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Ri Wang, Fengfei Lou, Bin Qi, Rong A, Yuanye Zhou and Sujun Dong
In this paper, aimed at the problem of large temperature gradient thermal testing with the typical sharp wedge leading edge structure of a hypersonic vehicle, a subsonic high-temperature combustion gas heating (SHCH) test device is used to conduct a seri...
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Daixiao Lu, Zhiliang Lu, Zhirong Han, Xian Xu and Ying Huang
The blockage is one of the important factors affecting the icing of airfoils in wind tunnel tests. In this paper, numerical simulations are conducted to study the effect of blockage on the icing of different airfoils. By reducing the height of testing wi...
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Nazrul Azlan Abdul Samat, Norfifah Bachok and Norihan Md Arifin
The present study aims to offer new numerical solutions and optimisation strategies for the fluid flow and heat transfer behaviour at a stagnation point through a nonlinear sheet that is expanding or contracting in water-based hybrid nanofluids. Most hyb...
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Akito Ouchi, Yukihiro Shimatani, Hiroshi Takata and Tomoko Minagawa
In recent years, climate change has occurred on a global scale, causing frequent flooding in many regions. In response to this situation, watershed-wide flood management is attracting attention around the world as a promising approach. Under these situat...
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Ho-Sang Jang, Se-Yun Hwang and Jang-Hyun Lee
This study examines the heat flux and convective heat transfer generated when a vertical take-off and landing (VTOL) aircraft takes off and lands on the flight deck of a naval vessel. A procedure for analyzing the convective heat transfer imposed on the ...
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Najwa Najib, Norfifah Bachok, Norihan Md Arifin and Fadzilah Md Ali
The mathematical model of the two-dimensional steady stagnation-point flow over a stretching or shrinking sheet of nanofluid in the presence of the Soret and Dufour effects and of second-order slip at the boundary was considered in this paper. The partia...
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Di Zhang, Hongliang Wang, Jinhua Liu, Chuan Wang, Jie Ge, Yong Zhu, Xinxin Chen and Bo Hu
To study the influence of impinging height H/D on the flow field characteristics of oblique submerged impinging jets, the numerical calculation of an oblique submerged impinging jet was carried out based on Wray?Agarwal (W?A) turbulence model. The jet fl...
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Asrori Asrori,Sudjito Suparman,Slamet Wahyudi,Denny Widhiyanuriyawan
Pág. 31 - 41
The study to investigate the thermal performance of solar cooker using a spot Fresnel lens for concentrators of solar thermal energy is conducted.The main objectives of the present work are:a) to develop a new design of the cooking pot of solar cook...
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Peter F. Pelz, Paul Taubert and Ferdinand-J. Cloos
This paper models the kinematics of the vortex system of an encased axial turbomachine at part load and overload applying analytical methods. Thus far, the influence of the casing and the tip clearance on the kinematics have been solved separately. The v...
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Junmou Shen, Zongjie Shao, Feng Ji, Xing Chen, Hongbo Lu and Handong Ma
High enthalpy stagnation gas can be converted into hypervelocity flow through the contraction?expansion nozzle. The enthalpy flow in the nozzle can be divided into three regions: an equilibrium region, a non-equilibrium region, and a frozen region. The s...
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Bin Li, Jianlin Mao, Shuyi Yin, Lixia Fu and Yan Wang
Autonomous underwater vehicle (AUV) path planning in complex marine environments meets many chanllenges, such as many influencing factors, complex models and the performance of the optimization algorithm to be improved. To find a path with minimum cost o...
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Zhifeng Zhou, Zhichao Zhang, Zhenxun Gao, Ke Xu and Chun-Hian Lee
Numerical simulations of hypersonic magnetohydrodynamics (MHD) flow over a typical sphere?cone blunt body are carried out based on the assumption of a low magnetic Reynolds number. The effects of an external dipole magnetic field on the surface heat flux...
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Hao Dai, Chengxiang Zhu, Ning Zhao, Chunling Zhu and Yufei Cai
An unsteady tightly-coupled icing model is established in this paper to solve the numerical simulation problem of unsteady aircraft icing. The multi-media fluid of air and droplets is regarded as a single medium fluid with variable material properties. T...
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Jaroslav Burian, Karel Macku, Jarmila Zimmermannová and Rostislav Nétek
Only a limited number of studies have examined land price issues based on official land price maps. A very unique timeline of official land price maps (2006?2019) allowed research to be conducted on four Czech cities (Prague, Olomouc, Ostrava, and Zlín)....
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Adrian Stone, Bruno Merven, Tiisetso Maseela, Resmun Moonsamy
AbstractIt is key for national economic planning to build the tools to forecast energy demand from major sectors like transport in a credible way. As a starting point, this requires building a sufficiently detailed ?bottom-up? picture of technologies and...
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Ana Maria Aquino dos Anjos Ottati,Paulo Dabdab Waquil
Pág. 339 - 350
O artigo apresenta uma análise sobre o nível de desenvolvimento dos municípios maranhensesa partir do cálculo do Índice de Desenvolvimento Municipal (IDM) para os anos de 1980, 1991, 2000 e 2010. Busca verificar os resultados dos diversos projetos de des...
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Abdallah Samad, Eric Villeneuve, François Morency and Christophe Volat
In-flight icing affects helicopter performance, limits its operations, and reduces safety. The convective heat transfer is an important parameter in numerical icing simulations and state-of-the-art icing/de-icing codes utilize important computing resourc...
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klaus Solberg Söilen
It is often heard, and even more often seen written, for example on social media, that that there is nothing new in the competitive intelligence (CI) field. There are no new ideas, the ideas that are being expressed are the same old, there is no developm...
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