Results 51 to 60 of about 4,373 (227)
IEEE AccessAdditive manufacturing has enabled the use of advanced geometries such as lattice-structures in heatsinks. This study investigates the thermal performance of various advanced heatsink designs in the context of cooling the windings of an axial flux motor ...
Martin Sarap +6 more
doaj +1 more source
Innovative Blade‐Structured Rotor Design for Enhanced Self‐Cooling in Permanent Magnet Machines
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.This paper proposes a novel self‐cooling solution for surface‐mounted permanent magnet machines using a blade‐structured rotor that draws cooling air through the machine during operation. The design effectively removes heat from critical components, such as end‐windings and magnets, without additional fans or wafters.
Kaile Li, Guang‐Jin Li
wiley +1 more source
A Soft Bionic Pectoral Fin Actuated by a Series of Differential Gear Units
Journal of Marine Science and EngineeringThe bionic pectoral fin serves as the primary propulsion component of ray-inspired robots. In our previous research, a motion equation was proposed for the real pectoral fin, which can be modeled as a series of NACA airfoil-shaped cross-sections ...
Chaowu Sheng +6 more
doaj +1 more source
Improvements in Heat Transfer for Anti-Icing of Gas-Heated Airfoils with Internal Fins and Partitions [PDF]
The effect of modifying the gas passage of hollow metal airfoils by the additIon of internal fins and partitions was experimentally investigated and comparisons were made among a basic unfinned airfoil section and two airfoil designs having metal fins ...
Gray, Vernon H.
core +1 more source
International Journal of Energy Research, Volume 2025, Issue 1, 2025.With a view to finding the best approach to maximize the wind energy harvesting from wind turbines, this research has focused towards assessing the effects of different innovative modifications to wind turbines at different wind speed conditions and comparing them in terms of aerodynamic performance, economy, and environmental impact.
Mim Mashrur Ahmed +4 more
wiley +1 more source
Pressure-loss and flow coefficients inside a chordwise-finned, impingement, convection, and film air-cooled turbine vane [PDF]
Total-pressure-loss coefficients, flow discharge coefficients, and friction factors were determined experimentally for the various area and geometry changes and flow passages within an air-cooled turbine vane.
Hippensteele, S. A.
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International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.The increasingly prominent function of unmanned aerial vehicles (UAVs) across fields ranging from logistics and surveillance to farming and research calls for ongoing innovation in their flight efficiency. This study probes the effect of making strategic alterations in the designs of UAVs’ wings, including the implementation of dogtooth shapes, on such
Mohammad Hossein Moghimi Esfandabadi +3 more
wiley +1 more source
Low-speed wind-tunnel investigation of wing fins as trailing-vortex-alleviation devices on a transport airplane model [PDF]
The trailing-vortex-alleviation effectiveness of both a one- and a two-fin configuration (semicircular with a radius of 0.043 semispan) on a jumbo-jet transport airplane model in its landing configuration was investigated in the Langley V/STOL tunnel, by
Croom, D. R., Holbrook, G. T.
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, 1981 An annular wing particularly suited for use in supporting in flight an aircraft characterized by the absence of directional stabilizing surfaces is described.
Walker, H. J.
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Journal of Engineering, Volume 2025, Issue 1, 2025.A round tube heat exchanger (RTHE) with combined vortex generators (CVGs) is subjected to numerical assessments of its airflows and thermal characteristics. The CVGs are V‐shaped ribs and rectangular winglets. The effects of CVG arrangement (A‐1, A‐2, and B), blockage ratio (b1/H and b2/D), and airflow direction (+x, −x) on airflow and thermal behavior
Amnart Boonloi +2 more
wiley +1 more source