Results 131 to 140 of about 14,664 (244)

CFD Analysis of Dual‐Layer PCM Roofs for Thermal Mitigation in Residential Buildings

Heat Transfer, EarlyView.
ABSTRACT This study presents a computational fluid dynamics analysis of dual‐layer phase change material (PCM) roofs for passive cooling in residential buildings under the hot and humid climate of Bangladesh. A three‐dimensional transient model was developed in ANSYS Fluent using the enthalpy–porosity approach to simulate coupled heat conduction ...
Mohammad Junaid, Sakhawat Hossan Robel, Mahmud Or‐Rashid, Pabel Shahrear, Md Shajedul Karim, Suvash C. Saha, Goutam Saha   +6 more
wiley   +1 more source

Low-velocity impact damage characteristics and structural optimization of metal and CFRP through-thickness reinforcement connection structures

Cailiao gongcheng
To improve the impact resistance of metal and composite material joint structures， a metal synapse structure was manufactured using metal laser selective melting technology.
ZHAO Kunpeng, ZHENG Huilong, KANG Zhenya, ZHANG Saile, DONG Haibin   +4 more
doaj   +1 more source

Probabilistic Risk Analysis and Margin Process for a Flexible Thermal Protection System [PDF]

Atmospheric entry vehicle thermal protection systems are margined due to the uncertainties that exist in entry aeroheating environments and the thermal response of the materials and structures.
Bowes, Angela L, Brune, Andrew J., Tobin, Steven A.   +2 more
core   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

Heat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira, R. R. Souza, A. S. Moita   +2 more
wiley   +1 more source

Mechanisms of Laser Ablation in Liquids and Their Impact on the Efficiency of Nanoparticle Generation

Laser &Photonics Reviews, EarlyView.
Laser ablation in liquid enables nanoparticle synthesis from diverse materials but remains less energy‐efficient than ablation in air. This study quantifies the absorption‐corrected ablation efficiency and experimentally confirms redeposition as the key loss mechanism using pump‐probe microscopy.
Maximilian Spellauge, David Redka, Alexander Podhrazsky, Katharina Eckmann, Constanze Eulenkamp, Oliver Koepp, Carlos Doñate‐Buendia, Bilal Gökce, Stephan Barcikowski, Heinz Paul Huber   +9 more
wiley   +1 more source

A Numerical Study on Leakage Flow in the Shroud Cavity of a Centrifugal Impeller

Energies
A high-pressure centrifugal compressor with a shroud cavity is a key piece of energy equipment found in a compressed air energy storage (CAES) system.
Jiaxi Chen, Zhitao Zuo, Jixiang Chen, Jianting Sun, Haisheng Chen   +4 more
doaj   +1 more source

Electrostatic propulsion beam divergence effects on spacecraft surfaces Quarterly technical report, 25 Jul. - 23 Oct. 1970 [PDF]

Effects of electrostatic propulsion beam divergence effects on spacecraft ...

core   +1 more source

Role of High Fidelity Vs. Low Fidelity Experimental Data in Machine Learning Model Performance for Predicting Polymer Solubility

Macromolecular Rapid Communications, EarlyView.
The performance of machine learning models for classifying polymer solubility improves when a high‐fidelity experimental dataset is used compared to a low‐fidelity experimental dataset. This has important implications for justifying the value of spending additional time and resources preparing detailed experimental datasets.
Mona Amrihesari, Manali Banerjee, Raul Olmedo, Blair Brettmann   +3 more
wiley   +1 more source

Study on Flow Structure Characteristics Along the Latticework Duct Subchannels and Classification Boundary Prediction

Aerospace
To reasonably divide the types of flow units along the latticework subchannel, one must prepare for the establishment of a one-dimensional fluid network model of the latticework in the middle region of the turbine blade.
Minlong Li, Huishe Wang, Ke Yang, Rongguo Yu, Jingze Ton   +4 more
doaj   +1 more source

Challenges and Opportunities in Machine Learning for Light‐Emitting Polymers

Macromolecular Rapid Communications, EarlyView.
The performance of light‐emitting polymers emerges from coupled effects of chemical diversity, morphology, and exciton dynamics across multiple length scales. This Perspective reviews recent design strategies and experimental challenges, and discusses how machine learning can unify descriptors, data, and modeling approaches to efficiently navigate ...
Tian Tian, Yinyin Bao
wiley   +1 more source