Results 21 to 30 of about 3,968 (289)
Energies, 2022 The rotation speed of water at the inlet of the low hump outlet conduit has a great effect on its hydraulic performance. Therefore, the influence of different inlet water rotation speeds on hydraulic loss and flow pattern of low hump outlet conduit is ...
Lei Xu +6 more
doaj +1 more source
Numerical Analysis of Resistance Characteristics of a Novel High-Speed Quadramaran
Polish Maritime Research, 2023 This paper utilised computational fluid dynamics (CFD) technology to calculate the resistance of a novel high-speed quadramaran in calm water using the Navier‒Stokes (N‒S) equation, analysed the total resistance, frictional resistance, and residual ...
Liu Xin +5 more
doaj +1 more source
Traffic of multi-car trains in marshalling yards [PDF]
E3S Web of Conferences, 2023 Developing rail transport is one of the world's greatest challenges. Rail transport reduces emissions and is the most energy efficient means of transport. An important element of the railways is a hump yard, where rolling stock is formed.
Kornienko Konstantin +4 more
doaj +1 more source
Updating the numerical characteristics of main resistance to wagon movement when rolling down a hump [PDF]
E3S Web of Conferences, 2023 The parameters for humps are designed by the results of the roll-down of wagons with the design running performance. The numerical characteristics of the main specific resistance forces to the movement of wagons currently used in hump design are given in
Klimov Alexander +3 more
doaj +1 more source
Analysis of the movement of an empty car on the longitudinal profile of the hill [PDF]
E3S Web of Conferences, 2023 At present, in the existing methods for determining the height of a hump, the height is calculated based on the most difficult conditions - winter temperature and head wind, and a four-axle empty covered wagon is selected for a poor runner.
Saidivaliev Shukhrat +2 more
doaj +1 more source
Energies, 2021 The RANS (Reynolds-averaged Navier–Stokes equations) with CFD (Computational Fluid Dynamics) simulation method is used to analyze the head hump formation mechanism in the double-suction centrifugal pump under a part load condition.
Yong Liu +5 more
doaj +1 more source
Traffic flow parameters development modelling at traffic calming measures located on arterial roads
Ain Shams Engineering Journal, 2021 Controlling the speed of vehicles is essential in some parts of the roadway. One way of controlling speed is to use static control devices i.e. traffic calming measures, which reduce the speeds of vehicles and thereby increase safety, while produce ...
Ayman A. Abdulmawjoud +2 more
doaj +1 more source
Humping Formation and Suppression in High-Speed Laser Welding
Materials, 2022 Increasing welding speed can promote the productivity of laser welding. However, humping defects often occur, which limits the application of this strategy. The existing explanations for the humping formation remain vague, and mitigation and suppression methods are limited.
Boce Xue +5 more
openaire +2 more sources
Speed Mechanism in the urban residential areas with the presence of speed hump [PDF]
, 2019 埼玉大学博士(学術)117 p.The primary and main function of a residential street is to provide spaces where the inhabitants’ can perform a variety of social activities and to provide a direct access to the adjacent buildings or facilities for pedestrian and ...
RAHMAN, MURSHEDA +1 more
openaire +2 more sources
Ain Shams Engineering Journal, 2021 The main aim of this paper is to evaluate the effects of installing speed-humps on the safety and mobility of the unconventional median U-turn, three-leg intersections, using the VISSIM microscopic traffic simulation model.
Usama Elrawy Shahdah, Abdelhalim Azam
doaj +1 more source