Results 11 to 20 of about 313,296 (283)

Optimization of heat extraction performance of gravity heat pipe under multiple working conditions

open access: yesMeikuang Anquan, 2022
The orthogonal experiment method was used to investigate the heat transfer performance of the gravity heat pipe under the influence of multiple factors such as types of working fluid, filling rate, and the aspect ratio.
MA Xin   +5 more
doaj   +1 more source

Experimental Study on the Evaporation and Condensation Heat Transfer Characteristics of a Vapor Chamber

open access: yesEnergies, 2018
A vapor chamber can meet the cooling requirements of high heat flux electronic equipment. In this paper, based on a proposed vapor chamber with a side window, a vapor chamber experimental system was designed to visually study its evaporation and ...
Yanfei Liu   +4 more
doaj   +1 more source

On the Effect of Filling Rate on Positive Macrosegregation Patterns in Large Size Cast Steel Ingots

open access: yesApplied Sciences, 2018
The effect of filling velocity on positive macrosegregation in large size steel ingots was studied. Macrosegregation and macro/microstructures were characterized on the hot-tops and a portion of the upper section of two ingots.
Chunping Zhang   +4 more
doaj   +1 more source

Casting technology with the formation of a uniform fine-grained metal structure [PDF]

open access: yesE3S Web of Conferences, 2023
The paper is devoted to the development of vacuum casting technology, which ensures the formation of a casting with a uniform fine-grained metal structure. This effect is achieved by the slow filling of the cooled cavity of the mold with a cooling liquid
Korolev Albert, Okhlupin Dmitry
doaj   +1 more source

A Numerical Investigation of Sloshing in a 3D Prismatic Tank with Various Baffle Types, Filling Rates, Input Amplitudes and Liquid Materials

open access: yesApplied Sciences, 2023
Partially filled liquid-carrying tanks have been used in many engineering applications, such as ships, vehicle fuel tanks, rockets, and drink or petroleum tankers. Liquid sloshing is an exciting phenomenon that researchers are investigating because of its complex behavior specifications.
Elif Erzan Topçu, Eyüp Kılıç
openaire   +3 more sources

Magneto-optical evidence of the percolation nature of the metal-insulator transition in the 2D electron system [PDF]

open access: yes, 1996
We compare the results of the transport and time-resolved magneto-luminescence measurements in disordered 2D electron systems in GaAs-AlGaAs heterostructures in the extreme quantum limit, in particular, in the vicinity of the metal-insulator transition ...
A. Karlhede   +22 more
core   +2 more sources

The study of gas-liquid flow dynamics in the inclined-corrugated elements of cooling tower filler unit [PDF]

open access: yesE3S Web of Conferences, 2019
This paper deals with the studies of cooling tower, operated with the contactless evaporative cooling technology. The authors developed the cooling tower with a three-flow liquid cooling system.
Madyshev lnur N.   +2 more
doaj   +1 more source

Visualization experiment study on oscillatory flow characteristics of two-phase flow [PDF]

open access: yesJournal of Hebei University of Science and Technology
In order to solve the oscillatory heat transfer problem of gas-liquid two-phase flow of cooling oil gallery of piston, a reciprocating oscillatory experimental device reformed by diesel engine was designed and established. The oscillatory flow process of
Hairong ZHU   +4 more
doaj   +1 more source

LPBF-Formed 2024Al Alloys: Process, Microstructure, Properties, and Thermal Cracking Behavior

open access: yesMetals, 2023
2024Al is an Al-Cu-Mg series heat-treatable aluminum alloy with high strength and excellent damage resistance. To obtain a high-performance target component of LPBF-formed 2024Al, the effect of process parameters on density, microstructure, and ...
Sen Yao   +6 more
doaj   +1 more source

Laboratory experiments and models of diffusive emplacement of ground ice on Mars [PDF]

open access: yes, 2009
Experiments demonstrate for the first time the deposition of subsurface ice directly from atmospheric water vapor under Mars surface conditions. Deposition occurs at pressures below the triple point of water and therefore in the absence of a bulk liquid ...
Aharonson, Oded   +2 more
core   +1 more source

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