Results 171 to 180 of about 716,438 (286)

On the critical Reynolds number of the drag coefficient for a circular cylinder

On the critical Reynolds number of the drag coefficient for a circular cylinder
Drag coefficient of a circular cylinder in a uniform flow shows a steep fall when the Reynolds number increases from about 3.0 x 10(exp 5) to about 3.8 x 10(exp 5) in our experiments. At about Re = 3.6 x 10(exp 5), the drag coefficient curve is not continuous, but has a jump, and also a lift force actually acts on the cylinder.
openaire  

The critical Reynolds number of a laminar incompressible mixing layer from minimal composite theory

Journal of Fluid Mechanics, 2006
P. Bhattacharya, M. Manoharan, R. Govindarajan, R. Narasimha   +3 more
semanticscholar   +1 more source

Tobacco use perceptions and intentions to abstain among adolescents in the English-speaking Caribbean: A cross-sectional secondary analysis. [PDF]

Tob Prev Cessat
Chukwu RO, Hadi M, Reynolds AG, Jin Q, Malcolm SD.   +4 more
europepmc   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

The transonic safe mode as an enabler of next-generation wind turbines. [PDF]

Commun Eng
De Tavernier DAM, Zaaijer MB, von Terzi DA.   +2 more
europepmc   +1 more source

Modeling proppant transport and settling in a 3D propagating fracture

Deep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert, Aimé Fournier, Wencheng Jin   +2 more
wiley   +1 more source

Computational fluid dynamics-based flow field simulation and optimization of negative-pressure stone removal: stone size, position, and sheath geometry. [PDF]

Sci Rep
Tian C, Liu J, Di Q, Zhang B, Yang B, Xiong L, Liu J.   +6 more
europepmc   +1 more source

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

Deep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri, Stephen Talman, Erik Nickel, Rick Chalaturnyk   +3 more
wiley   +1 more source

Unravel the rotational and translational behavior of a single squirmer in flexible polymer solutions at different Reynolds numbers. [PDF]

Commun Phys
Qi K, Zhou Y, De Corato M, Stratford K, Pagonabarraga I.   +4 more
europepmc   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam, Sajjad Ali, Pir Muhammad Ismail, ABM Sharif Hossain   +3 more
wiley   +1 more source