Results 31 to 40 of about 123,614 (247)

Flood Mapping from Dam Break Due to Peak Inflow: A Coupled Rainfall–Runoff and Hydraulic Models Approach

open access: yesHydrology, 2021
In this study, we conducted flood mapping of a hypothetical dam break by coupling the Hydrologic Engineering Center’s Hydrologic Modeling System (HEC-HMS) and River Analysis System (HEC-RAS) models under different return periods of flood inflow.
Mihretab G. Tedla   +2 more
doaj   +1 more source

An alternative architecture of the Humphrey cycle and the effect of fuel type on its efficiency

open access: yesEnergy Science & Engineering, 2020
Conventional gas turbines are a very mature technology, and performance improvements are becoming increasingly difficult and costly to achieve. Pressure‐gain combustion (PGC) has emerged as a promising technology in this respect, due to the higher ...
Panagiotis Stathopoulos
doaj   +1 more source

Theory and computations for breakup of unsteady subsonic or supersonic separating flows [PDF]

open access: yes, 1994
This study of flow just beyond a breakaway-separation point presents a description of planar nonlinear unsteady effects over a fairly wide parameter range, for a subsonic or supersonic boundary layer at large Reynolds numbers.
Vickers, IP   +3 more
core   +1 more source

Unsteady Oblique Detonation Waves in a Tunnel Induced by Inflow Mach Number Variation

open access: yesAerospace, 2023
Oblique detonation waves (ODWs) have been investigated widely aiming at facilitating their application in hypersonic engines. However, there is a lack of research on unsteady ODWs which are unavoidable in the hypersonic air-breathing scenario.
Shuzhen Niu   +3 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

Heat Transfer Analysis and Effects of (Silver and Gold) Nanoparticles on Blood Flow Inside Arterial Stenosis

open access: yesApplied Sciences, 2022
The current investigation was based on a simulation employing CFD in COMSOL Multiphysics. The base fluid that was used in this simulation was blood. The flow was considered as a laminar, unsteady and incompressible Newtonian fluid, and the Newtonian ...
Azad Hussain   +7 more
doaj   +1 more source

3D unsteady flow in oscillating compressor cascade [PDF]

open access: yes, 2004
An experimental and computational study has been carried out to enhance current understanding of three dimensional (3D) cascade aeroelastic mechanisms. 3D unsteady pressure data produced during executing this project is the first-of-its-kind, which can ...
Yang, Hui
core  

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

open access: yesAdvanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou   +4 more
wiley   +1 more source

Numerical Method for Aeroelastic Simulation of Flexible Aircraft in High Maneuver Flight Based on Rigid–Flexible Model

open access: yesApplied Sciences
Traditional elastic correction methods fail to address the significant aeroelastic interactions arising from unsteady flow fields and structural deformations during aggressive maneuvers.
Shuang Chen, Pengzhen He, Shuling Tian
doaj   +1 more source

Stator Design Method in Rotor–Stator Interference Flow Fields in Order to Suppress the Vibration of Bladed Disks

open access: yesApplied Sciences, 2022
Based on the computation and analysis of three-dimensional unsteady flow induced by rotor/stator interactions, the characteristics of flow excitation towards bladed disks were studied, including frequency components and circumferential wave components ...
Haoran Ma, Zhou Zhou, Lin Li
doaj   +1 more source

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