Results 121 to 130 of about 34,613 (317)

Experimental Study on the Influence of Gas Injection on Aerodynamic Heating

气体物理
The gas injection effect is the main heat dissipation mechanism of ablative materials, which would significantly affect the thermal insulation characteristics of ablative thermal protection systems.
Hongjun ZHANG, Haiqun LI, Honglin KANG, Jinling LUO   +3 more
doaj   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Control of shock-induced boundary layer separation at supersonic speeds

, 2007
PhDThe results of a systematic experimental investigation into the effects that Sub- Boundary Layer Vortex Generators (SBVGs) have on reducing normal shock-induced turbulent boundary layer separation are presented.
Cohen, Giel S, Cohen, Giel S.
core  

A study of roughness in turbulent hypersonic boundary-layers [PDF]

, 1993
The influence of large scale regular roughness on a Mach 5 turbulent boundary layer and a compression corner was investigated on axisymmetric wind tunnel models.
Babinsky, Holger
core  

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Large eddy simulation of transonic turbulent flow over a bump

, 1998
Transonic turbulent boundary-layer flow over a circular-arc bump has been computed by high-resolution large-eddy simulation of the compressible Navier–Stokes equations.
Frans N. Van De Vosse, van Steenhoven, A.A., Oleksiy S. Galaktionov, Peters, G.W.M., Lawal, A.A., Sandham, N.D., Galaktionov, O.S., Schook, R Robert, Rindt, C.C.M., Anderson, P.D., Yao, Yufeng, Han E. H. Meijer, Schook, R., Patrick D. Anderson, Vosse, van de, F.N., Vosse, van de, F.N.; id_orcid, H.C. de Lange, A.A. van Steenhoven, Sillekens, J.J.M., Meijer, H.E.H., Steenhoven, van, A.A., Yao, Y.F., Sandham, N. D., Steenhoven, AA Anton van, Lange, de, H.C., Rindt, C.C.M.; id_orcid, Lawal, A. A., R. Schook, Gerrit W. M. Peters, Lange, HC Rick de, Anderson, P.D.; id_orcid   +30 more
core   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Analysis of Model Results for the Turning of the Wind and Related Momentum Fluxes in the Stable Boundary Layer

, 2009
The turning of wind with height and the related cross-isobaric (ageostrophic) flow in the thermally stable stratified boundary layer is analysed from a variety of model results acquired in the first Global Energy and Water Cycle Experiment (GEWEX ...
Svensson, G., Holtslag, A.A.M., Svensson, Gunilla,, Holtslag, Albert,   +3 more
core   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications

Shock and Vibration, 1995
Flow-induced structural noise of a sonar dome in which the sonar transducer is housed, constitutes a major source of self-noise above a certain speed of the vessel.
V. Bhujanga Rao
doaj   +1 more source