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In this workshop how to calibrate the pressure trace or heat release rate calculated by ECFM-CLEH, which is CD-adapco's best practices diesel combustion model from STAR-CD v4.20 will be illustrated.
Granular materials are of critical importance in many industrial processes. We make use of STAR-CCM+ DEM model for granular material’s behavioral analysis as well as for solving engineering problems. In this report the results of a channel blockage simulation of granular flow in a pipe is discussed. We found good consistency between the simulations and the data in our hands.
During the last two decades, combustion models and application for internal combustion engine was mainly developed using a single component fuel. When the situation allows it, this component could be a pure substance like a pure iso-octane or a representative single component for blended fuels. In theory, the single component should represent all the physical and chemical properties of the blended fuel. Although this approach appears relatively rough it has successfully applied to engine application. Recent regulation to reduce fuel consumption and emission, the use of bio-fuel (presence of...
Presentation includes the overview of DEM capabilities in STAR-CCM+ and examples with analysis of DEM and DEM coupled to CFD simulations for Chemical Processing Industry.
A flash boiling phenomenon differs from the normal evaporation (isobaric heating) and where a rapid evaporation occurs due to rapid pressure drop under saturation pressure condition. This report explains the physical process of flash boiling phenomenon for single component fuel and further describes the evaporation enhancement effect when multicomponent fuel is applied. The fuel for normal engines is multicomponent fuel and when mixing fuel components, which have largely different boiling temperatures, two phases region is formed on the pressure-temperature diagram. This allows evaporation...
The evolution of nuclear reactor design is being greatly influenced by the availability of new, versatile next-generation tools. Multi-physics analysis of nuclear reactor systems is pushing the operational limits of reactors and fuel, with large impact on the economics of the plants, while simultaneously improving the safety standards. Computational Fluid Dynamics, used in combination with neutronics, structural, material performance and system analysis tools, has enabled nuclear operators and vendors to greatly enhance the capacity and availability of current reactors. The increased adoption...
We have been expanding our application coverage for reacting flows that requires coupling of chemistry and flow physics that span a wide-range of length and time scales. We capture these interactions by using a combination of online as well as offline computation using our chemistry tool called DARS to incorporate finite-rate chemistry effects while keeping the computational cost manageable. These models have been extended to work in multi-phase as well as with high-speed flows. Examples from chemical process and combustion applications will be shown that will include surface reactions, multi...
The method of ignitability estimation simulation of the spark plug in engine cylinder that considered engine conditions and misfire was developed. This method is consisted by creating engine model from 3D scan, flow simulation model in engine cylinder with verification by PIV, spark displacement model and detailed chemical kinetics of gasoline surrogate fuel. The ignitability of four types of spark plug with different shapes of ground electrode was calculated. In this result, correlation was seen with the experiment. In another calculation, in-cylinder flow was found out to have the largest...
Sound source prediction/reduction has become a critical topic of investigation in the automotive and household appliance industries. Acoustic comparison can be achieved using the steady state result to minimize computational cost especially when a particular model has to be chosen amongst several test geometries. This presentation illustrates several examples of aeroacoustic calculation performed by STAR-CCM+.
An overview is presented of key methodologies in STAR-CCM+ and STAR-CD for simulating disperse multiphase flows involving droplets, solid particles and/or liquid films, including: atomisation; particle dynamics and heat/mass transfer; wall impact and erosion; and liquid film dynamics, heat/mass transfer and melting/solidification. Examples are shown of validation studies and applications in the aerospace, automotive, oil/gas and manufacturing and medical fields.

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