Results 21 to 30 of about 2,751,374 (249)
Scientific Reports, 2023 The phonon-drag effect is useful for improving the thermoelectric performance, especially the Seebeck coefficient. Therefore, the phonon and electron transport properties of Si single crystals at different carrier densities were investigated, and the ...
Masataka Hase +5 more
doaj +1 more source
Drag Area, Frontal Area and Drag Coefficient in Cross-Country Skiing Techniques
Proceedings, 2018 The aim of this study was to investigate the air drag, frontal area and coefficient of drag of cross-country skiing classical and free style techniques. One highly skilled cross-country skier performed skiing-like classical and free style techniques on a
Mats Ainegren, Patrik Jonsson
doaj +1 more source
Significant Phonon Drag Enables High Power Factor in the AlGaN/GaN Two-Dimensional Electron Gas [PDF]
, 2019 In typical thermoelectric energy harvesters and sensors, the Seebeck effect is caused by diffusion of electrons or holes in a temperature gradient. However, the Seebeck effect can also have a phonon drag component, due to momentum exchange between charge
Boone, Derrick +8 more
core +4 more sources
Journal of Applied Fluid Mechanics, 2019 The accuracy of experimental procedure used to calculate the drag coefficient of an Autonomous underwater vehicle (AUV) in a towing tank is investigated using computational fluid dynamics.
E. Javanmard, S. Mansoorzadeh
semanticscholar +1 more source
Mekanika, 2023 The early tsunami warning system encompasses several complex components, one of which is the Ocean Bottom Unit (OBU) floater. This paper discusses the performance of various types of floater arrays for tsunami early warning systems using Computational ...
Yudiawan Fajar Kusuma +4 more
doaj +1 more source
Drag Reduction Research on Fusion Winglet
Hangkong gongcheng jinzhan, 2018 Effectively decreasing induced drag is of important significance for the aircraft to reduce the fuel consumption and increase the flight range. Numerical simulation with CFD methods are carried out to obtain the aerodynamic characteristics, especially ...
Ma Yumin, Wei Jianlong
doaj +1 more source
Fluids, 2022 This work presents a computational fluid dynamic (CFD) analysis of a drag reduction system (DRS) used in a Formula Student competition vehicle, focusing on the interaction between the triple wing elements, as well as on the electrical actuators used to ...
Ricardo Loução +2 more
doaj +1 more source
Estimating drag coefficient for arrays of rigid cylinders representing emergent vegetation
Journal of Hydraulic Research, 2018 Flow resistance due to vegetation is of interest for a wide variety of hydraulic engineering applications. This note evaluates several practical engineering functions for estimating bulk drag coefficient () for arrays of rigid cylinders, which are ...
F. Sonnenwald, V. Stovin, I. Guymer
semanticscholar +1 more source
Drag coefficient of a liquid domain in a two-dimensional membrane
, 2010 Using a hydrodynamic theory that incorporates a momentum decay mechanism, we calculate the drag coefficient of a circular liquid domain of finite viscosity moving in a two-dimensional membrane.
Imai, Masayuki +3 more
core +1 more source
Karakteristik Aerodinamika Pontoon Pesawat NXXX Versi Amfibi
Rekayasa Mesin, 2021 Seaplanes are aircraft that can take off and landing on water. A seaplane’s requirement is its need to take off and landing on watery conditions which is equipped with a pontoon.
Andreas Maulana Irsabudi +2 more
doaj +1 more source