Results 11 to 20 of about 410,014 (263)

Structural Optimization of Jet Fish Pump Design Based on a Multi-Objective Genetic Algorithm

open access: yesEnergies, 2022
Jet fish pumps are efficient hydraulic machinery for fish transportation. Yet, the complex flow phenomenon in it is the major potential risk for damage to fish.
Maosen Xu   +7 more
doaj   +1 more source

Advanced Machine Learning Applications to Viscous Oil-Water Multi-Phase Flow

open access: yesApplied Sciences, 2022
The importance of heavy oil in the world oil market has increased over the past twenty years as light oil reserves have declined steadily. The high viscosity of this kind of unconventional oil results in high energy consumption for its transportation ...
Sayeed Rushd   +3 more
doaj   +1 more source

A Mechanical Picture of Fractal Darcy’s Law

open access: yesFractal and Fractional, 2023
The main goal of this manuscript is to generalize Darcy’s law from conventional calculus to fractal calculus in order to quantify the fluid flow in subterranean heterogeneous reservoirs.
Lucero Damián Adame   +4 more
doaj   +1 more source

Development of A New Correlation for Estimating Pressure Gradient of Oil- Water Two Phase Flow in A Horizontal Pipe [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2021
Pressure gradient of a two phase mixture in a horizontal pipe were experimentally investigated for water/super viscose oil mixtures. The mixture contained oil having a viscosity of 67 cp and density of 0.872 g/cm3, and pure water, flowing through an ...
yasha hasanzade   +4 more
doaj   +1 more source

Entropy Generation in Pressure Gradient Assisted Couette Flow with Different Thermal Boundary Conditions

open access: yesEntropy, 2006
The present paper is concerned with an analytical study of entropy generation in viscous, incompressible Couette flow between a stationary plate and a moving plate.
Abdul Aziz
doaj   +1 more source

Model experiments on the influence of tunnel hood cross-sectional area on the reduction of the pressure gradient of the compression wavefront in high-speed railways

open access: yesMechanical Engineering Journal, 2023
Micro-pressure wave emission from tunnel portals in high-speed railways causes environmental issues. Tunnel hoods installed in the tunnel portals reduce the micro-pressure wave emission by reducing the pressure gradient of the compression wavefront ...
Takashi FUKUDA, Sanetoshi SAITO
doaj   +1 more source

An Analytical Model for Wind Turbine Wakes under Pressure Gradient

open access: yesEnergies, 2022
In this study, we present an analytical modeling framework for wind turbine wakes under an arbitrary pressure gradient imposed by the base flow. The model is based on the conservation of the streamwise momentum and self-similarity of the wake velocity ...
Arslan Salim Dar, Fernando Porté-Agel
doaj   +1 more source

Non-Invasive Assessment of Intravascular Pressure Gradients: A Review of Current and Proposed Novel Methods

open access: yesDiagnostics, 2018
Invasive catheterization is associated with a low risk of serious complications. However, although it is the gold standard for measuring pressure gradients, it induces changes to blood flow and requires significant resources.
Tin-Quoc Nguyen   +5 more
doaj   +1 more source

The Pressure Gradient across the Endocardium [PDF]

open access: yes2016 Computing in Cardiology Conference (CinC), 2016
A mathematical formalism for the non-linear end-systolic pressure-volume relation (ESPVR) in the heart ventricles has the interesting feature that the peak active pressure generated by the myocardium (also called peak isovolumic pressure P isom by physiologists) is included in the mathematical formalism describing the ESPVR.
openaire   +1 more source

Contribution to boundary-layer flow analysis using the Pohlhausen method

open access: yesVojnotehnički Glasnik, 1996
The Pohlhausen’s method is applied to velocity profile calculation for a laminar boundary layer of a body in a streem with external velocity gradient. It is necessary to calculate boundary layer thickness, tangential stress and other parameters for 50 ...
Dušan Regodić
doaj   +1 more source

Home - About - Disclaimer - Privacy