Results 21 to 30 of about 35,333 (231)

Effect of tip vortices on flow over NACA4412 aerofoil with different aspect ratios

EPJ Web of Conferences, 2016
Effect of tip vortices on flow and laminar separation bubble over NACA4412 aerofoil at low Reynolds numbers and different angles of attack was investigated in detail by performing force and flow visualization via smoke wire technique.
Genç Mustafa Serdar, Özkan Gökhan, Açikel Halil Hakan, Kiriş Mehmet Sadık, Yildiz Rahime   +4 more
doaj   +1 more source

Theoretical Study of the Effect of Instrument Parameters on the Flow Field of Air-Flow Impacting Based Mechanochemical Synthesis

International Journal of Chemical Engineering, 2018
The air-flow impacting based mechanochemical synthesis is an alternative strategy to traditional mechanochemical preparations, which has many advantages in terms of reaction temperature, preparation speed, and cleanness.
Yang Tao, Jun Lin, Zhao Zhang, Qiuting Guo, Jin Zuo, Bo Lu   +5 more
doaj   +1 more source

Optimization of positional parameters of close-formation flight for blended-wing-body configuration

Heliyon, 2018
In the present study, we study formation flight with two flying wing configurations. A low speed wind tunnel test is conducted to validate the accuracy of the Computational Fluid Dynamics (CFD).
Tao Yang, Liu Zhiyong, Xiong Neng, Sun Yan, Lin Jun   +4 more
doaj   +1 more source

Analysis of Flow Field Structure Characteristics of Dual Impinging Jets at Different Velocities

Aerospace
The flow structure and unsteady evolution characteristics of dual impinging jets represent a flow problem of significant engineering importance in the aerospace field.
Yifan Zhao, Yuxiang Liang, Xunnian Wang, Pengfei Yan, Jiaxi Zhao, Rongping Zhang   +5 more
doaj   +1 more source

Design Optimization of a Multi-Megawatt Wind Turbine Blade with the NPU-MWA Airfoil Family

Energies, 2019
A new airfoil family, called NPU-MWA (Northwestern Polytechnical University Multi-megawatt Wind-turbine A-series) airfoils, was designed to improve both aerodynamic and structural performance, with the outboard airfoils being designed at high design lift
Jianhua Xu, Zhonghua Han, Xiaochao Yan, Wenping Song   +3 more
doaj   +1 more source

Flow characteristics over NACA4412 airfoil at low Reynolds number

EPJ Web of Conferences, 2016
In this study, the flow phenomena over NACA4412 were experimentally observed at various angle of attack and Reynolds number of 25000, 50000 and 75000, respectively.
Genç Mustafa Serdar, Koca Kemal, Açıkel Halil Hakan, Özkan Gökhan, Kırış Mehmet Sadık, Yıldız Rahime   +5 more
doaj   +1 more source

Linearization and Analytical Sensitivity of Unsteady Vortex-Lattice Aerodynamics

气体物理, 2023
The unsteady vortex-lattice method (UVLM) provides a high-efficient, medium-fidelity way to capture large deformations and free wake effects of flexible wings. It has been favored in research on the stability analysis of flexible wings. It is possible to
Jin-chi CHEN, Yan-xin HUANG
doaj   +1 more source

Method for Identifying Heat Flux of Temperature-Sensitive Paint under High-Temperature Gas Radiation

气体物理
In order to solve the problem of heat flux identification of temperature-sensitive paints under the interference condition of high-temperature gas radiation luminescence, based on the gradient change of radiation light intensity of the coating, a heat ...
Guangsen JIA, Xin JIN, Dapeng YAO, Nong CHEN   +3 more
doaj   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij, Catia Olianti, Herve Brisse, Pier Luigi Di Paolo, Maria Garganese, Tejas Kapadia, Jurgen Schaefer, Hugh Wallace, Simon Wan, Bart de Keizer, Irmina Sefic Pasic, Julian Rogasch   +11 more
wiley   +1 more source