Št. zadetkov: 19
Video in druga učna gradiva
Oznake:
Leto:
2007
Vir:
videolectures.net
Izvirni znanstveni članek
Oznake:
gas dynamic virtual nozzle;micro-jet;compressible multiphase flow;finite volume method;volume of fluid;
In this paper we present a numerical study investigating the effects of nozzle geometry on stability, shape and flow characteristics of micron-sized liquid jets, produced by injection molded gas dynamic virtual nozzles (GDVNs) operating in vacuum. The jet characteristics are described as a function ...
Leto:
2018
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
serijska femtosekundna kristalografija;mikro-curek;brizganje;kapljanje stisljiv dvofazni tok;metoda končnih volumnov;metoda volumna tekočine;zasnova odprtine šobe;serial femtosecond crystallography;micro-jet;jetting;dripping;compressible two-phase flow;finite volume method;volume of fluid method;nozzle orifice design;
Liquid micro-jets are crucial for sample delivery of protein crystals and other macromolecular samples in serial femtosecond crystallography. When combined with MHz repetition rate sources, such as the European X-ray free-electron laser (EuXFEL) facility, it is important that the diffraction pattern ...
Leto:
2021
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
micro-jets;double flowfocusing nozzle;water and ethanol mixture;water and 2-propanol mixture;
The purpose of this work is to determine, based on the computational model, whether a mixture of a binary liquid is capable of producing longer, thinner and faster gas-focused micro-jets, compared to the mono-constituent liquids of its components. Mixtures of water with two different alcohols, water ...
Leto:
2021
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
liquid micro-sheets;two-phase nozzle flow;computational model;sensitivity study;liquid properties;operating conditions;
The purpose of this work is to numerically evaluate the behaviour of microscopic gas-focused liquid sheets in terms of material properties, nozzle structure and operating conditions used for experiments in spectroscopy and scattering where a short optical path is required. The numerical simulations ...
Leto:
2021
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
serial crystallography;micro jets;multiphase flow;fluid rheology;non-Newtonian fluid;flow focusing;
The present numerical study assesses the jet length, diameter and velocity of various non-Newtonian power-law fluids of a gas dynamic virtual nozzle. A related two-phase flow problem is formulated within the mixture framework and solved with the finite volume method and volume of fluid interface tre ...
Leto:
2024
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Objavljeni znanstveni prispevek na konferenci
Oznake:
serijska femtosekundna kristalografija;mikro-curek;reologija toka;nenewtonska tekočina;fokusiranja toka;serial crystallography;flow-focusing;micro jets;fluid rheology;non-Newtonian fluid;flow focusing;
Stable liquid jets are crucial for successful serial crystallography experiments. They are produced from gas dynamic virtual nozzles (GDVNs), where the liquid from an inner capillary is focused by a co-flowing gas from an outer converging capillary. Our previously investigated non-Newtonian jets wit ...
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
Knudsen number;compressible hypersonic flow;vacuum;liquid sheet nozzle;sample delivery system;CFD;
This work aims to verify whether the continuum mechanics assumption holds for the numerical simulation of a typical sample delivery system in serial femtosecond crystallography (SFX). Knudsen numbers were calculated based on the numerical simulation results of helium flow through the gas-focused liq ...
Leto:
2024
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Objavljeni znanstveni prispevek na konferenci
Oznake:
water-ethanol jetting;double-flows;nozzles;
Water-ethanol jetting from double-flow-focusing nozzles
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Objavljeni znanstveni prispevek na konferenci
Oznake:
electro-flow-focusing;numerical simulation;flow-focusing;liquid jet;
The influence of the applied voltage on electro-flow-focused micro-jets: a numerical study
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)