Results 141 to 150 of about 194,559 (288)
Energy Reports, 2022 Particle Impact Drilling (PID) is a new technology to effectively improve the rate of penetration (ROP) for oil and gas drilling in hard and strongly abrasive formations.
Weidong Zhou +5 more
doaj
The secondary flow in a short aspect ratio circular lid driven cavity at small but finite Reynolds number [PDF]
arXiv, 2003 Regular perturbation solutions are obtained for the Stokes flow field, the first order effects of inertia on the flow field, and the primary and secondary pressure fields in the circular lid driven cavity. The physical mechanism that causes vortex breakdown exists at small Reynolds number; it is a stagnation of the secondary flow by an adverse pressure
arxiv
Heat Transfer, Volume 52, Issue 1, Page 395-429, January 2023., 2023 Abstract The significance of hybrid nanofluids in controlling heat transmission cannot be overemphasized. Therefore, this article scrutinizes the electromagnetized flow of Carreau hybrid nanofluid towards a stretching surface in a Darcy–Forchheimer porous medium with the occurrence of slip conditions.
M. P. Mkhatshwa, M. Khumalo
wiley +1 more source
Maximum two-phase flow rates of subcooled nitrogen through a sharp-edged orifice [PDF]
Data are presented of an experiment in which subcooled liquid nitrogen was discharged through a sharp-edged orifice at flow rates near the maximum.
Simoneau, R. J.
core +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT The novelty of this article lies in its focus on how mature ecosystems align their members around a new value proposition, specifically supporting circular economy entrepreneurship. We use dynamic capabilities theory to analyse the coordination and collaboration challenges in entrepreneurial ecosystems that seek to support entrepreneurship ...
Wisdom Kanda +4 more
wiley +1 more source
Systematic Literature Reviews: Reflections, Recommendations, and Robustness Check
Journal of Consumer Behaviour, EarlyView.ABSTRACT Systematic literature reviews are often conducted to consolidate, evaluate, and innovate an area in the body of knowledge. However, the exponential growth of these reviews has not only expanded the literature but also elevated expectations. What once sufficed now seems inadequate, necessitating a critical reflection.
Weng Marc Lim
wiley +1 more source
Measurements of the Reactivity of Premixed, Stagnation, Methane-Air Flames at Gas Turbine Relevant Pressures [PDF]
, 2018 Philippe Versailles +3 more
openalex +1 more source
Finite-Difference Implementation of Inviscid Separated Flows with Infinitely-Long Cusp-Ended Stagnation Zone around Circular Cylinder [PDF]
"Applications of Mathematics in Engeneering" 24, Heron Press,
Sofia, Bulgaria, 1999, pp. 188-195, 1998 The classical Helmholtz problem is applied for modelling and numerical investigation of inviscid cusp-ended separated flow around circular cylinder. Two coordinate systems are used: polar for initial calculations and parabolic as topologically most suited for infinite stagnation zone. Scaling by the shape of the unknown free line renders the problem to
arxiv
Pressure distributions from high Reynolds number transonic tests of an NACA 0012 airfoil in the Langley 0.3-meter transonic cryogenic tunnel [PDF]
Tests were conducted in the 2-D test section of the Langley 0.3-meter Transonic Cryogenic Tunnel on a NACA 0012 airfoil to obtain aerodynamic data as a part of the Advanced Technology Airfoil Test (ATAT) program.
Hill, Acquilla S. +2 more
core +1 more source