Results 11 to 20 of about 6,161 (263)

Acoustic shielding and interaction effects for strongly heated supersonic twin jets

AIP Advances, 2021
The effects of jet interactions and acoustic shielding on the noise of strongly heated supersonic twin jets are studied using large-eddy simulations.
P. Pineau, C. Bogey
doaj   +1 more source

Influence of Non-Structural Parameters on Dual Parallel Jet Characteristics of Porous Nozzles

Micromachines, 2020
As an important actuator of the dual parallel jet, the porous nozzle has some non-structural parameters (such as inlet pressure, nozzle spacing ratio, etc.) which have a significant influence on energy transport, chemical combustion and pollutant ...
Jin Zhang, Ruiqi Lv, Qifan Yang, Baolei Liu, Ying Li   +4 more
doaj   +1 more source

Simulation and structural optimization of flat double-P type radiant tubes based on the orthogonal method

工程科学学报, 2017
The effects of structural dimensions such as central tube equivalent radius, branch tube equivalent radius, tube spacing, and tube length on the performance of a flat double-P type radiant tube were studied in this paper. The structural dimensions of the
XU Qian, FENG Jun-xiao
doaj   +1 more source

Probabilistic Assessment of Space Nuclear Propulsion System Nozzle [PDF]

Volume 3C: General, 1993
Uncertainties associated with the design parameters of the Space Nuclear Propulsion System (SNPS) nozzle such as geometry, boundary conditions, material behavior, thermal and pressure loads, etc. are considered to assess its reliability. Preliminary assessment of the reliability is performed using NESSUS (Numerical Evaluation of Stochastic Structures ...
Ashwin R. Shah, Richard D. Ball
openaire   +1 more source

Dual-bell nozzle for space launchers with fluidic control of transition

AIAA Propulsion and Energy 2021 Forum, 2021
The dual-bell nozzle is a promising altitude adaptive nozzle concept for improving the performance of existing space launchers as well as future reusable launch vehicles. It is characterized by an inflection in the wall geometry which links a base nozzle with a nozzle extension. Two working modes are therefore attained: a low-altitude mode in which the
Ferrero A., Conte A., Martelli E., Nasuti F., Pastrone D.   +4 more
openaire   +4 more sources

Assessing the Relationships between Interdigital Geometry Quality and Inkjet Printing Parameters

Micromachines, 2021
Drop on demand (DoD) inkjet printing is a high precision, non-contact, and maskless additive manufacturing technique employed in producing high-precision micrometer-scaled geometries allowing free design manufacturing for flexible devices and printed ...
Federico Bertolucci, Nicolò Berdozzi, Lara Rebaioli, Trunal Patil, Rocco Vertechy, Irene Fassi   +5 more
doaj   +1 more source

Effects of Nozzle Arrangement Strategies on Spray Uniformity in Soybean–Maize Intercropping

Agronomy
Soybean–maize intercropping involves the simultaneous planting of maize and soybean. Compound planting sprayers are equipped with a dual-spraying system, particularly for herbicide application, where isolation between crops is essential.
Wei Zhong, Wanting Yang, Yalong Li, Guanqun Wang, Xiang Dong, Mingxiong Ou, Weidong Jia, Xiaowen Wang   +7 more
doaj   +1 more source

Effect of nozzle spacing on flow mixing and development of triple rectangular free jets arrayed in a line

Journal of Fluid Science and Technology
The effect of nozzle spacing on the flow characteristics of triple rectangular free jets was studied experimentally and numerically. The nozzle spacing ratio S/de, where de is the equivalent diameter of a rectangular nozzle with an aspect ratio of 2, was
Koichi HAYASHIDA, Takahiro KIWATA, Peter OSHKAI   +2 more
doaj   +1 more source

Effect of working pressure and spacing of nozzles on the quality of spraying distribution

Crop Protection, 2022
Abstract The correct placement of the crop protection product on the target depends on the adequate distribution provided by the spray nozzles. In this research, the objective was to verify the influence of the working pressure and spacing between nozzles on the quality of the spray distribution.
Griesang, Fabiano, Spadoni, Ana Beatriz Dilena, Urah Ferreira, Pedro Henrique, da Costa Ferreira, Marcelo   +3 more
openaire   +3 more sources

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source