Results 31 to 40 of about 44,492 (300)

Von K\'arm\'an vortex street in a Bose-Einstein condensate

open access: yes, 2010
Vortex shedding from an obstacle potential moving in a Bose-Einstein condensate is investigated. Long-lived alternately aligned vortex pairs are found to form in the wake, as for the von K\'arm\'an vortex street in classical viscous fluids.
H. Bénard   +5 more
core   +1 more source

Poro-Serrated trailing edge devices for airfoil self-noise reduction [PDF]

open access: yes, 2015
This paper represents the continuation of the works previously published in Chong et al. (“Self-Noise Produced by an Airfoil with Nonflat Plate Trailing-Edge Serrations,” AIAA Journal, Vol. 51, No. 11, 2013, pp. 2665–2677), who used several nonflat plate
Chong, TP, Joseph, PF, Vathylakis, A
core   +1 more source

Nonlinear dynamics and pattern formation in turbulent wake transition [PDF]

open access: yes, 1997
Results are reported on direct numerical simulations of transition from two-dimensional to three-dimensional states due to secondary instability in the wake of a circular cylinder. These calculations quantify the nonlinear response of the system to three-
Henderson, Ronald D.
core   +1 more source

The essence of generating vortex-within-a-vortex structures behind forked caudal fins

open access: yesAIP Advances, 2022
This work focuses on vortex-within-a-vortex (VV) structures behind three different shapes of forked caudal fin with a heaving-pitching motion. The results show that the synchronization of trailing-edge vortex separation and the shedding of the leading ...
Zhongying Xiong
doaj   +1 more source

Research on the Unsteady Flow and Vortex Characteristics of Cavitation at the Tongue in Centrifugal Pump [PDF]

open access: yesJournal of Applied Fluid Mechanics
In order to study the unsteady flow and vortex characteristics of tongue cavitation, numerical calculation is carried out for the whole flow channel given different conditions. Then, the calculation results are verified experimentally.
Z. Y. Luo   +5 more
doaj   +1 more source

Effects of swirl numbers on the unsteady characteristics of pilot flame in a triple-swirler staged combustor

open access: yesCase Studies in Thermal Engineering, 2023
This paper studies the effects of the inner and outer pilot swirlers on the flame structures and thermo-acoustic instabilities in the triple-swirler staged combustors under various inner and outer pilot swirl numbers.
Tao Zhou   +5 more
doaj   +1 more source

Digital twins to accelerate target identification and drug development for immune‐mediated disorders

open access: yesFEBS Open Bio, EarlyView.
Digital twins integrate patient‐derived molecular and clinical data into personalised computational models that simulate disease mechanisms. They enable rapid identification and validation of therapeutic targets, prediction of drug responses, and prioritisation of candidate interventions.
Anna Niarakis, Philippe Moingeon
wiley   +1 more source

Investigation on mechanism of flow induced vibration of spiral tube bundle in cross lead bismuth flow

open access: yesHe jishu, 2021
BackgroundThe flow induced vibration of spiral tube bundle widely exists engineering practice. The traditional fluid medium is water and air, whilst lead bismuth fluid has gradually become a new heat exchange medium in recent years.PurposeThis study aims
WANG Zhengyang   +5 more
doaj   +1 more source

Lagrangian and spectral analysis of the forced flow past a circular cylinder using pulsed tangential jets [PDF]

open access: yes, 2012
We numerically investigate the influence of pulsed tangential jets on the flow past a circular cylinder. To this end a spectral-Lagrangian dual approach is completed on the basis of time-series data.
Bury, Yannick, Jardin, Thierry
core   +3 more sources

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

open access: yesFEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik   +6 more
wiley   +1 more source

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