When solving real-world engineering problems, simplified models are commonly used to improve the calculation efficiency. However, the obtained simulation results are usually with low accuracy. Some researches are conducted to investigate the impact of feature-based model simplification on simulation results. First, models with similar features of different parameters are simplified. Then the simplified model and the corresponding original model are simulated in the same boundary conditions. And the simulation results between the simplified and original model are evaluated with some validation metrics. Finally, through an engineering case, some conclusions are obtained about the impacts of the features with different sizes and locations on simulation results.

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