用后向阶跃结构改造内腔改善流体振荡器性能的研究

IF 6 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Ain Shams Engineering Journal Pub Date : 2025-02-22 DOI:10.1016/j.asej.2025.103323

Waridho Iskandar , James Julian , Ming-Jyh Chern , Harinaldi

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引用次数: 0

摘要

采用计算方法，根据LR和HR的变化对BFSFO进行建模，使其具有更高的频率和更低的平均压降。与洁净流体振荡器相比，BFSFO LR 0.402 HR 0.4的频率提高了33.17%，优于其他变量。相对于BFSFO基线，BFSFO LR 0.402 HR 0.4的频率增加了8.95%。平均压降比洁净流体振荡器高1.27%。相对于BFSFO基线，BFSFO平均压降LR 0.402 HR 0.4下降了15.21%。由于上下反馈通道中动量较大的流体流动，振荡频率增加。BFSFO LR 0.402 HR 0.4的循环气泡小于BFSFO基线，导致平均压降较低。

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Investigation of fluidic oscillator performance improvements by modifying interior chamber with a backward facing step geometry

A computational method is used to model the BFSFO with variations in LR and HR to make it more efficient with high frequency and low average pressure drop. BFSFO LR 0.402 HR 0.4 outperformed the other variations with a frequency increase of 33.17% compared to the clean fluidic oscillator. The increase in frequency of BFSFO LR 0.402 HR 0.4 relative to the BFSFO baseline is 8.95%. The average pressure drop is 1.27% higher than clean fluidic oscillator. The decrease in the average pressure drop of BFSFO LR 0.402 HR 0.4 relative to the BFSFO baseline is 15.21%. The oscillation frequency increased due to the fluid flow with higher momentum in the upper and lower feedback channels. The circulation bubble in BFSFO LR 0.402 HR 0.4 is smaller than that in the BFSFO baseline, resulting in a lower average pressure drop.

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来源期刊

Ain Shams Engineering Journal Engineering-General Engineering

CiteScore

10.80

自引率

13.30%

发文量

441

审稿时长

49 weeks

期刊介绍： in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.