Sea spray is responsible for a great deal of heat and moisture fluctuation between the world’s oceans and earth’s atmosphere. To better understand how exactly that sea spray forms, researchers in the Department of Mechanical Engineering Hydrodynamics Laboratory, directed by Professor James Duncan, ran a series of experiments to explore just what was going on when waves break and make spray.

The team conducted experiments in a fresh water tank using a programmable wave maker, and then through the analysis of more than 180,000 holographic images synthesized the resulting date. Their efforts revealed that spray droplets actually formed during three distinct time zones. The first of these droplets occur when the wave maker, or jet, hits the water, the second occurs when the larger air bubbles trapped by the wave maker reach the surface and burst, and the third is then the smaller bubbles finally reach the surface later in the breaking process.

The team’s work was featured on the cover of the July 2019 issue of Geophysical Research Letters and was highlighted on and Earth & Space Science News.

The results of their research can be used to help improve models of spray droplet motion and evaporation. Future experiments aim to explore the effects of salinity, surfactants, and wind.

M. A. Erinin et al. Spray Generation by a Plunging Breaker, Geophysical Research Letters (2019). DOI: 10.1029/2019GL082831

November 1, 2019

«Previous Story  



Current Headlines

A Tech Rx for COVID Recovery at Home

Bar-Cohen, Distinguished University Professor and Thermal Packaging Pioneer, Passes at 74

$100,000 investment from Amazon to power Clark School initiatives in diversity, robotics research and education

Xu Wins Best Student Paper Award at ASME Dynamic Systems and Control Conference

Paying It Forward

Calculating Uncertainties in Chaotic Turbulent Flow Models

Challenges and Opportunities: Student Internships During 2020

Mehr Gift Establishes Two Funds at UMD

Computer Algorithms Help Improve Emissions Control

Alumnus Charles Dickerson Named President of SUEZ North America's Utility Division

Back to top  
AML Home Clark School Home UMD Home ENME Home