Committed to maintaining leadership of In-Cylinder Engine analysis, CD-adapco continues to enhance capabilities and add functionality to STAR-CD/es-ice that will be critical to its automotive customers in the future.
In addition to refinements of existing combustion models, 4.24 delivers further improvements to the es-ice automated meshing processes and es-ice post-processing capabilities. This version also includes a pre-release of a new fully automatic meshing technology for full cycle calculations of 4-stroke gasoline and diesel engines.
The new meshing technology, which is accessible using es-ice, enables the user to generate accurate meshes automatically for full geometry, complete cycle calculations of 4-stroke gasoline and diesel engines. The mesh structure consists of prism layers at the boundary to capture near-wall gradients, an aligned mesh within the valve gap and a hexahedral mesh within the core of the model. A sequence of meshes is generated at distinct crank-angle positions during the engine cycle as a pre-processing step. These are subsequently morphed over a crank-angle range selected automatically to give optimum mesh quality. A fully automated process is used to minimize mesh generation time and allow the user easy control over mesh size. Results using this new technology indicate similar solutions to existing es-ice trimmed cell meshing, thereby providing users with alternative automatic meshing that is easy, fast and accurate.
The PVM-MF combustion model has been significantly enhanced, with new fuel chemistry libraries available for single and dual engine operation. These include gasoline, diesel, natural gas and ethanol, natural gas-diesel, gasoline-diesel and gasoline-ethanol. The dual-fuel libraries provide a way to accurately simulate dual-fuel engines that require the combined chemistry of both fuels.
The level-set (g-equation) combustion model can now use a variant of the AKTIM spark ignition model (referred to as SparkCIMM) to enable an improved simulation of the spark ignition process. This provides users with a much improved capability for modeling early flame development.
Ongoing development and consolidation of the ECFM-CLEH combustion model has also extended the capability to dual-fuel combustion using equilibrium and auto-ignition tables generated by DARSAbout CD-adapco
CD-adapco is the world's largest, privately owned CFD-focused CAE provider. Our core products are the technology-leading simulation packages, STAR-CCM+ and STAR-CD. The scope of our activities, however, extends well beyond CFD software development to encompass a wide range of CAE engineering services in fluid dynamics, heat transfer and structural engineering. Our ongoing mission is to "inspire innovation and reduce costs through the application of engineering simulation software and services." CD-adapco has maintained 15% organic year-on-year growth over the last five years. CD-adapco employs over 900 talented individuals, working at 40 strategic locations across the globe.Name:
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