Results 11 to 20 of about 122,095 (310)
Frontiers in Physiology, 2020 Every year, a quarter million patients receive prosthetic heart valves in aortic valve replacement therapy. Prosthetic heart valves are known to lead to turbulent blood flow.
Barna Becsek +2 more
doaj +1 more source
Fluids, 2021 There are several natural and industrial applications where turbulent flows over compact porous media are relevant. However, the study of such flows is rare.
James Kofi Arthur
doaj +1 more source
Axioms, 2022 Separate flow friction formulations for laminar and turbulent regimes of flow through pipes are in common use in engineering practice. However, variation of different parameters in a system of conduits during conveying of fluids can cause changes in flow
Marko Milošević +4 more
doaj +1 more source
The unsteady turbulent flows structure study present status [PDF]
INCAS Bulletin, 2019 The processes of heat transfer and hydraulic plays a very important role in the design and prototyping of aerospace technology. In most cases this technique works under significant unsteady conditions. Steady approach for unsteady processes leads to high
Viacheslav KRAEV, Alexander MYAKOCHIN
doaj +1 more source
Unified Friction Formulation from Laminar to Fully Rough Turbulent Flow
Applied Sciences, 2018 This paper provides a new unified formula for Newtonian fluids valid for all pipe flow regimes from laminar to fully rough turbulent flow. This includes laminar flow; the unstable sharp jump from laminar to turbulent flow; and all types of turbulent ...
Dejan Brkić, Pavel Praks
doaj +1 more source
Parametric forcing approach to rough-wall turbulent channel flow [PDF]
, 2012 The effects of rough surfaces on turbulent channel flow are modelled by an extra force term in the Navier–Stokes equations. This force term contains two parameters, related to the density and the height of the roughness elements, and a shape function ...
Busse, Angela +3 more
core +1 more source
Laminarization of inhomogeneous turbulent channel flow under stable density stratification
Journal of Fluid Science and Technology, 2021 Effects of buoyancy force stabilizing the disturbances are investigated on a turbulent channel flow bounded by two walls of different temperatures. With a constant mean pressure gradient imposed, the buoyancy force related to the Grashof number (Gr) is ...
Oaki IIDA, Yoshito NAGASE
doaj +1 more source
Chameleon Attractors in Turbulent Flows
SSRN Electronic Journal, 2022 19 pages, 6 ...
Tommaso Alberti +5 more
openaire +4 more sources
Computation of turbulent flows [PDF]
7th Fluid and PlasmaDynamics Conference, 1974 Substantial advances made over the past decade in the prediction of turbulent flows are discussed. There was extensive work in the development of turbulence models, particularly for use in boundary layer calculations. Basic aspects of several important methods based on partial differential equations for the mean velocity field and turbulence quantities,
openaire +1 more source
Simulation of rough wall turbulent channel flow using a parametric forcing approach [PDF]
, 2011 The effects of rough walls on turbulent channel flow are simulated by adding a simple forcing term to the Navier-Stokes equations. An extensive parameter study is used to explore the effects of this term on turbulent channel flow.
Busse, A., Busse, A.E., Sandham, N.D.
core +1 more source