Results 1 to 10 of about 82,701 (138)

An investigation of wall temperature characteristics to evaluate thermal fatigue at a T-junction pipe

open access: yesMechanical Engineering Journal, 2014
Thermal fatigue cracking may initiate at a T-junction pipe where high and low temperature fluids mix. In this study, wall temperature characteristics at a T-junction pipe were investigated to improve the evaluation method for thermal fatigue.
Koji MIYOSHI   +3 more
doaj   +4 more sources

Drag Reduction of T-junction Pipe Flow by Small Obstacles

open access: yesJournal of Fluid Science and Technology, 2011
Flows in the T-junction of a counter-flow pipe are run counter to each other and they usually flow out vertically together. A flow separated from the junction corner forms separated vortex regions and they reduce the effective cross-sectional areas of ...
Toshitake ANDO   +3 more
doaj   +4 more sources

Conjugate numerical simulation of wall temperature fluctuation at a T-junction pipe

open access: yesMechanical Engineering Journal, 2018
Thermal fatigue cracks may occur in a T-junction pipe due to the mixing of hot and cold fluids. To develop an evaluation method for thermal fatigue, the authors previously performed a mixing tee experiment called the T-Cubic experiment.
Yoichi UTANOHARA   +2 more
doaj   +4 more sources

Effects of flow rate ratio on loss reduction of T-junction pipe

open access: yesJournal of Fluid Science and Technology, 2014
T-junction pipes are frequently used in industrial facilities to split one flow into two flows or to merge two flows into one flow. In the counter-flow type of confluence in this type of pipe, separated vortex flow regions are formed near the junction ...
Toshitake ANDO   +3 more
doaj   +4 more sources

Numerical evaluation of wall temperature measurement method developed to estimate thermal stress at T-junction pipe

open access: yesMechanical Engineering Journal, 2014
Thermal fatigue cracking may initiate at a T-junction pipe where high and low temperature fluids flow in from different directions and mix. Thermal stress is caused by a temperature gradient in a structure and by its variation.
Koji MIYOSHI   +2 more
doaj   +4 more sources

Non-Isothermal Vortex Flow in the T-Junction Pipe

open access: yesEnergies, 2021
The numerical simulation approach of heat carrier mixing regimes in the T-junction shows that the RANS approach is beneficial for a qualitative flow analysis to obtain relatively agreed averaged velocity and temperature. Moreover, traditionally, the RANS
Tatyana A. Baranova   +4 more
doaj   +2 more sources

Multi-Gait In-Pipe Locomotion via Programmable Friction Reorientation [PDF]

open access: yesBiomimetics
In-pipe robots must navigate narrow, curved passages where rigid mechanisms often require bulky steering units. Soft crawlers offer better compliance but typically rely on multiple actuators or reconfigurable contacts to achieve multi-directional motion.
Jaehyun Lee, Jongwoo Kim
doaj   +2 more sources

Force Analysis of a Circular Cylinder at Ununiformed Flow in a T Pipe Junction

open access: yesEnergies, 2018
Experimental and numerical investigations of force analysis acted on single circular cylinder in the T pipe junction with the effect of vanes are reported in this paper. Experiments are carried on in a small wind tunnel at five different velocity ratios (
Yantao Yin   +4 more
doaj   +3 more sources

Geometric parameters optimization of low resistance T-junction with guide vanes in HVAC system [PDF]

open access: yesE3S Web of Conferences, 2022
In recent years, with the increasing energy consumption and carbon emissions, people are paying more and more attention to related measures for energy conservation and emission reduction.
Yin Yifei   +3 more
doaj   +1 more source

Numerical Simulation Analysis of Different Flow Directions in T-Junction [PDF]

open access: yesCailiao Baohu, 2021
During the process of using the pipe, the leakage of the pipe perforation was caused by the erosion and wear of the micro solid particles in the pipe medium.Thus, DPM erosion prediction model in Fluent software was used to conduct numerical simulation of
YAN Hong-wei, WANG Lu, PENG Fang-xian, LI Peng-cheng, YANG Xiong, HOU Xiang-rong
doaj   +1 more source

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