Results 41 to 50 of about 2,042 (183)

Opportunities to Enhance sCO2 Power Cycle Turbomachinery with Bearingless Motor/Generators

Solar Compass
Thermal power cycles using sCO2 as a working fluid place extreme demands on their turbomachinery components and their electric motors/generators.
Takahiro Noguchi, WaiYan Chan, Nathan Petersen, Logan Rapp, Eric Severson   +4 more
doaj   +1 more source

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

Heat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source

Conditional Generative Adversarial Networks for modelling fuel sprays

Energy and AI, 2023
In this study, the probabilistic, data driven nature of the generative adversarial neural networks (GANs) was utilized to conduct virtual spray simulations for conditions relevant to aero engine combustors.
Cihan Ates, Farhad Karwan, Max Okraschevski, Rainer Koch, Hans-Jörg Bauer   +4 more
doaj   +1 more source

Comparison of a Miniaturized Implantable Two‐Stage Rotodynamic Blood Pump to Equivalent Single‐Stage Concepts

Artificial Organs, EarlyView.
This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier, Bente Thamsen, Stefan Maric, Bernhard Semlitsch, Benjamin Torner, Daniel Zimpfer, Marcus Granegger   +6 more
wiley   +1 more source

ASSESSMENT OF THE CAPABILITY OF AVAILABLE METHODS OF FLOW FIELD NUMERICAL MODELLING ON THE EXAMPLE OF AIR FLOW THROUGH A CHANNEL WITH A CIRCULAR BUMP

TASK Quarterly, 2017
This paper is an attempt at a systematic approach to the flow field analysis in the case of air flowing through a straight channel with a circular bump. The results of the authors’ own experimental measurements are compared to those obtained by means of
SŁAWOMIR DYKAS, MIROSŁAW MAJKUT, KRYSTIAN SMOŁKA, MICHAŁ STROZIK   +3 more
doaj   +1 more source

Shaping the Flow: Impact of Blade Shape on Performance and Hemocompatibility in Rotodynamic Blood Pumps

Artificial Organs, EarlyView.
Blade shapes (leading‐edge geometry and thickness) in rotodynamic blood pumps were systematically evaluated. Thinner blades improve pump efficiency by reducing blockage effects, while neither blade thickness nor leading‐edge geometry shows clear hemocompatibility benefits. Overall, blade shape has a limited impact on hemocompatibility, indicating it is
Benjamin Torner, Simon Klocker, Niccolò Crescenti, Aldo J. Suria, Harald Reithofer, Michael Hübler, Daniel Zimpfer, Marcus Granegger   +7 more
wiley   +1 more source

A Shock‐Tube Study of the HCl + M →$\to $ H + Cl + M (M = Ar) Rate Constant Using HCl Laser Absorption Near 3.3 µm

International Journal of Chemical Kinetics, Volume 58, Issue 7, Page 371-382, July 2026.
ABSTRACT Hydrogen chlorine (HCl) is an important combustion intermediate during plastic (municipal waste) and composite propellant (aerospace) combustion, but the understanding of its high‐temperature chemistry is still evolving. In this study, the pyrolysis of 0.5% HCl in Ar was investigated behind reflected shock waves in a shock tube at temperatures
Claire M. Grégoire, Olivier Mathieu, Eric L. Petersen   +2 more
wiley   +1 more source

Low Reynolds Number Flow in a Packed Bed of Rotated Bars

Chemical Engineering &Technology, Volume 49, Issue 6, June 2026.
Research Article: This study examines gas flow in a modular packed‐bed reactor with square bars arranged in rotated layers, creating complex void spaces. Using particle image velocimetry, measurements were taken at Reynolds numbers of 100 and 200. These results validated two particle‐resolved numerical simulations employing boundary‐conforming meshing ...
Wojciech Sadowski, Christin Velten, Maximilian Brömmer, Hakan Demir, Kerstin Hülz, Francesca di Mare, Katharina Zähringer, Viktor Scherer   +7 more
wiley   +1 more source

Improving Moist‐Electric Generator Stability and Performance by Enhancing Interfacial Activity With Crosslinked Aminated Carbon Dots

Carbon Neutralization, Volume 5, Issue 3, May 2026.
A high‐performance moisture‐enabled electricity generation (MEG) device with amino‐functionalized carbon dots on flexible fabric via thermal crosslinking is presented. The thermal crosslinking strategy enhances adhesion, removes inert groups, and suppresses carbon dots migration, boosting voltage (0.90 V vs. 0.56 V) and stability over 120 h.
Yi Li, Longtao Liu, Chen Tian, Yilun Tian, Bin Li, Chongye Xia, Mingyang Yang, Qijun Li, Jianning Ding, Jing Tan   +9 more
wiley   +1 more source

Numerical Investigation of Transonic Axial Compressor Rotor With Leading‐Edge Tubercles

Engineering Reports, Volume 8, Issue 3, March 2026.
Amplitude, wavelength, and span‐wise location of the leading‐edge tubercles on a transonic NASA Rotor 37 compressor are numerically optimized. An increase in efficiency by 0.52% compared to the corresponding baseline rotor is observed. The location of the shockwave moves downstream of the rotor with 1.91% higher pressure.
Muhammad Hamza, Tariq Talha, Shahid Aziz, Syed Osama Safdar Bukhari, Abdur Rehman Mazhar, Rehan Khan, Dong‐Won Jung   +6 more
wiley   +1 more source