Results 131 to 140 of about 177,184 (308)

Application of a Reynolds stress turbulence model to the compressible shear layer [PDF]

open access: yes
Theoretically based turbulence models have had success in predicting many features of incompressible, free shear layers. However, attempts to extend these models to the high-speed, compressible shear layer have been less effective.
Balakrishnan, L., Sarkar, S.
core   +1 more source

Giving or Greening? Stakeholder Dynamics and Ex‐Military Executives

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Firms increasingly face competing demands from different stakeholder groups, yet little is known about how these demands interact and generate strategic trade‐offs. Drawing on stakeholder theory and upper echelons theory, we investigate whether an overemphasis on philanthropic initiatives can detract from investments in green innovation, and ...
Hyeyoun Park   +3 more
wiley   +1 more source

kL-based Linear and Nonlinear Two-Equation Turbulence Models [PDF]

open access: yes
The development and implementation of kL-based Reynolds Average Navier-Stokes (RANS) two-equation turbulence models are reported herein. The kL is based on Abdol-Hamid's closure and Menter's modification to Rotta's two-equation model.
Abdol-Hamid, K. S.
core   +1 more source

Fear of Failure as a Gendered Barrier to Building Sustainable Entrepreneurial Ecosystems

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Drawing on four well‐established theoretical perspectives, this paper proposes an intersectional, emotionally grounded framework for understanding how gender and age jointly shape entrepreneurial perceptions across psychological, social, and cultural domains.
Giusy Sica   +3 more
wiley   +1 more source

Uniform Gas Flow Distribution into Several Partial Flows under Consideration of Closable Outlets

open access: yesChemie Ingenieur Technik, EarlyView.
The uniform distribution of a gas flow into several partial flows poses a challenge in various technical fields. This study presents a static flow distributor design that ensures an equal distribution of an inlet gas flow regardless of the flow rate and the number of open outlets.
Nikolas Schmidt   +3 more
wiley   +1 more source

Correlation-Based Transition Transport Modeling for Simulating Crossflow Instabilities

open access: yesJournal of Applied Fluid Mechanics, 2016
A correlation-based transition model has been developed by Langtry and Menter for modern computational fluid dynamics codes, which is widely used for transition prediction in the field of turbomachinery and aircraft.
J. K. Xu   +3 more
doaj  

Improved two-equation k-omega turbulence models for aerodynamic flows [PDF]

open access: yes
Two new versions of the k-omega two-equation turbulence model will be presented. The new Baseline (BSL) model is designed to give results similar to those of the original k-omega model of Wilcox, but without its strong dependency on arbitrary freestream ...
Menter, Florian R.
core   +1 more source

3D‐Printed Coil Immobilized Enzyme Reactors for Laccase Biocatalysis in Single‐ and Two‐Phase Flow

open access: yesChemie Ingenieur Technik, EarlyView.
Development of 3D‐printed immobilized enzyme reactors functionalized with laccase for continuous‐flow biocatalysis. Surface coupling and reactor design enhanced stability and mass transfer, enabling efficient and reusable biocatalytic processes.
Alina J. Tauriainen   +4 more
wiley   +1 more source

Computation of turbulent boundary layer flows with an algebraic stress turbulence model [PDF]

open access: yes
An algebraic stress turbulence model is presented, characterized by the following: (1) the eddy viscosity expression is derived from the Reynolds stress turbulence model; (2) the turbulent kinetic energy dissipation rate equation is improved by including
Chen, Yen-Sen, Kim, Sang-Wook
core   +1 more source

The Filament Extension Atomization Process for Powder Production of Elastic Fluids

open access: yesChemie Ingenieur Technik, EarlyView.
Filament extension atomization is a promising technique for spraying a wide range of materials, enabling narrow droplet size distributions. This study examines the behavior of various fluids and suspensions to define application limits and identify optimal operating conditions.
Moritz Neukötter   +4 more
wiley   +1 more source

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