of the cell can. The battery temperature is computed in transient conditions under vehicle electrical and thermal loads. Finally, the effect...
The increasing use of electric drive systems in many transportation devices, whether automobiles, trains or planes, has added a new demand on simulation methods. This trend, coupled with the ever increasing demands on power density and reduced package size, has forced more complex physics into such simulation technology. This presentation will cover CD-adapco's approach to provide engineers with highly accurate tools to simulate these new phenomena and hint at some newer developments.
This presentation illustrates a new application of the previously developed 1D transient DARS Catalyst model for the simulation of a Selective Catalytic Reduction (SCR) catalyst. Initially demonstrated for NOx-Storage Catalyst (NSC), the DARS Catalyst model uses a single-channel or a set of representative channels for the simulation. This model is fully valid and employed further for the SCR catalyst. Each channel is discretized into a number of cells. Each cell is treated as a Perfectly Stirred Reactor (PSR) with a thin film layer for washcoat treatment. Three global parameters are used to...
Counterflow burners consist of steady, axisymmetric, laminar flows of two counterflowing reactant streams toward a stagnation plane. These burners can be used to experimentally study and develop detailed chemical mechanisms of combustion under a wide range of conditions. Global flame parameters such as the critical limits of extinction and autoignition, as well as flame structure, including flame temperatures and species concentrations can be measured and tested against established reaction mechanisms using 1D numerical model with known conditions at the duct exits. This presentation is a...
We have been expanding our application coverage for reacting flows that require coupling of different processes with a wide-range of length and time scales. We capture these interactions by using a combination of online as well as offline computations that enables us to perform advanced reacting flow calculations incorporating finite-rate chemistry while keeping the computational time manageable. Our models have been extended to work in multi-phase as well as with segregated and coupled flow solvers. Examples from chemical process and combustion applications will be shown that will include...
A 3D CFD model is developed for analysis of transient soot filtration processes in a conventional wall-flow type Diesel Particulate Filter (DPF). The primary objective of this study is to quantitatively predict the local values of soot filtration parameters, such as porosity, permeability, collection efficiency and deposited soot mass, within isotropically discretized computational domains in the multi-layered filter wall region. Standard CFD codes do not have ability to generate structured meshes with ordered cell index nor allow mathematical recursive operation using user field functions...
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...
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...

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