Results 1 to 10 of about 2,404,496 (308)

Simulation of Accelerated Subcritical Flow Profiles in an Open Channel with Emergent Rigid Vegetation

open access: yesApplied Sciences, 2022
Even though both fluid mechanics and numerical studies have considerably progressed in the past decades, experimental knowledge remains an important tool for studying the resistance to flow in fluid media where a complex environment dominates the flow ...
Antonino D’Ippolito   +4 more
doaj   +1 more source

Model of Flow Resistance Coefficient for a Fragment of a Porous Material Deposit with Skeletal Structure

open access: yesEnergies, 2021
The hydrodynamic conditions resulting from the permeability of porous materials are based not only on the assessment of the gas flow through these materials, but also the losses related to the pressure energy in this flow.
Grzegorz Wałowski
doaj   +1 more source

Cell membranes resist flow [PDF]

open access: yesCell, 2018
SUMMARYThe fluid-mosaic model posits a liquid-like plasma membrane, which can flow in response to tension gradients. It is widely assumed that membrane flow transmits local changes in membrane tension across the cell in milliseconds. This conjectured signaling mechanism has been invoked to explain how cells coordinate changes in shape, motility, and ...
Shi, Zheng   +4 more
openaire   +2 more sources

Field Investigation of Flow Resistance Due to Vegetation Patch (Case Study: Shapur, Fahlian and Dalaki Rivers) [PDF]

open access: yesمحیط زیست و مهندسی آب, 2023
Flow resistance in rivers with vegetation patches is one of the challenging parameters in river engineering. This study aimed to investigate the effect of vegetation patches on flow resistance in Shapur, Fahlian, and Dalaki rivers.
Masoud Naderi   +2 more
doaj   +1 more source

Applicability of Flow Resistance Formulae for Sand-Bed Channels: An Assessment Using a Very Large Data Set

open access: yesFrontiers in Environmental Science, 2022
Among numerous flow resistance formulae for sand-bed channels, this study selected five for evaluation and in order to cover flow conditions in sand-bed river channels as widely as possible, a total of 1,636 sets of field measures were collected from the
Hao Peng   +5 more
doaj   +1 more source

Flow resistance at lowland and mountainous rivers

open access: yesJournal of Hydrology and Hydromechanics, 2023
This study initially examines the various sources of flow resistance in sand-bed (lowland) and gravel-bed (mountainous) rivers along with the limitations of traditional estimation methods.
Okhravi Saeid   +4 more
doaj   +1 more source

Calculation of heat resistance of external enclosing structures with heat-conducting inclusions

open access: yesMagazine of Civil Engineering, 2022
The paper is devoted to the development of a method for calculating the thermal stability of external enclosing structures with heat-conducting inclusions.
Belous Alexey   +3 more
doaj   +1 more source

Characterization of Fluid Flow and Heat Transfer of Expanded Metal Meshes for Catalytic Processes

open access: yesEnergies, 2022
In this work, three raised expanded metal meshes (EMMs) differing in mesh size were tested experimentally with regard to their flow and transport properties. Empirical equations for the Nusselt number and Fanning friction factor were developed. Alongside
Marzena Iwaniszyn   +7 more
doaj   +1 more source

Study on the Influencing Factors of the Atomization Rate in a Piezoceramic Vibrating Mesh Atomizer

open access: yesApplied Sciences, 2020
On the basis of previous study in our research group, the phenomenon of the dynamic tapered angle was founded, the occurrence of atomization is regarded to derive from the combined effects of the dynamic variation of the micro-tapered aperture, and the ...
Qiufeng Yan, Wanting Sun, Jianhui Zhang
doaj   +1 more source

Development of a test setup for hydrodynamic characterization of hydrocephalus shunts

open access: yesCurrent Directions in Biomedical Engineering, 2023
Implantation of a shunt system is the most common neurosurgical procedure for the treatment of hydrocephalus. Hydrodynamic parameters of hydrocephalus shunt systems are valuable variables to address patients' needs.
Stiehm Michael   +6 more
doaj   +1 more source

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