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Cheng Qian, Siyu He, Wei Qin, Youcong Jiang, Zishun Huang, Meilin Zhang, Minghua Zhang, Wenwu Yang and Ying Zang
The double-hole rice vacuum seed meter is critical equipment for the planting precision of rice direct seeding. The effects of shaped holes and seed disturbance on the precision of rice bunch planting were investigated to improve the precision of bunch p...
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Kefu Wang, Yiqun Ao, Kai Zhao, Tao Zhou and Feng Li
Shaped cooling holes have received considerable attention in recent years due to their potential to improve heat transfer while minimizing pressure drop. In this study, the effects of lobe-shaped cooling holes on film cooling performance and turbulent fl...
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Wenbo Du, Chupeng Yang, Huodai Zhang, Jinwei Gao, Mingming Wen, Xiaosan Hu, Ziying Xu, Xin Nie and Rongwei Zhu
Submarine sinkholes are unique and important geomorphological features with a typical cavity structure that are of great scientific value. Submarine sinkholes were discovered for the first time in the isolated Ganquan carbonate platform on the Xisha Isla...
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Huajin Shao, Yanfei Zuo and Zhinong Jiang
A method for dynamic finite element (FE) model updating based on correlated mode auto-pairing and adaptive evolution screening (CMPES) is proposed to overcome difficulties in pairing inaccurate analytical modal data and incomplete experimental modal data...
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Wenlong Mao, Tianwen Wang and Yiming Shu
This paper focuses on the impact of geotextile tube damage at the joints between tubes on dam structures subjected to seepage. First, a seepage-induced failure critical gradient model for damaged geotextile tubes was developed. Tests were conducted using...
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Pedro Cobo
Although the original proposal of microperforated panels by Maa consisted of an array of minute circular holes evenly distributed in a thin plate, other hole geometries have been recently suggested that provide similar absorption curves to those of circu...
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Tommaso Bacci, Alessio Picchi and Bruno Facchini
Shaped holes are considered as an effective solution to enhance gas turbine film-cooling performance, as they allow to increase the coolant mass-flux, while limiting the detrimental lift-off phenomena. A great amount of work has been carried out in past ...
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Samaneh Rouina, Silvia Ravelli and Giovanna Barigozzi
The present paper reports the results of an experimental and computational investigation of flat plate film cooling jets discharged from three fan-shaped holes. Measurements have been carried out at near unity density ratio in a low-speed wind tunnel, at...
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Xiuhai Wang, Chaoqi Zhu and Hongjun Liu
Geological disasters of seabed instability are widely distributed in the Yellow River Delta, posing a serious threat to the safety of offshore oil platforms and submarine pipelines. Waves act as one of the main factors causing the frequent occurrence of ...
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Wei Shi, Pingting Chen, Xueying Li, Jing Ren and Hongde Jiang
The film cooling holes in the blade of modern gas turbines have commonly been manufactured by laser drilling, Electric Discharge Machining (EDM), and Additive Manufacturing (AM) in recent years. These manufacturing processes often result in small geometr...
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