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Updated: Jul 9, 2025

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Design and Optimization Strategies of a High-Performance Vented Box
Published on: June 9, 2023
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SPH模拟和实验调查的水流通过一个 Venturi 测量器的矩形截面
Leonardo Di G Sigalotti1, Carlos E Alvarado-Rodríguez2,3, Fernando Aragón4
1Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana - Azcapotzalco, Mexico City, 02128, Mexico. leonardo.sigalotti@gmail.com.
Scientific reports
|December 1, 2023
概括
抛光粒子水力动力学 (SPH) 模拟器准确地模拟了凡图里管中的水流. 这种计算流体动力学方法为流量计的实验性重新校准提供了一个有效的替代方案.
科学领域:
- 计算流体动力学 (CFD) 是一种计算流体动力学.
- 流体力学 流体力学 流体力学
- 数字模拟 数字模拟
背景情况:
- 风流计对于流量测量至关重要,但重新校准可能是昂贵和耗时的.
- 精确模拟流体动力学对于理解这些设备中的流动行为至关重要.
- 光滑粒子水力学 (SPH) 是一种无网格的方法,具有复杂流体模拟的潜力.
研究的目的:
- 通过使用增强的SPH模型模拟通过矩形风口管的水流.
- 为了验证模拟的准确性与实验数据对流体结构,速度配置和压差的验证.
- 评估SPH模型对重新校准流量计的可行性.
主要方法:
- 使用了基于光滑粒子水力学 (SPH) 的修改后的DualSPHysics代码.
- 采用了Murnaghan-Tait状态方程,用于弱压缩的水流.
- 合水力学与大型埃迪模拟 (LES) 流模型以及优化的SPH融合与C2温德兰核和非反射边界.
主要成果:
- 与400万个粒子实现了良好的融合,显示了分辨率独立性.
- 预测的中线速度配置文件与平方根平均误差为4.3% (10 lpm) 和7.1% (25 lpm).
- 不同压力预测的误差在1.4%至6.8%之间,截面速度的差异不到5.5%.
结论:
- SPH模型准确地预测了Venturi管中的水流特性.
- 与实验测量相比,模拟显示了高准确度.
- SPH提供了一种高效准确的计算方法来重新校准流量计,减少对昂贵的实验测试的依赖.
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