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CFD Topology and Shape Optimization of Ford Applications using Tosca Fluid

Modern engine architectures need compact designs driven by vehicle package constraints. Furthermore, an engine should fit into several vehicle applications and parts have to be modified to match all package configurations. The optimization of the individual parts and the system by Computational Fluid Dynamics (CFD) may help to minimize or even delete these drawbacks. Meanwhile, there are several powerful optimization methods for three-dimensional flows on the market. While comparing their strengths and weaknesses, efficiency and easy handling are also important for engineers in research and product development. In this paper, a combined optimization strategy using CFD topology optimization followed by a shape optimization is presented using the software tools Tosca Fluid and STAR-CCM+.

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CFD Topology and Shape Optimization of Ford Applications using Tosca Fluid
Multi-Stage, Multi-Wellbore Hydraulic Fracturing Simulation in Naturally Fractured Reservoirs Using Cohesive Zone Model

Microseismic surveys have demonstrated the abundance of natural fractures where shear slippage occurs due to hydraulic fracturing. These natural fractures and their intersection with hydraulic fractures significantly complicate the optimization of hydraulic fracturing strategies especially in shale resources with multiple simultaneous or sequential stimulation stages. The clusters’ hydraulic connection within a stage may substantially influence the hydraulic fracture propagation pattern considering the highly variable perforation efficiencies of clusters. These complexities promote the proposed developments in our poro-elastic cohesive zone models for hydraulic fracturing in Abaqus.

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Multi-Stage, Multi-Wellbore Hydraulic Fracturing Simulation in Naturally Fractured Reservoirs Using Cohesive Zone Model
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As the world’s top OEMs can attest, simulation products are not created equal. Accurate, reliable, real-world results require a validated, proven simulation software package with years of research and development invested. These premier simulations demand significant computational hardware resources that are difficult and expensive to maintain. Simulation has become an absolute necessity to remain competitive in product design and engineering. To best optimize designs and contain development costs, engineers worldwide seek access to premium simulation software which, until now, may have been too costly to deploy internally.

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While Additive Manufacturing (AM) has opened up possibilities for product design that were not even contemplated before, the industry still struggles with unknowns: part distortions, residual stress, and microstructure defects. The 3DEXPERIENCE platform provides a digital thread from design to simulation to production. Within this framework, engineers can perform detailed thermal-mechanical analyses to predict complex physics, such as microstructure, as-built material properties, and buckling. A faster eigenstrain-based simulation method is also available to obtain distortions for part compensation iterations. These simulation tools were awarded first place in residual stress prediction by the recent NIST AM Benchmark, and have been validated for a range of process types and materials.

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DIGITALLY ACCELERATING ADDITIVE MANUFACTURING

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