Results 81 to 90 of about 15,644 (218)

Reduced Diffusion of Exhaled Air Using Partition Wall With Aerosol Diffusion Prevention Unit

open access: yesIndoor Air, Volume 2026, Issue 1, 2026.
In 2020, COVID‐19 caused a global pandemic, raising concerns regarding the possibility of another pandemic caused by a new or unknown virus in the future. Room ventilation is considered the most important factor to prevent disease transmission through droplets and aerosols.
Masaaki Horie   +3 more
wiley   +1 more source

Development and Design of Energy Efficient Oil-Flooded Screw Compressors [PDF]

open access: yes, 2019
It is estimated that about 17% of the world's generated power is used for compression. Thus all, even minor improvement of the efficiency of compressors will substantially reduce CO2 emission. This paper presents development of family of energy efficient
Abdan, S.   +5 more
core   +1 more source

Thermal–Structural Assessment of a Convergent Nozzle for UAV Applications Using Advanced Steady‐State Thermal Analysis

open access: yesJournal of Engineering, Volume 2026, Issue 1, 2026.
This study presents an in‐depth structural evaluation of the convergent nozzle in a microgas turbine engine (MGTE), focusing on the performance of various lightweight materials used in aerospace applications. The research investigates both structural and aerothermal characteristics of the nozzle under realistic operating conditions.
Darshan Kumar Jayaram   +4 more
wiley   +1 more source

Distribution of the temperature in the coaxial tube heat exchanger with spherical end

open access: yesCase Studies in Thermal Engineering, 2017
A solution is presented for flow inside a heat exchanger. An analytical approach is developed and validated with a numerical simulation using ANSYS CFX code module taking account different boundary condition in the inlet.
Dhahri Imen, Lotfi Ammar
doaj   +1 more source

Design and Optimization of a Pneumatic Multirow Teff Seeding System With Wet‐Flow Parameter Analysis

open access: yesModelling and Simulation in Engineering, Volume 2026, Issue 1, 2026.
Teff sowing in Ethiopia is hampered by the inefficiency of traditional broadcasting and the seed′s susceptibility to clogging in mechanical seeders. This study presents the design, optimization, and performance evaluation of a novel pneumatic row‐seeding machine tailored to address these specific challenges.
Achenef Tarekegn Mekonen   +3 more
wiley   +1 more source

Numerical Study on Characteristics of 3D Cavitating Hydrofoil

open access: yesMATEC Web of Conferences, 2015
The commercial software ANSYS CFX, APDL and Workbench are applied for modeling the hydrodynamic and structural interactions and characteristics of an elastic hydrofoil by means of a two-way FSI method.
Cao Wei, Xu Hao, Ren Huaixun, Wang Cong
doaj   +1 more source

CFD modelling of pressure and shear rate in torsionally vibrating structures using ANSYS CFX and COMSOL multiphysics [PDF]

open access: yes, 2018
This paper discusses numerical methodologies to simulate micro vibrations on a nontrivial torsionally oscillating structure. The torsional structure is the tip of a viscosity-density sensor using micro vibrations to measure the fluid properties.
Boiger, Gernot Kurt   +3 more
core   +1 more source

A Novel Conjugated Octupole–Quadrupole Ion Guide Achieving High Transmission

open access: yesRapid Communications in Mass Spectrometry, Volume 39, Issue 24, 30 December 2025.
ABSTRACT Rationale Ion transmission efficiency from the atmospheric pressure ion source to the vacuum is critical for the sensitivity of mass spectrometers. In this study, we developed a novel conjugated octupole–quadrupole ion guide—the 8–4 pole ion guide—that achieves high transmission efficiency.
Masuyuki Sugiyama   +2 more
wiley   +1 more source

Numerical Study of a Heat Transfer in a Photovoltaic (PV) Panel Water Cooling Systems

open access: yesRevue des Énergies Renouvelables
The proposed work uses the CFD commercial flow solver Ansys CFX. This solver is a finite volume-based method. Ansys CFX is used to compute heat transfer at the fluid-solid interface using its CHT module to improve the efficiency of the cooling PV system.
Ridha Hannat
doaj   +1 more source

An experimental and CFD study of liquid jet injection into a partially baffled mixing vessel: a contribution to process safety by improving the quenching of runaway reactions [PDF]

open access: yes, 2008
Thermal runaway remains a problem in the process industries with poor or inadequate mixing contributing significantly to these incidents. An efficient way to quench such an uncontrolled chemical reaction is via the injection of a liquid jet containing a ...
Fletcher, David F.   +3 more
core   +2 more sources

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