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Chih-yung Wen

Researcher at Hong Kong Polytechnic University

Publications -  225
Citations -  3997

Chih-yung Wen is an academic researcher from Hong Kong Polytechnic University. The author has contributed to research in topics: Hypersonic speed & Mach number. The author has an hindex of 29, co-authored 198 publications receiving 2789 citations. Previous affiliations of Chih-yung Wen include Dayeh University & California Institute of Technology.

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A Camera-Based Target Detection and Positioning UAV System for Search and Rescue (SAR) Purposes.

TL;DR: An all-in-one camera-based target detection and positioning system is developed and integrated into a fully autonomous fixed-wing UAV, capable of on-board, real-time target identification, post-target identification and location and aerial image collection for further mapping applications.
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Recent advances in fuel cells based propulsion systems for unmanned aerial vehicles

TL;DR: A general description of the working principle of fuel cells and the category of unmanned aerial vehicles is provided, two types of propulsion systems that involve fuel cells are introduced, i.e., pure fuel cell system and hybrid system, and the design methods and simulation cases are described as well as summarizes the practical flight tests.
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Experimental and numerical study of the separation angle for flow around a circular cylinder at low Reynolds number

TL;DR: In this article, the separation point of the flow around a circular cylinder has been numerically and experimentally investigated in the regime of Reynolds number less than 280, and the results reveal that the long-existing discrepancy in the data concerning the time-averaged separation angles reported in the literature results mainly from the oscillating characteristics of flow separation on the cylinder surface and the experimental methodologies rather than the commonly mentioned blockage-ratio effect.
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Non-equilibrium dissociating flow over spheres

TL;DR: In this paper, the correlation of dissociative non-equilibrium effects on the flow field in front of blunt bodies was corrected to take into account the additional parameter of the dimensionless free-stream kinetic energy, and extended to the case of complex gas mixtures with many species and many reactions.
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Estimation of wind power generation in dense urban area

TL;DR: In this article, the authors developed computational fluid dynamics (CFD)-based evaluation procedures to determine potential mounting sites of wind turbines and obtain estimates of wind power by taking into consideration the details of the local urban topography and boundary conditions of micro-environments.