Results 71 to 80 of about 4,577,448 (235)

Turbulence Formation due to Vortices Interaction in the Laminar Channel Flow behind the Rib [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
This paper is devoted to the study of local laminar-turbulent transition mechanisms in the channel flow behind the semi-circular rib. Using direct numerical simulation, it was demonstrated that the transition occurs mainly due to the interaction of ...
A.B. Mazo, D.I. Okhotnikov
doaj  

Influences of Flow Attack Angles and Flow Directions on Heat Transfer Rate, Pressure Loss, and Thermal Performance in Heat Exchanger Tube with V-Wavy Surface

open access: yesModelling and Simulation in Engineering, 2018
Numerical investigations on flow and heat transfer characteristics in the heat exchanger tube with the V-wavy surface are presented. The finite volume method with the SIMPLE algorithm is selected to solve the present problem.
Amnart Boonloi   +1 more
doaj   +1 more source

Flow phenomena in laminar flow through streamlined and sharp-edged short monolithic structures. [PDF]

open access: yesSci Rep, 2023
Korpyś M   +5 more
europepmc   +1 more source

A Comparative CFD Study on Laminar and Turbulent Flow Fields in Dual-Rushton Turbine Stirred Vessels

open access: yesJournal of Applied Fluid Mechanics, 2020
A computational fluid dynamics(CFD) simulation was carried out to study on flow field characteristics in dual-Rusthton turbine stirred vessels in laminar and turbulent regimes. Model validation was conducted using experimental data in the literature. The
L. C. Li   +3 more
doaj  

Transition from laminar to turbulent pipe flow as a process of growing material instabilities

open access: yesResults in Engineering
Experiments show that a laminar pipe flow starts to change to turbulence at Reynolds numbers around 2000. However, the classical Navier-Stokes theory fails to explain such a transition; according to it the pipe flow should always be stable and laminar ...
Saptarshi Kumar Lahiri   +1 more
doaj  

Preliminary Results in the Investigation of In Vivo Iliac and Coronary Flow Collision, Vortex Formation, and Disorganized Flow Degeneration: Insights from Invasive Cardiology Based on Fluid Mechanics Principles and Practices

open access: yesFluids
Background: In the research of coronary artery disease, the precise initial injury that starts the atherosclerotic cascade remains unidentified. Moreover, the mechanisms governing the progression or regression of coronary plaque are not yet fully ...
Thach Nguyen   +22 more
doaj   +1 more source

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