In situ multi-perspective scanning of 3D particle deposition on flat plates with film cooling and determination of practical model parameters

Zhang, Tianlun; Dong, Zhe; Huang, Weichen; Zhou, Wenwu; Tian, Wei; Peng, Di; Liu, Yingzheng

doi:10.1016/j.expthermflusci.2023.111109

Experimental Thermal and Fluid Science

2024

DOI: 10.1016/j.expthermflusci.2023.111109

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In situ multi-perspective scanning of 3D particle deposition on flat plates with film cooling and determination of practical model parameters

Tianlun Zhang,

Zhe Dong,

Weichen Huang

et al.

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2024

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Cited by 2 publications

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Novel Shaped Sweeping Jet for Improved Film Cooling and Anti-Deposition Performance

Zhou,

Wang,

Zhang

et al. 2024

J. Therm. Sci.

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Novel Shaped Sweeping Jet for Improved Film Cooling and Anti-Deposition Performance

Zhou,

Wang,

Zhang

et al. 2024

J. Therm. Sci.

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Enhanced Antideposition Performance of Film Cooling With a Shaped Sweeping Jet Hole

Zhang,

Huang,

Wang

et al. 2024

Journal of Turbomachinery

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Shaped sweeping jet (SSJ) holes represent an advancement in sweeping jet (SJ) technology, as they offer enhanced cooling performance. To reveal the anti-deposition capabilities of SSJs, particle deposition results of 777-shaped and SSJ holes were compared through a combination of experiments and numerical simulations. Three-dimensional (3D) deposition topography was measured through the multi-perspective scanning (MPS) method across various blowing ratios (M = 0.5, 1.0, 1.5, and 2.0). The findings revealed that SSJ holes exhibited superior anti-deposition performance across a range of blowing ratios, resulting in a 5%–14% reduction in deposition roughness compared with the 777-shaped holes. To improve the precision of particle deposition simulations, a novel deposition-and-removal model incorporating an unsteady simulation strategy was developed and quantitatively validated against experimental results. Computational analyses revealed that the remarkable anti-deposition performance of SSJ holes was due to the formation of unique vortex structures, distinct from the counter-rotating vortex pair, and the increased level of periodic oscillation-induced wall shear stress near the hole exit. These findings underscore the potential of SSJ technology in film cooling applications to mitigate deposition concerns.

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In situ multi-perspective scanning of 3D particle deposition on flat plates with film cooling and determination of practical model parameters

Cited by 2 publications

References 32 publications

Novel Shaped Sweeping Jet for Improved Film Cooling and Anti-Deposition Performance

Novel Shaped Sweeping Jet for Improved Film Cooling and Anti-Deposition Performance

Enhanced Antideposition Performance of Film Cooling With a Shaped Sweeping Jet Hole

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