Results 61 to 70 of about 763,082 (323)

Various Methods of Encapsulation Biomaterials in Self‐Healing Concrete: A Review

Engineering Reports, Volume 7, Issue 9, September 2025.
Investigation of the different methods of encapsulation of healing materials. ABSTRACT Concrete is known for its inherent vulnerability to cracking, which can be attributed to factors like temperature fluctuations, changes in moisture levels, and cyclic loading.
Mostafa Adresi, Mehdi Khoshoo
wiley   +1 more source

Smoke Diffusion Characteristics for Smoke Generator Based on Turbojet

Nanjing Hangkong Hangtian Daxue Xuebao
Based on the discrete phase model in the simulation software FLUENT， the smoke diffusion characteristics under high-speed jet action of a smoke generator powered by a turbojet engine are calculated.
CAO Guangzhou, REN Rui, SUN Hongliang
doaj   +1 more source

MHD Flow Dynamics of Brinkman‐Type EO‐Based MoS2 Nanofluid Over a Rotatory Disk: Numerical Insights Into Cross‐Diffusion, Hall Current, and Reactive Transport

Engineering Reports, Volume 7, Issue 9, September 2025.
This study models MHD flow of Brinkman‐type EO‐based MoS2 nanofluid over a rotatory disk with Hall current, cross‐diffusion, and reactive transport. Numerical results reveal the effects of key parameters on flow, heat, and mass transfer in porous rotating systems.
B. Prabhakar Reddy, Jumanne Mng'ang'a, J. Manoj Kumar, M. Paul Matao   +3 more
wiley   +1 more source

Numerical Analyses of Surge Process in a Small-Scale Turbojet Engine by Three-Dimensional Full-Engine Simulation

Aerospace
Surge is a typical aerodynamic instability phenomenon in the compressors of aeroengines. The surge can lead to severe performance degradation and even structural damage to the engine and the air vehicle, making it a longstanding critical concern in the ...
Mengyang Wen, Heli Yang, Xuedong Zheng, Weihan Kong, Zechen Ding, Rusheng Li, Lei Jin, Baotong Wang, Xinqian Zheng   +8 more
doaj   +1 more source

Gas turbine exhaust nozzle [PDF]

, 1973
An elongated hollow string is disposed in an exhaust nozzle combustion chamber and communicates with an air source through hollow struts at one end. The other end of the string is bell-mouth shaped and extends over the front portion of a nozzle plug. The
Straight, D. M.
core   +1 more source

Advancing Intermediate Soil Properties (ISP) Interpolation for Enhanced Geotechnical Survey Accuracy. A Review

Engineering Reports, Volume 7, Issue 8, August 2025.
Enhancing geotechnical survey accuracy: Integrating intermediate soil properties (ISP) interpolation with multidimensional raster data (MRD) for comprehensive subsurface characterization and improved project efficiency. ABSTRACT Accurate subsurface characterization is essential in geotechnical surveys, yet traditional soil sampling techniques often ...
Aliya Aldungarova, Yelbek Utepov, Assel Mukhamejanova, Assel Tulebekova, Aida Nazarova, Akmaral Tleubayeva, Indira Makasheva, Gulnaz Zhakapbayeva, Bekbolat Makhiyev, Timoth Mkilima   +9 more
wiley   +1 more source

Orbiter/launch system [PDF]

, 1981
The system includes reusable turbojet propelled booster vehicles releasably connected to a reusable rocket powered orbit vehicle. The coupled orbiter-booster combination takes off horizontally and ascends to staging altitude and speed under booster power
Jackson, L. R., Martin, J. A., Small, W. J., Weidner, J. P.   +3 more
core   +1 more source

Risk Analysis Under Uncertainty, Subjectivity, and Incomplete Knowledge: With a Use Case of Energy System Failures

Engineering Reports, Volume 7, Issue 7, July 2025.
FR‐FMEA combines fuzzy logic and rough set theory to address uncertainty and incomplete knowledge in failure analysis. Applied to a gas turbine system, it delivers more reliable and distinct risk rankings, identifying critical components for targeted maintenance and improved reliability.
Ali Aghazadeh Ardebili, Mahdad Pourmadadkar, Elio Padoano   +2 more
wiley   +1 more source

Ramjet Compression System for a Hypersonic Air Transportation Vehicle Combined Cycle Engine

Energies, 2018
This report assesses the performance characteristics of a ramjet compression system in the application of a hypersonic vehicle. The vehicle is required to be self-powered and perform a complete flight profile using a combination of turbojet, ramjet and ...
Sasha Veeran, Apostolos Pesyridis, Lionel Ganippa   +2 more
doaj   +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

Heat 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, Zakaria Mansouri, Salaheddine Azzouz   +2 more
wiley   +1 more source