Results 111 to 120 of about 14,718 (261)
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study develops eco‐friendly two‐dimensional nanoparticle‐enhanced phase change materials (2D NePCMs) using biodegradable beeswax infused with rGO, GO, and MXene nanoparticles. Experimental results demonstrated up to 21.9% enhancement in thermal conductivity with minimal latent heat loss, while machine learning models achieved >95% predictive ...
Abdullah Aziz +3 more
wiley +1 more source
Electronic MaterialsThe rapid development of electronic devices has led to increasing requirements for higher-performance thermal interface materials (TIMs). Based on the finite element method, this study investigates the heat transfer enhancement mechanism of polymer-based
Hongjie Luo +5 more
doaj +1 more source
Numerical solution of the Navier-Stokes equations for arbitrary 2-dimensional multi-element airfoils [PDF]
Numerical solutions of the Navier-Stokes equations, with an algebraic turbulence model, for time-dependent two dimensional flow about multi-element airfoils were developed.
Thompson, J. F.
core +1 more source
Energy Science &Engineering, EarlyView.This figure shows the variation of the total heat transfer coefficient of a shell and tube heat exchanger with different concentrations of water‐based MgO nanofluids at different inlet flow rates. The results indicate that the total heat transfer coefficient increases with increasing flow velocity, and at different volume fraction settings, the ...
Li Zhang +4 more
wiley +1 more source
A flight experiment to determine GPS photochemical contamination accumulation rates [PDF]
It was recently suggested that photochemically deposited contamination, originating from volatiles outgassed by a spacecraft, may be responsible for the anomalous degradation in power seen on the GPS Block 1 vehicles.
Haffner, J. W., Tribble, A. C.
core +1 more source
Energy Science &Engineering, EarlyView.A novel cascade nanofluid‐based PV/T–TEG hybrid system (CS4) achieves 81.1% thermal and 18.75% exergy efficiency while cutting CO₂ emissions by 7.8 tons year⁻¹. The system delivers superior energy performance, economic savings, and environmental benefits, offering a sustainable pathway for next‐generation solar energy applications.
Abdelhak Lekbir +4 more
wiley +1 more source
Boundary Layer Stability and Laminar-Turbulent Transition Analysis with Thermochemical Nonequilibrium Applied to Martian Atmospheric Entry [PDF]
As Martian atmospheric entry vehicles increase in size to accommodate larger payloads, transitional ow may need to be taken into account in the design of the heat shield in order to reduce heat shield mass. The mass of the Thermal Protection System (TPS)
Chang, C-L., Kline, H. L., Li, F.
core +1 more source
Energy Science &Engineering, EarlyView.This study investigates the heat transfer characteristics of copper‐foam composite phase change materials with different gradient porosities. Three models with uniform porosity and three models with gradient porosities are developed to examine their effects on temperature distribution and melting behavior. ABSTRACT Phase change materials (PCMs) exhibit
Wei Yang +6 more
wiley +1 more source
Applied SciencesThis study presents a surrogate-assisted multi-objective numerical framework to analyze and optimize the coupled effects of geometric parameters on the spray cone angle and discharge coefficient of a pressure swirl nozzle under microgravity conditions ...
Hailong Wu +5 more
doaj +1 more source
The Center of Excellence for Hypersonics Training and Research at the University of Texas at Austin [PDF]
Over the period of this grant (1986-92), 23 graduate students were supported by the Center and received education and training in hypersonics through MS and Ph.D. programs. An additional 8 Ph.D.
Dolling, David S.
core +1 more source