Results 21 to 30 of about 25,109 (264)

Study on interaction mechanism between natural convection and forced convection during storage and temperature rise of waxy crude oil tank

Engineering Applications of Computational Fluid Mechanics
As the primary facility for crude oil storage, storage tanks play a critical role in achieving high operational efficiency and low energy consumption through comprehensive understanding of complex thermal convection mechanisms.
Wei Sun, Yuduo Liu, Wenhua Xu, Lihui Kan, Hongfei Liu, Lixin Zhao, Zhihua Wang   +6 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Hot‐Film and Calorimetric Methods With Transient Heating for Measurement of High Biofluid Flow Rate

Advanced Functional Materials, EarlyView.
Accurate measurement of biofluid flow rate is vital for clinical diagnostics. We propose a transient heating strategy using short thermal pulses and peak temperature tracking to enhance the flow sensitivity of the hot‐Film and calorimetric methods. Simulations show how optimal heating time maximizes sensitivity across flow rates.
Yuanting Wei, Shupeng Li, Kyung Rok Pyun, Tianyu Yang, Bosung Kim, Haotian Yang, John A. Rogers, Yonggang Huang, Haohui Zhang   +8 more
wiley   +1 more source

Multimodal Soft Surgical Robots Enabled by Eco‐Degradable, Sterilizable Polymers and Transient Electronics

Advanced Functional Materials, EarlyView.
A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe, 
Minseong Chae, Kyung‐Sub Kim, Gyeong‐Seok Hwang, Jun‐Seok Shim, Sung‐Woo Kim, Yong‐Wu Kim, Jieun Han, Jae‐Young Bae, Jae‐Hwan Lee, Minjung Chae, Jooik Jeon, Joo‐Hyeon Park, You‐Jung Park, Ju‐Yong Lee, Sung‐Geun Choi, Min‐Ha Oh, Yong‐Joong Shin, Young‐In Ryu, Ji‐Woo Gu, Seong‐Yu Choi, Jeong‐Yun Sun, Jung Keun Hyun, Myoung‐Ryul Ok, Sang Yup Kim, Edyta Wyszkowska, Ju‐Young Kim, Kang‐Sik Lee, Seung‐Kyun Kang   +27 more
wiley   +1 more source

Evaluation of the melting process of phase change materials in a tilted rectangular container: Experimental study

Energy and Built Environment
Natural convection plays a crucial role in improving the heat transfer efficiency during the phase change material (PCM) melting process. A major challenge is understanding the intensity and transformation of natural convection, which was strongly ...
Qi Peng, Wenchao Duan, Xiaoqin Sun, Fei Jiang, Yongqiang Luo, John Zhai   +5 more
doaj   +1 more source

INVESTIGATION OF INDIRECT SOLAR DRYING OF GINGER RHIZOMES (ZINGIBER OFFICINALE): A COMPARATIVE STUDY [PDF]

Journal of Engineering Science and Technology, 2017
In this communication, an attempt has been made to investigate the drying kinetics of ginger rhizomes under natural and forced convection indirect solar drying modes.
SUNIL K. SANSANIWAL, M. KUMAR, RAJNEESH, V. KUMAR   +3 more
doaj  

Combined Natural Convection and Radiation Heat Transfer of Various Absorbing-Emitting-Scattering Media in a Square Cavity

Advances in Mechanical Engineering, 2014
A numerical model is developed to simulate combined natural convection and radiation heat transfer of various anisotropic absorbing-emitting-scattering media in a 2D square cavity based on the discrete ordinate (DO) method and Boussinesq assumption.
Xianglong Liu, Guangcai Gong, Hengsheng Cheng   +2 more
doaj   +1 more source

Natural Convection Numeric Simulation on Metal Freezing Using Differential Method

Mekanika, 2017
The research of modeling of natural convection in metal solidification process with finite different method was conducted to determine temperature distribution and fluid flow profil with variations value Rayleigh number. The research conducted by solving
Heri Suprianto, Eko Prasetyo Budiana, Purwadi Joko Widodo   +2 more
doaj   +1 more source

Vertical natural convection: application of the unifying theory of thermal convection [PDF]

Journal of Fluid Mechanics, 2015
AbstractResults from direct numerical simulations of vertical natural convection at Rayleigh numbers $1.0\times 10^{5}$–$1.0\times 10^{9}$ and Prandtl number $0.709$ support a generalised applicability of the Grossmann–Lohse (GL) theory, which was originally developed for horizontal natural (Rayleigh–Bénard) convection. In accordance with the GL theory,
Chong Shen Ng, Andrew Ooi, Detlef Lohse, Daniel Chung   +3 more
openaire   +3 more sources

Fast Charge–Discharge of LiNi0.9Co0.05Mn0.05 Enabled by a Bikitaite‐Infused Separator for Li Metal Batteries

Advanced Functional Materials, EarlyView.
A bikitaite‐infused cellulose separator is introduced for Li metal batteries, leveraging bikitaite zeolite's ion‐conductive properties to regulate Li+‐ion flux and suppress dendrite growth. The membrane design ensures uniform Li plating, enhanced electrolyte wettability, and robust thermal/mechanical stability, delivering stable performance and low ...
Isheunesu Phiri, Kennedy Ssendagire, Sun‐Yul Ryou   +2 more
wiley   +1 more source