Results 71 to 80 of about 6,203 (293)
Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats
The Anatomical Record, EarlyView.Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin +7 more
wiley +1 more source
The Application of Non-Axisymmetric Endwall Contouring in a 1½ Stage, Rotating Turbine [PDF]
, 2011 Today gas turbines are a crucial part of the global power generation and aviation industries. Small improvements to the efficiencies of individual components within the gas flow path can, over time, lead to dramatic cost savings for the operator and at ...
SNEDDEN, GLEN,CAMPBELL +1 more
core
Modeling analysis of the mean flow velocity ahead of a rotating tidal turbine
International Marine Energy JournalThis paper presents a novel method for modeling the mean radial velocity component ahead of a rotating tidal turbine. Firstly, it examines a recent hybrid model designed to reconstruct the three-dimensional mean axial flow field in front of an ...
Philippe Druault +1 more
doaj +1 more source
Axial Thrust, Disk Frictional Losses, and Heat Transfer in a Gas Turbine Disk Cavity
Energies, 2019 The gas turbine is a kind of high-power and high-performance energy machine. Currently, it is a hot issue to improve the efficiency of the gas turbines by reducing the amount of secondary air used in the disk cavity. The precondition is to understand the
Bo Hu +5 more
doaj +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract This study investigates the relationship between artificial intelligence (AI) development and biofuel production using a balanced panel dataset of 12 European Union (EU) countries over the 2008–2024 period. Employing feasible generalized least squares (FGLS) estimation with distributed lag specifications, the analysis controls for Renewable ...
Tufan Sarıtaş +3 more
wiley +1 more source
Blade row interaction in radial turbomachines [PDF]
, 1999 A computational study has been performed to investigate the effects of blade row interaction on the performance of radial turbomachines, which was motivated by the need to improve our understanding of the blade row interaction phenomena for further ...
Sato, K., Sato, Kenji
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A Method for Optical Quantification of Local Oxygen Limitations in Multiphase Bioreactors
Biotechnology and Bioengineering, EarlyView.ABSTRACT Spatial oxygen limitation is a major source of physiological stress and metabolic, scale‐dependent heterogeneity in aerobic bioprocesses. In gas‐liquid stirred tank reactors, oxygen availability is governed by hydrodynamics and mass transfer and is therefore inherently non‐uniform.
Ryan Rautenbach +5 more
wiley +1 more source
Potential of power recovery of a subsonic axial fan in windmilling operation [PDF]
, 2013 During the last decades, efforts to find efficient green energy solutions have been widely increased in response to environmental concerns. Among all renewable energies, this paper is focused on wind power generation. To this end, a windmilling axial fan
Challas, Florent +3 more
core
NUMERICAL SIMULATION OF PERFORMANCE OF AN AXIAL TURBINE FIRST STAGE DOI 10.5028/jatm.2012.04025411
Journal of Aerospace Technology and Management, 2012 This work has presented the first stage performance at design and off-design operating points of an axial turbine, with two stages using a numerical simulation.
Vinícius Guimarães Monteiro +3 more
doaj
Advances in Mechanical Engineering, 2020 In order to meet the requirements of output torque, efficiency and compact shape of micro-spindles for small parts machining, a two-stage axial micro air turbine spindle with an axial inlet and outlet is proposed. Based on the k-ω turbulence model of SST,
Liu Jiang +4 more
doaj +1 more source