Results 21 to 30 of about 9,153 (265)

Characterization of Supersonic Compressible Fluid Flow Using High-Speed Interferometry

Sensors, 2021
This paper presents a very effective interference technique for the sensing and researching of compressible fluid flow in a wind tunnel facility. The developed technique is very sensitive and accurate, yet easy to use under conditions typical for ...
Pavel Psota, Gramoz Çubreli, Jindřich Hála, David Šimurda, Petr Šidlof, Jan Kredba, Marek Stašík, Vít Lédl, Michal Jiránek, Martin Luxa, Jan Lepicovsky   +10 more
doaj   +1 more source

Supersonic Ejector with a Tangential Supersonic Nozzle

NTU "KhPI" Bulletin: Power and heat engineering processes and equipment
The flow rate and impulse characteristics of supersonic ejectors, where supersonic and subsonic streams typically interact, are determined not only by the interaction area between the supersonic jet and the entrained flow, but also by the pressure field in the ejector mixing chamber.
Gennadii Voropaiev, Nazariy Kolodii
openaire   +3 more sources

Study on Flow Characteristic of Sub-/Super-Sonic Mixing Layer

Xibei Gongye Daxue Xuebao, 2020
In order to obtain the flow characteristics of sub-super-sonic mixing layer including velocity distribution, pressure distribution and development of mixing layer, experimental and numerical investigations were conducted.

doaj   +1 more source

Screen-Printed PVDF Piezoelectric Pressure Transducer for Unsteadiness Study of Oblique Shock Wave Boundary Layer Interaction

Micromachines
Shock wave boundary/layer interactions (SWBLIs) are critical in high-speed aerodynamic flows, particularly within supersonic regimes, where unsteady dynamics can induce structural fatigue and degrade vehicle performance.
Bei Wang, Cosimo Corsi, Thomas Weiland, Zhenyu Wang, Thomas Grund, Olaf Pohl, Johannes Max Bienia, Julien Weiss, Ha Duong Ngo   +8 more
doaj   +1 more source

A Unified Asymptotic Theory of Supersonic, Transonic, and Hypersonic Far Fields

Axioms, 2022
The problems of steady, inviscid, isentropic, irrotational supersonic plane flow passing a body with a small thickness ratio was solved by the linearized theory, which is a first approximation at and near the surface but fails at far fields from the body.
Lung-Jieh Yang, Chao-Kang Feng
doaj   +1 more source

Effect of Quasi-Static Door Operation on Shear Layer Bifurcations in Supersonic Cavities

Aerospace
Span-wise homogeneous supersonic cavity flows display complicated structures due to shear layer breakdown, flow acoustic resonance, and even non-linear hydrodynamic-acoustic interactions. In practical applications, such as aircraft bays, the cavity is of
Skyler Baugher, Datta Gaitonde, Bryce Outten, Rajan Kumar, Rachelle Speth, Scott Sherer   +5 more
doaj   +1 more source

Implicit Subgrid-Scale Modeling of a Mach 2.5 Spatially Developing Turbulent Boundary Layer

Entropy, 2022
We employ numerically implicit subgrid-scale modeling provided by the well-known streamlined upwind/Petrov–Galerkin stabilization for the finite element discretization of advection–diffusion problems in a Large Eddy Simulation (LES) approach. Whereas its
Guillermo Araya, Christian Lagares
doaj   +1 more source

Computational Fluid Dynamics and Adjoint-Based Optimization of a Supersonic Combustor for Improved Efficiency

Fluids
Adjoint-based optimization methods, that were previously in the realm of computational fluid dynamics (CFD) research, are now available in commercial software.
Carola Rovira Sala, Nazanin Jalaei Poustian, Jimmy-John O. E. Hoste, Tamás István Józsa   +3 more
doaj   +1 more source

Investigations for Supersonic Transports at Transonic and Supersonic Conditions [PDF]

Journal of Aircraft, 2008
Several computational studies were conducted as part of NASA s High Speed Research Program. Results of turbulence model comparisons from two studies on supersonic transport configurations performed during the NASA High-Speed Research program are given. The effects of grid topology and the representation of the actual wind tunnel model geometry are also
S. Melissa B. Rivers, Lewis R. Owens, Richard A. Wahls   +2 more
openaire   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source