Results 51 to 60 of about 5,519 (211)
Various Methods of Encapsulation Biomaterials in Self‐Healing Concrete: A Review
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
Friction and wear behavior of different seal materials under water-lubricated conditions
The shaft mechanical face seal in a high-speed turbopump of a liquid rocket engine often operates under extremely harsh conditions. For example, a low-temperature and low-viscosity fluid (such as liquid oxygen or liquid hydrogen) is used as a lubricant ...
Weigang Zhao +2 more
doaj +1 more source
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 +3 more
wiley +1 more source
Unsteady Flow in Cavitating Turbopumps [PDF]
Unsteady flow in a cavitating axial inducer pump is analyzed with the help of a simple two-dimensional cascade model. This problem was motivated by a desire to study the effect of unsteady cavitation on the so-called POGO instability in the operation of liquid rocket engines.
J. H. Kim, A. J. Acosta
openaire +1 more source
ABSTRACT This study establishes a full‐flow passage numerical model of an LNG submerged pump equipped with two‐stage splitter blades through three‐dimensional modeling. Numerical simulations validated by liquid nitrogen experiments demonstrate that at 1.4 times the design flow rate, the peak efficiency reaches 60.6%, with a maximum head of 194.93 m ...
Songyu Yao +4 more
wiley +1 more source
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 +9 more
wiley +1 more source
Research on Tightening Technique of Turbopump Shaft System Based on Elongation Method
As the key role of turbopumps in spacecraft engines becomes increasingly prominent, accurate control of their shaft system tightening force is significant to ensure the stable operation of the engines.
Zelin Wang +4 more
doaj +1 more source
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 +2 more
wiley +1 more source
Advanced Launch System propulsion focused technology liquid methane turbopump technical implementation plan [PDF]
This program will focus on the integration of all functional disciplines of the design, manufacturing, materials, fabrication and producibility to define and demonstrate a highly reliable, easily maintained, low cost liquid methane turbopump as a ...
Csomor, A., Nielson, C. E.
core +1 more source
Automation of Predictive Maintenance: An Experimental Framework for Aircraft Landing Gear
Modern aircraft generate vast flight data, yet limited domain expertise hinders widespread predictive maintenance model development. This study compares traditional and automated machine learning (AutoML) models for Airbus landing gear health monitoring, showing AutoML's potential to streamline workflow, improve accessibility, and enable non‐experts to
Izaak Stanton +3 more
wiley +1 more source

