New PDF release: An innovative 3D-CFD-Approach towards Virtual Development of

By Marco Chiodi

Within the engine improvement method, simulation and predictive courses have consistently won in reliance. a result of complexity of destiny inner combustion engines the purposes of simulations courses in the direction of a competent "virtual engine improvement" is a necessity that represents one of many maximum demanding situations. Marco Chiodi provides an leading edge 3D-CFD-tool, completely devoted and optimized for the simulation of inner combustion engines. due to superior or newly built 3D-CFD-models for the outline of engine methods, this instrument guarantees an effective and trustworthy calculation additionally through the use of path 3D-CFD-meshes. according to this method the CPU-time should be decreased as much as an element a hundred compared to conventional 3D-CFD simulations. moreover an built-in and automated "evaluation device" establishes a entire research of the correct engine parameters. as a result of the power of a competent "virtual improvement" of full-engines, this quick reaction 3D-CFD-tool makes an incredible contribution to the engine improvement method.

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Extra resources for An innovative 3D-CFD-Approach towards Virtual Development of Internal Combustion Engines

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This simplification supported by an accurate model calibration with experimental data permits to analyze and predict the engine exchange process with good accuracy by remarkably reducing the computing time in comparison to 3D-CFD-simulations. The real working-process analysis in combination with a predictive calculation of the exchange process gains in predictability, de facto, due to the absence of a validated model for the determination of the fluid motion within the combustion chamber, only the limitation in the setting of an adequate predictive combustion profile still remains.

In the last two decades, in order to assist the engine design process an increasing reliance has been set in the systematic use of simulation tools for the analysis of the operating cycle. By means of the real working-process analysis (WP), 1D- and 3D-CFD-simulations it is nowadays possible to gain, at least, a deep insight of the processes that govern engine performance and emissions. Apart from FEM simulations, it is mostly the calculation result of a 3D-CFD simulation which is shown when a "virtual engine" has to be imaged.

Model i: … others 22 2 Simulation of Internal Combustion Engines An engine simulation tool independently from its approach is actually a collection of various engine process models (physical, chemical and thermodynamic phenomena or just control/actuation models like: injector model, spark ignition model that in a successive step generate a phenomenon). 6) are the “webs” for all the information transfers among the engine process models that are needed for calculating the final results. Although the conservation equations that set the balance of the thermodynamic engine-processes are well known and evident like in any other thermodynamic system, the procedure towards a reliable and appropriate process modeling does not follow a unique way and still represents a most complicated and controversial task.

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