Bursting Phenomena in a Turbulent Square-Duct Flow.
نویسندگان
چکیده
منابع مشابه
Characterisation of Marginally Turbulent Square Duct Flow
We have performed direct numerical simulation of fully developed turbulent flow in a straight duct with square cross-section. The main objective of the present study is to determine the minimal requirements for maintaining turbulence in duct flows [1]. A detailed analysis of this limit regime allows to elucidate the dominant mechanisms governing the marginally turbulent state, where the self-su...
متن کاملParticle Transport in a Turbulent Square Duct Flow with an Imposed Magnetic Field
In this paper we study the particle transport and deposition in a turbulent square duct flow with an imposed magnetic field using Direct Numerical Simulations (DNS) of the continuous flow. A magnetic field induces a current and the interaction of this current with the magnetic field generates a Lorentz force which brakes the flow and modifies the flow structure. A second-order accurate finite v...
متن کاملRoughness-induced critical phenomena in a turbulent flow.
I present empirical evidence that turbulent flows are closely analogous to critical phenomena, from a reanalysis of friction factor measurements in rough pipes. The data collapse found here corresponds to Widom scaling near critical points, and implies that a full understanding of turbulence requires explicit accounting for boundary roughness.
متن کاملHeat transfer in MHD square duct flow of nanofluid with discrete heat sources
The effect of thermal and solutal buoyancy induced by a discrete source of heat and mass transfer in a square duct under the influence of magnetic field, especially at the turbulent regime for the first time is reported. Al2O3/water nanofluid is used with constant heat flux from three discrete heat sources. In the present study, the effects of Reynolds number (100 to 3000), particle volume frac...
متن کاملBursting Phenomena in Excitable Membranes
A generalized Hodgkin-Huxley model of excitable membranes is defined, and traveling wave solutions of the model are analyzed using singular perturbation methods in phase space. A complete classification determines whether a system exhibits finite wave train and periodic bursting behavior or only single pulse and regular periodic behavior. Qualitative properties of the bursts are deduced and use...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JSME International Journal Series B
سال: 1998
ISSN: 1340-8054,1347-5371
DOI: 10.1299/jsmeb.41.245