TU Darmstadt / ULB / TUbiblio

Experimental Investigation of a Close-coupled Atomizer Using the Phase Doppler Measurement Technique

Apell, Niklas ; Tropea, Cameron ; Roisman, Ilia V. ; Hussong, Jeanette (2021):
Experimental Investigation of a Close-coupled Atomizer Using the Phase Doppler Measurement Technique.
Edinburgh, Scotland, University of Edinburgh, ICLASS 2021, 15th Triennial International Conference on Liquid Atomization and Spray Systems, Virtual Event, 29 Aug. - 2 Sept. 2021, DOI: 10.2218/iclass.2021.5856,
[Conference or Workshop Item]

Abstract

A common method for producing metal powders used for additive manufacturing is based on the atomization of a stream of molten metal by means of a high-pressure gas flow. In the present experimental study, the influence of the liquid mass flow rate on the atomization result has been investigated for a close-coupled atomizer operated with water and air as a substitute for molten metal and argon gas. The phase Doppler measurement technique has been employed to measure local particle size and velocity distributions within the spray. The results indicate that the liquid mass flow rate is a sensitive parameter in determining the mean particle size as well as the width of the particle size distribution. Its influence appears to be strongest in the center of the spray. Here, a decrease in the liquid mass flow rate has been found to lead to a significant decrease in the arithmetic mean particle diameter and a considerably narrower particle diameter distribution.

Item Type: Conference or Workshop Item
Erschienen: 2021
Creators: Apell, Niklas ; Tropea, Cameron ; Roisman, Ilia V. ; Hussong, Jeanette
Title: Experimental Investigation of a Close-coupled Atomizer Using the Phase Doppler Measurement Technique
Language: English
Abstract:

A common method for producing metal powders used for additive manufacturing is based on the atomization of a stream of molten metal by means of a high-pressure gas flow. In the present experimental study, the influence of the liquid mass flow rate on the atomization result has been investigated for a close-coupled atomizer operated with water and air as a substitute for molten metal and argon gas. The phase Doppler measurement technique has been employed to measure local particle size and velocity distributions within the spray. The results indicate that the liquid mass flow rate is a sensitive parameter in determining the mean particle size as well as the width of the particle size distribution. Its influence appears to be strongest in the center of the spray. Here, a decrease in the liquid mass flow rate has been found to lead to a significant decrease in the arithmetic mean particle diameter and a considerably narrower particle diameter distribution.

Journal or Publication Title: International Conference on Liquid Atomization and Spray Systems (ICLASS)
Number: 1
Place of Publication: Edinburgh, Scotland
Publisher: University of Edinburgh
Uncontrolled Keywords: IGSTC, PPAM, additive manufacturing, close-coupled atomization, molten metal atomization, phase Doppler measurement technique
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Fluid Mechanics and Aerodynamics (SLA)
Event Title: ICLASS 2021, 15th Triennial International Conference on Liquid Atomization and Spray Systems
Event Location: Virtual Event
Event Dates: 29 Aug. - 2 Sept. 2021
Date Deposited: 01 Oct 2021 06:14
DOI: 10.2218/iclass.2021.5856
Official URL: http://journals.ed.ac.uk/ICLASS_Edinburgh/article/view/5856
Additional Information:

Paper 96

Projects: IGSTC PPAM
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details