Results 61 to 70 of about 503,944 (360)
Fluid Dynamic Relationships Involved in Circulation Cleaning
Abstract Removal of milk deposits on metal pipes using only fluid flow, without benefit of detergent materials, was studied. Soil removal rate was linear at flow rates between 4,000 and 30,000 kg/hour, representing Reynolds Numbers of from 85,000 to 600,000, demonstrating that cleaning effectiveness steadily improved as the pumping rate increased. Use
C.E. Carver, D.J. Hankinson
openaire +2 more sources
Optimal Design and Operation of Dual-Ejector PEMFC Hydrogen Supply and Circulation System
A proton exchange membrane fuel cell (PEMFC) system requires an adequate hydrogen supply and circulation to achieve its expected performance and operating life.
Li Chen+4 more
doaj +1 more source
Hamiltonian approach to hybrid plasma models [PDF]
The Hamiltonian structures of several hybrid kinetic-fluid models are identified explicitly, upon considering collisionless Vlasov dynamics for the hot particles interacting with a bulk fluid.
Cesare Tronci+8 more
core +1 more source
Si3N4 and Si3N4/SiC composite rings for dynamic sealing of circulating fluids [PDF]
Abstract Silicon nitride (Si3N4) and silicon nitride/silicon carbide (Si3N4/30 wt.% SiC) seal rings were tested as self-mated pairs and dissimilar sealing systems against grey cast iron. The tribological experiments were conducted in a ring-on-ring tribometer at V≈4 m s−1 of linear speed, in the range of 0.3–1 kN of applied load, under a pressure of ...
Carrapichano, J. M.+3 more
openaire +3 more sources
TO THE QUESTION OF CONTROL OF HYDRAULIC MODES OF THE HEAT NETWORK
The mathematical modeling program Computational fluid dynamics is used. Research allows you to take into account all the factors affecting changes in hydrostatic pressure, to study the interaction process of the circulation pump, make-up unit and the ...
Alexey Andreevich Alekseev+1 more
doaj +1 more source
Implications of Kunita–Itô–Wentzell Formula for k-Forms in Stochastic Fluid Dynamics [PDF]
We extend the Itô–Wentzell formula for the evolution of a time-dependent stochastic field along a semimartingale to k-form-valued stochastic processes. The result is the Kunita–Itô–Wentzell (KIW) formula for k-forms.
Aythami Bethencourt de L'eon+3 more
semanticscholar +1 more source
Material derivatives of higher dimension in geophysical fluid dynamics
The familiar operator D/Dt in fluid dynamics defines the material derivative for a fluid particle with dimension zero. In this paper we define and use "macroscopic" or multidimensional material derivatives D1/Dt, D2/Dt and D3/Dt.
Heinz Fortak
doaj +1 more source
The manufacturer of an ultrasonic cleaning tank (UCT) received advise from a customer to seek the cause to why the UCT could not clean their products effectively and develop a novel UCT to replace the conventional model.
W. Tangsopa, J. Thongsri
semanticscholar +1 more source
On the dynamics of radiative zones in rotating stars [PDF]
In this lecture I try to explain the basic dynamical processes at work in a radiative zone of a rotating star. In particular, the notion of baroclinicity is thoroughly discussed.
Rieutord, M.
core +2 more sources
In order to anticipate station blackout, the use of safety system based on passive features is highly considered in advanced nuclear power plant designs, especially after the Fukushima Dai-ichi nuclear power station accident.
A.R. Antariksawan+7 more
doaj +1 more source