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Alexander Hergt, Tobias Danninger, Joachim Klinner, Sebastian Grund, Manfred Beversdorff and Christian Werner-Spatz
In this paper, an experimental and numerical investigation of the effect of leading-edge erosion in transonic blades was performed. The measurements were carried out on a linear blade cascade in the Transonic Cascade Wind Tunnel of DLR in Cologne at two ...
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Yanlin Zou, Dakui Feng, Weihua Deng, Jun Yang and Hang Zhang
Waterjet?hull interaction is the hot point and research focus in the research of waterjet-propelled crafts. This paper presents numerical studies on the interaction between a waterjet system and a catamaran. Numerical simulations of both bare hull and se...
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Yuanxing Dai, Zhenghao Liu, Wei Zhang, Jianping Chen and Jianguo Liu
This paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid?structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid?str...
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Zijing Xu, Roberto Galeazzi and Jingqi Yuan
The availability of the propulsion system is of primary importance to ensure safe and stable operations of marine crafts, both during transit and station keeping. Diminished propulsion efficiency could impair the ability of a vessel to maintain speed and...
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Hua-Wei Sun, Jing-Lei Yang, Bo Liu, Hong-Wei Li, Jia-Feng Xiao and Han-Bing Sun
A mathematical model for predicting the maneuvering motion of a ship is constructed, using a planing craft with dual waterjet propulsion as the object of study. This model is based on the standard approach of the MMG (Maneuvering Modeling Group) and uses...
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Yuan Li, Ye Ding, Bai Cheng, Junjie Cao and Lijun Yang
Monocrystalline silicon has shown great potential in constructing advanced devices in semiconductor, photoelectric, and photochemistry fields. The fabrication of micro-grooves with large depth-to-width ratio (DTWR) and low taper is in urgent demand as th...
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Kang Woo Chun, Myongho Kim and Jae-Jung Hur
As regulations on emissions from ships become stricter worldwide, new propulsion systems and the use of eco-friendly fuel are being introduced as alternative solutions. Therefore, many studies on electric propulsion systems using various power sources ar...
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Daehan Lee, Sanggi Ko, Jongyeol Park, Yong Cheol Kwon, Shin Hyung Rhee, Myungjun Jeon and Tae Hyung Kim
The present study aims to reduce the pitch motion of an assault amphibious vehicle system in seaways by waterjet impeller revolution rate control. A series of seakeeping tests were performed in a towing tank with a 1/4.5-scale model. This vehicle is manu...
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Pierre Guy Atangana Njock, Qian Zheng, Ning Zhang and Ye-Shuang Xu
This paper presents a comprehensive review on subsea jet trenching technology via a critical analysis of its principle, mechanism, devices, modeling approaches, as well as properties of subsea sediments. This review shows that the success of jet trenchin...
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Pedro F. Mayuet Ares, Lucía Rodríguez-Parada, Álvaro Gómez-Parra and Moises Batista Ponce
Metal matrix composite (MMC) materials are increasingly used in industrial sectors such as energy, structural, aerospace, and automotive. This is due to the improvement of properties by the addition of reinforcements. Thus, it is possible to obtain prope...
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