Results 11 to 20 of about 20,145 (265)

Secondary flows in statistically unstable turbulent boundary layers with spanwise heterogeneous roughness

open access: yesTheoretical and Applied Mechanics Letters, 2022
Large-scale secondary motions are known to occur in turbulent flows over surfaces with spanwise roughness heterogeneity. Numerical studies often use adjacent high- and low-roughness longitudinal strips to investigate these secondary rolls in boundary ...
Ali Amarloo   +2 more
doaj   +1 more source

DOM stratification and characteristics versus thermal stratification – A case study in the Panjiakou Reservoir, China

open access: yesJournal of Hydrology: Regional Studies, 2022
Study region: Panjiakou Reservoir, Hebei province, China Study focus: Based on our multiple measurements of dissolved organic matter (DOM) and collected published papers, DOM itself stratification has been identified. Then, this stratification is adopted
Mengjiao Wei   +8 more
doaj   +1 more source

Investigating thermal stratification in a vertical hot water storage tank under multiple transient operations

open access: yesEnergy Reports, 2021
Hot water storage (HWS) tanks are one of the commonly employed sensible energy storage systems that store heat energy using water as the storage medium.
Kapil Kumar, Shobhana Singh
doaj   +1 more source

Numerical Simulation Study on the Layered Phenomenon of Lakes and Reservoirs Destroyed by a Forced Circulation Device

open access: yesJournal of Marine Science and Engineering, 2022
Thermal stratification is a common phenomenon in lakes and reservoirs. It has a significant influence on water quality dynamics. The destruction of the thermal stratification of lakes and reservoirs can affect the water environment, improve the water ...
Jiaxing Xu   +5 more
doaj   +1 more source

The Effect of Thermal Stratification on Unsteady Parabolic Flow past an Infinite Vertical Plate with Chemical Reaction

open access: yesEast European Journal of Physics, 2023
This research paper investigates the effects of thermal stratification on unsteady parabolic flow past an infinite vertical plate with chemical reaction.
Rupam Shankar Nath   +2 more
doaj   +1 more source

Suggestion for the Proper Treatment of Buoyancy Force Effect on Single Phase Thermal Stratification Phenomenon [PDF]

open access: yesE3S Web of Conferences, 2019
In the operating nuclear power plant, piping and components installed in the in-service testing (IST) systems connected to the reactor coolant system are potentially exposed to fatigue caused by thermal stratification flow, possibly threatening its ...
Lee Gong-Hee
doaj   +1 more source

Thermal Stratification in the Storage Tank

open access: yesProcedia Manufacturing, 2020
Abstract The paper presents the results of the numerical investigation of the thermal stratification occurring in the three-coil heat exchanger creating the hot water storage tank. The heat exchanger considered is a special type of coiled tube exchanger which can recover the waste heat from air conditioning system.
Joanna Wilk   +8 more
openaire   +1 more source

The Evaluation of Thermal Stratification by Exergy [PDF]

open access: yes, 1989
What makes a good heat store? Is it a large store, with a large volume? And is the largest the best? We experienced this question when the first solar houses were built: many stores were oversized and never reached temperatures high enough for heating.
Hahne, Erich   +2 more
openaire   +2 more sources

Hydrothermal plumes trapped by thermal stratification [PDF]

open access: yesGeophysical Research Letters, 2003
Hydrothermal plume penetration through density interfaces has been widely studied in laboratory experiments. It has been found that competition between plume buoyancy and background stratification (parameterised as the Richardson number) is crucial in determining whether or not the plume will penetrate through a density interface.
Jordi Colomer   +3 more
openaire   +1 more source

Research on the Thermal Stratification Phenomenon at the Secondary Side of a Steam Generator in an Isolated Loop

open access: yesEnergies, 2022
In normal operation, there is no significant thermal stratification phenomenon in the tube bundle area of the steam generator of the nuclear power plant.
Xinxin Liu   +3 more
doaj   +1 more source

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