Results 61 to 70 of about 66,420 (262)

Testing of a Stand for Analysis of Drilling Mud Friction Factor [PDF]

Acta Montanistica Slovaca, 2006
A concept and realization of a universal laboratory stand for analyzing hydromechanical effects accompanying the drilling mud flow are presented in the paper. Requirements for basic technical subassemblies of the stand are defined.
Stanisław Stryczek, Rafał Wiśniowski, Krzysztof Skrzypaszek   +2 more
doaj  

3D Simulation on turbulent flow and heat transfer behaviors in a five-start corrugated tube: Effect of depth ratio and tube modification

Engineering and Applied Science Research, 2021
This paper presents a 3D simulation of turbulent flow and heat transfer behaviors in a five-start corrugated tube having depth ratios, DR = 0.02-0.16 and constant pitch ratio, PR = 1.0 0 and the Reynold number ranging from 5000 to 20,000.
Narin Siriwan, Bopit Bubphachot, Smith Eiamsa-ard, Khwanchit Wongcharee, Teerapat Chompookham, Pitak Promthaisong   +5 more
doaj  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Friction factor evaluation in tidal rivers and estuaries. [PDF]

MethodsX, 2022
Panchenko E, Alabyan A.
europepmc   +1 more source

Wave Boundary Layers and Friction Factors

Coastal Engineering 1966, 1966
In the last two decades the problem of wave height damping due to bottom friction has received increasing attention among near-shore oceanographers. This fact is reflected in the wealth of papers on the subject; the list of references given herein presents a minor selection only.
openaire   +2 more sources

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Experimental Studies of Fluid Flow Resistance in a Heat Exchanger Based on the Triply Periodic Minimal Surface

Energies
This study describes experimental data on 3D-printed compact heat exchangers. The heat exchanger is a prototype designed and manufactured additively using 3D printing in metal—AISI 316L steel.
Marcin Kruzel, Krzysztof Dutkowski, Tadeusz Bohdal   +2 more
doaj   +1 more source

Estimation of heat transfer coefficient and friction factor with showering of aluminum nitride and alumina water based hybrid nanofluid in a tube with twisted tape insert. [PDF]

Sci Rep, 2023
Chammam W, Farooq U, Sediqmal M, Waqas H, Yasmin S, Zulfiqar F, Liu D, Khan SA.   +7 more
europepmc   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Thermofluids analysis of four novel anchor-shaped turbulator and eco-friendly nanofluid (GAGNPs /H2O) in a parabolic trough solar collector: A CFD modeling approach

International Journal of Thermofluids
In this paper, four new turbulator models are implemented inside the absorber tube of the Parabolic Trough Solar Collector (PTSC) in a linear arrangement (anchored shape) to regulate and standardize its surface temperature.
M. Gholinia, A.H. Ghobadi, E. Shahcheraghi, M. Armin   +3 more
doaj   +1 more source