Kerry K. Kuehn

Research

New soap film photos

Check out these images recently obtained by undergraduate student Amelia Lauth and myself in the fluid dynamics labs at the College. We are developing an apparatus to help us better understand the motion of spinning soap films. By studying thin soap films, we hope to obtain a more general understanding of how thin layers of fluids behave. This has applications from laboratory micro-fluidics to the study of meteorology and evolving weather patterns. Read More…

Bubbles! Building an apparatus to study rotating thin fluid films.

Here are some images from a talk I gave to the Faculty of Wisconsin Lutheran College last month. In this talk, I described work that my students and I are doing in designing and building an apparatus to study the dynamics of thin fluid films.

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Total Solar Eclipse

Below are some photos of the Solar Eclipse on August 21, 2017, which were taken at Magnolia Hollow Conservation Area, 10 miles north of Ste. Genevieve along the Mississippi River (GPS coordinates N38deg02.4sec, W90deg08.7sec). The weather was partly cloudy leading up to totality, but the weather cleared during totality and remained excellent until the end of the eclipse. Totality was amazing, and it lasted about 2 minutes and 39 seconds.
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Flowing soap film movies

Below are a few movies of flowing soap films captured by my research assistants, Elise Sloey and Amelia Lauth. The soap film is falling downward between two vertically oriented fishing lines. It is illuminated with a mercury vapor lamp. Reflected light from the front and back surfaces of the film gives rise to the variously colored interference fringes which can be seen. Read More…

Fluid dynamics and the Tides of Fundy

In June, my family and I visited the Bay of Fundy, which is situated between New Brunswick and Nova Scotia. The Bay of Fundy is famous for its unparalleled tidal ranges—up to 70 feet from high to low tide—and its stunning rock formations. Below I've posted a few photos. Read More…