ScholarLens Back to search
2007•AIChE JournalRequires access

Temporally‐resolved inkjet drop impaction on surfaces

Hongming Dong, Wallace W. Carr, David G. Bucknall, Jeffrey F. Morris

Open publisher page 118 citations

Abstract

Abstract Impaction on smooth solid substrates of drops formed by the drop‐on‐demand (DOD) method was investigated over a wide range of impaction speeds (U0 = 2.21–12.2 m/s), surface contact angles (θ = 6–107°), and drop diameters (D0 = 40.8–50.5 μm). The experimental results were compared with several existing equations for predicting maximum spreading. The dimensionless time to reach maximum spreading ratio, scaled by D0/U0, ranged from 0.6 to 2.99, depending on Weber number and contact angle. Micron and millimeter drop impactions were compared, and the results indicate that scaling based on three dimensionless numbers (We, Re or Oh, and cos θ) is valid, but spreading ratios of millimeter drops are usually slightly larger during the whole process. The difference is ascribed mainly to the effect of gravity. © 2007 American Institute of Chemical Engineers AIChE J, 2007

About this research paper

What this paper is about

Abstract Impaction on smooth solid substrates of drops formed by the drop‐on‐demand (DOD) method was investigated over a wide range of impaction speeds (U0 = 2.21–12.2 m/s), surface contact angles (θ = 6–107°), and drop diameters (D0 = 40.8–50.5 μm). The experimental results were compared with several existing equations for predicting maximum spreading. The dimensionless time to reach maximum spreading ratio, scaled by D0/U0, ranged from 0.6 to 2.99, depending on Weber number and contact angle. Micron and millimeter drop impactions were compared, and the results indicate that scaling based on three dimensionless numbers (We, Re or Oh, and cos θ) is valid, but spreading ratios of millimeter drops are usually slightly larger during the whole process. The difference is ascribed mainly to the effect of gravity. © 2007 American Institute of Chemical Engineers AIChE J, 2007

Why it matters

OpenAlex reports 118 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Abstract Impaction on smooth solid substrates of drops formed by the drop‐on‐demand (DOD) method was investigated over a wide range of impaction speeds (U0 = 2.21–12.2 m/s), surface contact angles (θ = 6–107°), and drop diameters (D0 = 40.8–50.5 μm). The experimental results were compared with several existing equations for predicting maximum spreading. The dimensionless time to reach maximum spreading ratio, scaled by D0/U0, ranged from 0.6 to 2.99, depending on Weber number and contact angle. Micron and millimeter drop impactions were compared, and the results indicate that scaling based on three dimensionless numbers (We, Re or Oh, and cos θ) is valid, but spreading ratios of millimeter drops are usually slightly larger during the whole process. The difference is ascribed mainly to the effect of gravity. © 2007 American Institute of Chemical Engineers AIChE J, 2007

Key concepts: Dimensionless quantity, Drop (telecommunication), Impaction, Scaling, Millimeter, Drop impact, Contact angle, Mechanics

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Temporally‐resolved inkjet drop impaction on surfaces — Research Paper | ScholarLens