Download An innovative 3D-CFD-Approach towards Virtual Development of by Marco Chiodi PDF

By Marco Chiodi

Within the engine improvement strategy, simulation and predictive courses have consistently won in reliance. end result of the complexity of destiny inner combustion engines the functions 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, solely committed and optimized for the simulation of inner combustion engines. due to more desirable or newly built 3D-CFD-models for the outline of engine procedures, this device guarantees a good and trustworthy calculation additionally by utilizing path 3D-CFD-meshes. in keeping with this process the CPU-time will be decreased as much as an element a hundred compared to conventional 3D-CFD simulations. additionally an built-in and automated "evaluation device" establishes a complete research of the appropriate engine parameters. as a result potential of a competent "virtual improvement" of full-engines, this quickly reaction 3D-CFD-tool makes a massive contribution to the engine improvement strategy.

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7). For this reason, due to the absence of reliable local measurements of the investigated process on a real “unmodified” engine, the validation of the 3D-engine models still represents a critical and often “subjective” step. g. a pressure chamber) that allows a more accurate comparison with experimental measurements. g. from the real behavior of the process in the combustion chamber of an internal combustion engine. 3D-CFD-Model-Development Modeling of physical processes Implementation into existing 3D-codes Validation with model tests Validation with engine results 3D-CFD-Application Mesh generation Calculation Selection of promising variants Measurement & finding causes of meas.

In these situations the fuel saving is at the maximum. g. constant vehicle speed on a highway, the hybridization is useless and the car is still negatively affected by a remarkable increase of weight. 4 Development of Innovative Combustion Solutions In the last years several innovative combustion solutions for gasoline and diesel engines towards a promising reduction of fuel consumption and exhaust emissions have been investigated. The most interesting solution here is represented by the HCCI-approach (Homogeneous charge compression ignition) [3].

E. only with “courageous” development strategies the full potentiality of the internal combustion engines can be better exploited. e. a natural aspirated gasoline engine with large displacement and port injection is definitely an obsolescent concept that will be pursued no longer. In the last years a drastic change of design strategies has already started. Under these conditions engine manufacturers are ready to make decisions and introduce solutions that just few years ago would have “shocked” the market.

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