Results 1 to 10 of about 303 (67)

PIV Measurement and Proper Orthogonal Decomposition Analysis of Annular Gap Flow of a Hydraulic Machine

open access: yesMachines, 2022
The fluid stress or flow-induced vibration of annular gap flow always has some influence on the stable working conditions of a hydraulic machine. A time-averaged analysis of flow may not have to explicitly acknowledge these factors. Accordingly, a finite-
Yiming Zhao, Yongye Li, Xiaoteng Song
doaj   +3 more sources

Pronounced softening of a Zr-based metallic glass in micro annular gap flow

open access: yesMaterials Research Letters, 2022
While shear softening is widely acknowledged inflow of metallic glasses (MGs), the underlying structural origin remains obscure. Here a Zr35Ti30Be26.75Cu8.25 MG was squeezed into annular gaps of an exterior diameter of 300 µm and widths of 5∼150 µm by ...
Zu Li   +4 more
doaj   +2 more sources

FLAME PROPAGATION IN A NARROW GAP BETWEEN THE PISTON AND CYLINDER OF A HYDROGEN ENGINE [PDF]

open access: yesTransport Problems, 2023
The processes of flame penetration and propagation in a narrow annular gap between the piston and cylinder of a hydrogen piston engine are investigated by the method of 3D mathematical modeling.
Revaz KAVTARADZE   +5 more
doaj   +1 more source

Effect of Guide Strip Length on Annular Gap Flow Field during Pipe Vehicle Movement

open access: yesTaiyuan Ligong Daxue xuebao, 2022
In order to explore the effect of different guide strip lengths on the annular gap flow field and transport speed of pipe vehicle, the transport speed and annular gap flow field of pipe vehicle with guide strip lengths of 0, 35, 75, 112.5, and 150 mm ...
Xiaomeng JIA, Xihuan SUN, Yongye LI
doaj   +1 more source

Key factors affecting the thermal performance of annular fuel elements in LFR

open access: yesHe jishu, 2021
BackgroundThe key factors affecting the thermal performance of the lead-cooled fast reactor (LFR) annular fuel are very important to improve the core power density of LFR.PurposeThis study aims to analyze those key factors and provide guidance for ...
WANG Yuxuan   +5 more
doaj   +1 more source

Investigation on radial fuel relocation and its influence on heat split phenomenon of dual-cooled annular fuel element

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2022
Radial fuel relocation due to fuel fragmentation can significantly change the heat split, further affecting the thermal performance and safety of dual-cooled annular fuels.
Yangbin Deng, Zijian Xu, Yuan Yin
doaj   +1 more source

Thermal-hydraulic performance evaluation of annular fuel based on modified FROBA-ANNULAR

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2021
In this study, based on the modification of the pellet cladding mechanical interaction, gap closure process, and the cladding water corrosion model, Fuel Rod Behavior Analysis-ANNULAR (FROBA-ANNULAR) was uprated.
Chenxi Li   +5 more
doaj   +1 more source

Optimal pipeline position of annular freezing reinforcement during the replacement of shield tail brush

open access: yesYou-qi chuyun, 2022
How to prevent and control the leakage at shield tail during the replacement of shield tail brush is critical for shield tunnel construction. Herein, an annular freezing reinforcement method during the replacement of shield tail brush was proposed, and ...
Zhixin WANG   +3 more
doaj   +1 more source

Development of equipment for welding pipes made of fluoroplast-4D [PDF]

open access: yesОмский научный вестник, 2018
The description of the installation developed for overlap welding of tube shells of fluoroplast-4D used in the equipment of chemical and petrochemical industries is presented.
V. A. Sokolov   +2 more
doaj   +1 more source

Analytical Calculation of Annular Gap Throttling of Damping Valve [PDF]

open access: yesMATEC Web of Conferences, 2020
For the throttling characteristics of the suspension system damping valve, an analytical method for gap throttling based on turbulent flow state was proposed for the first time. The boundary layer theory was used to give the expression of the three-layer
Chen Yijie   +4 more
doaj   +1 more source

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