Results 61 to 70 of about 33,063 (224)

Modeling for Predicting and Optimizing MWCNT + SiO2 Hybrid Nanofillers in Basalt/Glass/Polymer Composites for Enhanced Mechanical and Morphological Properties Using Response Surface Methodology

open access: yesEngineering Reports, Volume 7, Issue 7, July 2025.
Effects of MWCNTs/SiO2 content, sonication time, molding temperature, and pressure on ILSS and Izod impact strength of glass‐basalt fiber laminates were studied. Optimization achieved 40.25 MPa ILSS and 201.47 kJ/m2 impact strength, confirmed by SEM analysis.
Varadhan Boobalan   +4 more
wiley   +1 more source

Evaluation of Sonic Boom Shock Wave Generation with CFD Methods

open access: yesAerospace
Over the past two decades, there has been a renewed interest in the development of a new generation of supersonic aircraft for civil purposes that could potentially succeed Concorde.
Samuele Graziani   +5 more
doaj   +1 more source

Supersonic cruise aircraft research: An annotated bibliography [PDF]

open access: yes
This bibliography, with abstracts, consists of 69 publications arranged in chronological order. The material may be useful to those interested in supersonic cruise fighter/penetrator/interceptor airplanes.
Tuttle, M. H.
core   +1 more source

Flat Plate Collector Thermal Performance Assessment Using Hybrid MWCNT/Fe3O4/Water Nanofluid for Efficiency Enhancement: An Experimental Study

open access: yesEngineering Reports, Volume 7, Issue 7, July 2025.
The thermal performance of flat plate collectors (FPCs) was enhanced using nanofluids. A hybrid MWCNT/Fe3O4/water nanofluid achieved 71.9% thermal efficiency, outperforming conventional fluids. Improved Nusselt number, friction factor, and convective heat transfer highlight its effectiveness in optimizing FPC systems. ABSTRACT The flat plate collector (
T. Sathish   +6 more
wiley   +1 more source

The YF-12 Gust Velocity Measuring System [PDF]

open access: yes
A true gust velocity measuring system designed to alleviate complications resulting from airframe flexibility and from the high-speed, high-temperature environment of supersonic cruise aircraft was evaluated on a YF-12 airplane.
Ehernberger, J.
core   +1 more source

Numerical Investigations of the Aerothermal Performance of Modern Turbine Blade Tip Geometries at Design and Off‐Design Conditions and Under Stationary and Moving Shroud

open access: yesHeat Transfer, Volume 54, Issue 5, Page 3193-3207, July 2025.
ABSTRACT High‐pressure turbine blade tips operate under extreme thermal stress, generating significant aerodynamic losses that must be continually optimized to improve engine efficiency and durability. This study uses computational fluid dynamics (CFD) to investigate the aerodynamic and thermal behavior of advanced turbine blade tip configurations ...
Kheir‐Eddine Arrif   +2 more
wiley   +1 more source

Design and analysis issues of integrated control systems for high-speed civil transports [PDF]

open access: yes
A study was conducted to identify, rank, and define development plans for the critical guidance and control design and analysis issues as related to economically viable and environmentally acceptable high-speed civil transport. The issues were identified
Dykman, John R.   +4 more
core   +1 more source

A Review of Modeling and Control Techniques for Unmanned Aerial Vehicles

open access: yesEngineering Reports, Volume 7, Issue 6, June 2025.
By systematically classifying UAV modeling techniques and comparing control methods, this paper addresses a notable gap in the current literature. Furthermore, it highlights emerging trends and challenges in UAV control systems, providing valuable insights to guide future research toward enhancing the stability, efficiency, and adaptability of ...
Elisabeth Andarge Gedefaw   +2 more
wiley   +1 more source

A review of NASA's propulsion programs for aviation [PDF]

open access: yes
A review of five NASA engine-oriented propulsion programs of major importance to civil aviation are presented and discussed. Included are programs directed at exploring propulsion system concepts for (1) energy conservation subsonic aircraft (improved ...
Johnson, H. W.   +2 more
core   +1 more source

Tradeoffs in jet inlet design: a historical perspective

open access: yes, 2007
The design of the inlet(s) is one of the most demanding tasks of the development process of any gas turbine-powered aircraft. This is mainly due to the multi-objective and multidisciplinary nature of the exercise.
Anderson B. H.   +46 more
core   +1 more source

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