Results 31 to 40 of about 34,356 (208)

NUMERICAL STUDIES OF INTERNAL FLOW IN DIFFERENT TYPES OF FILTERS

TASK Quarterly, 2020
The quality of ambient air attracts considerable, widespread interest. Over the last decades, air purification has become an integral part of HVAC systems, process engineering, automotive and respiratory protection.
MAGDALENA STANIK, SZYMON CABAN, MARLENA KLONECKA, MATEUSZ BUCZAK, PIOTR WIŚNIEWSKI   +4 more
doaj   +1 more source

Impact of Leakage Inlet Swirl Angle in a Rotor–Stator Cavity on Flow Pattern, Radial Pressure Distribution and Frictional Torque in a Wide Circumferential Reynolds Number Range

International Journal of Turbomachinery, Propulsion and Power, 2020
In the side-chambers of radial turbomachinery, which are rotor–stator cavities, complex flow patterns develop that contribute substantially to axial thrust on the shaft and frictional torque on the rotor.
Tilman Raphael Schröder, Hans-Josef Dohmen, Dieter Brillert, Friedrich-Karl Benra   +3 more
doaj   +1 more source

Transition models for turbomachinery boundary layer flows : a review [PDF]

, 2017
Current models for transition in turbomachinery boundary layer flows are reviewed. The basic physical mechanisms of transition processes and the way these processes are expressed by model ingredients are discussed.
Dick, Erik, Kubacki, Slawomir
core   +2 more sources

Study on Humid Air Turbine Cooling Technique

发电技术, 2021
In order to study the influence of humid air on the cooling performance of turbine blade and build the cooling performance prediction model of humid air turbine, the experimental platform of normal pressure turbine blade cooling was established, and the ...
Hua ZHU, Biao YAN, Yusong LIU, Liang LI
doaj   +1 more source

Numerical simulation methodologies for design and development of Diffuser-Augmented Wind Turbines – analysis and comparison

Open Engineering, 2016
Different numerical computation methods used to develop a methodology for fast, efficient, reliable design and comparison of Diffuser-Augmented Wind Turbine (DAWT) geometries are presented.
Lipian Michał, Karczewski Maciej, Molinski Jakub, Jozwik Krzysztof   +3 more
doaj   +1 more source

Design and Numerical Analysis of Recuperator for a Liquid Carbon Dioxide Energy Storage System

Applied Sciences, 2023
A liquid carbon dioxide energy storage (LCES) system has the characteristic of compact structure and easy liquefaction. As a component of heat recovery in the LCES system, the recuperator plays a crucial role in influencing the round trip efficiency (RTE)
Zhao Liu, Min Wang, Yu Song, Mengjuan Xu
doaj   +1 more source

Aerodynamic and Aeroelastic Effects of Design-Based Geometry Variations on a Low-Pressure Compressor

International Journal of Turbomachinery, Propulsion and Power, 2020
In modern aircraft engines, the low-pressure compressor (LPC) is subjected to a flow characterized by strong wakes and secondary flows from the upstream fan. This concerns ultra-high bypass ratio (UHBR) turbofan engines, in particular.
Torben Eggers, Hye Rim Kim, Simon Bittner, Jens Friedrichs, Joerg R. Seume   +4 more
doaj   +1 more source

Model Predictive Evolutionary Temperature Control via Neural-Network-Based Digital Twins

Algorithms, 2023
In this study, we propose a population-based, data-driven intelligent controller that leverages neural-network-based digital twins for hypothesis testing.
Cihan Ates, Dogan Bicat, Radoslav Yankov, Joel Arweiler, Rainer Koch, Hans-Jörg Bauer   +5 more
doaj   +1 more source

Introduction of a Data‐Based Preliminary Compressor Design for Mechanical Vapor Compression

Chemie Ingenieur Technik, EarlyView.
This work proposes a data‐driven methodology for the design of compressors for mechanical vapor compression, with the objective of electrification of chemical processes utilizing renewable energy sources. This approach enables the determination of suitable compressor architectures and their performance parameters within the framework of a potential ...
Lars Hinz, Jan Goeing, Daniel Muth, Christian Herrmann, Jens Friedrichs   +4 more
wiley   +1 more source

Characterization of dynamic stall of a wind turbine airfoil with a high Reynolds number [PDF]

Wind Energy Science
This study shows an extensive analysis of dynamic stall on wind turbine airfoils, preparing for the development of a reduced-order model applicable to thick airfoils (t/c>0.21) in the future.
H. R. Kim, J. A. Printezis, J. D. Ahrens, J. R. Seume, L. Wein   +4 more
doaj   +2 more sources