Results 81 to 90 of about 77,164 (345)

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Solid-Fuel Regression Rate for Standard-Flow Hybrid Rocket Motors

Journal of Thermal Science and Technology, 2012
Marxman's diffusion-limited analysis of hybrid rocket combustion has been often used to investigate various combustion problems in hybrid rocket motors.
Takakazu MORITA, Saburo YUASA, Shigeru YAMAGUCHI, Toru SHIMADA   +3 more
doaj   +1 more source

Experimental and theoretical study of combustion jet ignition [PDF]

A combustion jet ignition system was developed to generate turbulent jets of combustion products containing free radicals and to discharge them as ignition sources into a combustible medium.
Chen, D. Y., Ghoniem, A. F., Oppenheim, A. K.   +2 more
core   +1 more source

Fuel Spray Diagnostics [PDF]

, 1983
Fundamental experimental data base for turbulent flow mixing models is provided and better prediction of the more complex turbulent chemical reacting flows.
Bosque, M. A., Humenik, F. M.
core   +1 more source

Scaling of Second-Order Structure Functions in Turbulent Premixed Flames in the Flamelet Combustion Regime [PDF]

, 2020
Peter Brearley, Umair Ahmed, Nilanjan Chakraborty, Markus Klein   +3 more
openalex   +1 more source

Highly‐Conductive and Micro‐Structured Transparent Glass Substrates for Efficient and Scalable Photoelectrochemical Applications

Advanced Science, EarlyView.
This work paves the way for practical photoelectrochemical water splitting devices by addressing key upscaling challenges related to substrate conductivity, absorber inhomogeneity, and mass transfer limitations. Integrated improvements in substrate engineering, material processing, device architecture, and operational conditions allow the development ...
Telmo da Silva Lopes, Jeffrey Capitão, Amin Khan, Leonardo Rodrigues, Dzmitry Ivanou, Tânia Lopes, Paula Dias, Adélio Mendes   +7 more
wiley   +1 more source

Influences of Dual Air-Swirler Angles on Swirling Injection and Combustion of Kerosene-Air at a Supercritical Pressure

Aerospace Research Communications
High-pressure swirling injection and combustion are important phenomena in a modern gas turbine engine as its compression ratio has been significantly increased to improve thermodynamic efficiency.
Danyang Wang, Danyang Wang, Dongxin Huang, Jianguo Xu, Hua Meng, Hua Meng   +5 more
doaj   +1 more source

Direct simulation of compressible reacting flows [PDF]

A research program for direct numerical simulations of compressible reacting flows is described. Two main research subjects are proposed: the effect of pressure waves on turbulent combustion and the use of direct simulation methods to validate flamelet ...
Poinsot, Thierry J.
core   +1 more source

Numerical investigation of high-pressure combustion in rocket engines using Flamelet/Progress-variable models

, 2014
The present paper deals with the numerical study of high pressure LOx/H2 or LOx/hydrocarbon combustion for propulsion systems. The present research effort is driven by the continued interest in achieving low cost, reliable access to space and more ...
Coclite A., Cutrone L., Gamal E., Jachimowski J., Marinov N., Meeks E., Prausnitz D., Reid R., Thomas J., Vingert L.   +9 more
core   +1 more source

Polymer‐in‐Cage Strategy for Pore Tuning of High‐Aspect Ratio ZIF Nanoplate: Toward Sub‐Micrometer‐Thick Large Area CO2 Separation Membranes

Advanced Science, EarlyView.
A “polymer‐in‐cage” strategy transforms a zinc‐acrylate copolymer into an active pore‐modulating agent for ZIF‐8 nanoplates. The polymer actively tunes the MOF's pore structure by anchoring within its windows, while the nanoplates create tortuous pathways.
Minsu Kim, Hyo Jun Min, Min Kyu Choi, Ki Chul Kim, Bomi Kim, Miso Kang, Nahyeon Lee, Kiwon Eum, Jong Hak Kim, Dae Woo Kim   +9 more
wiley   +1 more source