Results 61 to 70 of about 986,965 (260)

Regimes with periodical pressure pulsation in Francis draft tube

open access: yesMATEC Web of Conferences, 2017
The paper reports on results of the experimental study of flow and pressure pulsations in a laboratory model of the draft tube of Francis-99 hydro turbine over a broad range of operating regimes. A novelty is the rapid prototyping and 3-d printing of the
Litvinov Ivan   +2 more
doaj   +1 more source

Flow Field Analysis of Francis Turbine Draft Tube using POD at Design and Part Load Operating Conditions [PDF]

open access: yesJournal of Applied Fluid Mechanics
The hydraulic turbines, especially Francis turbines, frequently run at part load (PL) conditions to meet the dynamic energy needs. The flow field at the runner exit changes significantly with a change in the operating point.
S. Kumar, M. J. Cervantes, B. K. Gandhi
doaj   +1 more source

Youngstown Sheet and Tube Company's Campbell Works blast furnace

open access: yes, 1920
A view of Youngstown Sheet and Tube Company's blast furnaces at the Campbell Works, ca. 1920-1929. Founded in 1900, Youngstown Sheet and Tube established an integrated steel plant in East Youngstown, which would later become Campbell, Ohio.
Youngstown Sheet and Tube Company
core  

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

open access: yesFEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour   +2 more
wiley   +1 more source

CFD SIMULATION OF THE HYDRODYNAMICS AND MIXING TIME IN A STIRRED TANK [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2010
Hydrodynamics and mixing efficiency in stirred tanks influence power draw and are therefore important for the design of many industrial processes. In the present study, both experimental and simulation methods were employed to determine the flow fields ...
AOYI OCHIENG, MAURICE S. ONYANGO
doaj  

Vortex rope instabilities in a model of conical draft tube

open access: yesEPJ Web of Conferences, 2017
We report on experimental studies of the formation of vortex ropes in a laboratory simplified model of hydroturbine draft tube. Work is focused on the observation of various flow patterns at the different rotational speed of turbine runner at fixed flow ...
Skripkin Sergey   +3 more
doaj   +1 more source

Simulation analysis of internal flow field characteristics of high-speed centrifugal pump as a turbine [PDF]

open access: yesInternational Journal of Fluid Engineering
The pump as turbine (PAT), utilizing high-speed centrifugal pumps, boasts technical advantages such as low cost, compact structure, and broad flow adaptability.
Chong Zhou   +4 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

Steady and unsteady CFD simulations of the Turbine-99 Draft Tube using CFX-5 and STREAM [Elektronisk resurs]

open access: yes, 2005
The numerical prediction of the flow field in a hydraulic turbine draft tube is very challenging due to its complex flow properties and has already been studied in detail in two former ERCOFTAC Turbine-99 workshops.
Lundström, Staffan,   +5 more
core  

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