Zobrazeno 1 - 10
of 35
pro vyhledávání: '"D. V. Chirkov"'
Autor:
D. V. Chirkov
Publikováno v:
Marine Medicine. 7:90-93
The results of the meeting of the leadership of the medical service of the Navy in the period from November 24 to November 26, 2021 are presented.
Autor:
D. V. Chirkov
Publikováno v:
Marine Medicine. 7:80-84
Autor:
A V Semenova, D V Chirkov, V A Skorospelov, A S Ustimenko, P A Turuk, V E Rigin, I A Germanova
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 1079:012028
The draft tube of the hydraulic turbine serves to recover the kinetic energy of the water flow that leaves the runner. The amount of this energy depends on the turbine type, its specific speed and flow capacity. For high specific speed turbines, infl
Publikováno v:
E3S Web of Conferences, Vol 320, p 04008 (2021)
In case of disconnection of generator from the network and failure of the governor, the rotational speed of the rotor rapidly increases and achieves maximum value, called the runaway speed. Prediction of the runaway speed at the stage of runner desig
Publikováno v:
Journal of Fluids Engineering. 142
One of the fundamental phenomena associated with the transport of rigid particles by the fluid flow in narrow ducts and tubes is the Segre–Silberberg effect. Experimental observations show that a spherical particle transported by the fluid flow in
Publikováno v:
Journal of Hydraulic Research. 57:623-634
Full load instability is one of the most dangerous unsteady flow phenomena, and practically restricts the zone of stable operation of the whole hydraulic power plant. This paper presents a ...
Publikováno v:
Structural and Multidisciplinary Optimization. 58:627-640
An approach for multi-discipline automatic optimization of the hydraulic turbine runner shape is presented. The approach accounts hydraulic efficiency, mechanical strength and the weight of the runner. In order to effectively control the strength and
Publikováno v:
Thermophysics and Aeromechanics. 24:691-703
At full and over load operating points, some Francis turbines experience strong self-excited pressure and power oscillations. These oscillations are occuring due to the hydrodynamic instability of the cavitating fluid flow. In many cases, the amplitu
Publikováno v:
Engineering Fracture Mechanics. 172:196-214
Using the well-known formula of Bažant for the prediction of structure nominal strength that depends on the structure characteristic size an expression for the local tensile strength is constructed and used in the maximal tensile stress criterion. T
Publikováno v:
Bulletin of Kalashnikov ISTU. 23:6
Цифровая высокоскоростная видеосъемка является одним из наиболее современных технических средств при исследовании быстропротекающих