Results 1 to 10 of about 598,432 (318)

Investigation of periodic characteristics of perturbed flow over a slender body

open access: yesHeliyon, 2023
The asymmetric flow over a slender body was particularly sensitive to the nose at a high angle of attack (AoA). Two patterns of separation occurred on the noses of the pointed-nosed slender body and blunt-nosed slender body as open- and close-type ...
Li Zhao, Yankui Wang, Zhongyang Qi
doaj   +1 more source

A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers

open access: yesJournal of Marine Science and Engineering, 2022
Active surface morphing is a nonintrusive flow control technique that can delay separation in laminar and turbulent boundary layers. Most of the experimental studies of such control strategy have been carried out in wind tunnels at low Reynolds numbers ...
Abel Arredondo-Galeana   +2 more
doaj   +1 more source

Hydrostructural Phenomena in a Wastewater Screening Channel with an Ascendable Sub-Screen Using the Arbitrary Lagrangian–Eulerian Approach

open access: yesApplied Sciences, 2023
Wastewater invariably accumulates soluble and insoluble waste and requires treatment at a wastewater treatment plant (WTP) to become reusable. The preliminary screening of insoluble waste occurs through a wastewater screening mechanism (WSM) before ...
Shehnaz Akhtar   +4 more
doaj   +1 more source

Phase Separation in a Chaotic Flow [PDF]

open access: yesPhysical Review Letters, 2001
Minor changes - Version accepted for publication - Physical Review ...
Berthier, Ludovic   +2 more
openaire   +3 more sources

RANS CFD Analysis of Hump Formation Mechanism in Double-Suction Centrifugal Pump under Part Load Condition

open access: yesEnergies, 2021
The RANS (Reynolds-averaged Navier–Stokes equations) with CFD (Computational Fluid Dynamics) simulation method is used to analyze the head hump formation mechanism in the double-suction centrifugal pump under a part load condition.
Yong Liu   +5 more
doaj   +1 more source

Multi-Objective Optimization of Aerodynamic Performance for a Small Single-Stage Turbine [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
In order to improve the performance of single-stage turbines, blade profiling optimization was conducted for the guide vane and rotor under design condition.
Q. Tang, H. Wu, H. Lou
doaj   +1 more source

Flow Characteristics of a Mixed Compression Hypersonic Intake [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The flow field in a two-dimensional hypersonic mixed-compression inlet in a freestream Mach numbers of M∞ =2.0, 3.0, and 5.0 are numerically solved to understand the effect of throat area variation. The exit area ratio variation is simulated by placing a
J. K. James, H. D. Kim
doaj   +1 more source

Study on Separation Characteristics of Nozzles with Large Expansion Ratio of Solid Rocket Motors

open access: yesAerospace, 2022
In order to study the flow characteristics of a nozzle with large expansion ratio and its influence on the force on the nozzle, ground cold flow test research and a fluid–structure coupling simulation analysis were carried out (maximum expansion ratio ε =
Zhihong Wang   +2 more
doaj   +1 more source

The Effects of Stratification on Flow Separation [PDF]

open access: yesJournal of the Atmospheric Sciences, 2005
Abstract Separation of stratified flow over a two-dimensional hill is inhibited or facilitated by acceleration or deceleration of the flow just outside the attached boundary layer. In this note, an expression is derived for this acceleration or deceleration in terms of streamline curvature and stratification.
Ambaum, M, Marshall, D
openaire   +1 more source

Exploring the impact of vertically separated flows on wind loads of multi-level structures

open access: yesFrontiers in Physics, 2023
The complex dynamics of vertically separated flows pose a significant challenge when it comes to assessing the wind loads on multi-level structures, demanding a nuanced understanding of the intricate interplay between atmospheric conditions and ...
Chia Mohammadjani, Ioannis Zisis
doaj   +1 more source

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