麻豆影院

Image by Devin Sakamoto and Isis Peguero

In Flow Visualization, students聽reveal聽the beauty of fluids.

Flickering campfire flames, milk swirling in coffee, shape-shifting clouds: For Jean Hertzberg, they鈥檙e stunning visual manifestations of the physical forces governing our world.

Since 2003, the CU 麻豆影院 mechanical engineering professor has been sharing her enthusiasm for nature鈥檚 beauty by teaching students to reveal the hidden splendors of mingling gases and liquids 鈥� and make art of it.

鈥淚 wanted to bring that to students so that they could find something uniquely pleasurable,鈥� Hertzberg said of 鈥淔low Visualization,鈥� a fall class she offers that has produced a rich and growing body of artworks, more than 900 and counting.

Some engineers might scoff at making art, but she thinks it鈥檚 important.

鈥淸Flow visualization] is fascinating and enriches us,鈥� she said. 鈥淚t鈥檚 a turning of our perceptions outward, and that makes us, I believe, better humans.鈥�

Hertzberg鈥檚 own research involves creating 3D models of blood moving through the heart to see tiny changes in flow that can signal health issues. It could help improve medical diagnoses, she said 鈥� and 鈥渋t鈥檚 awesome to look at!鈥�

The flow visualization class is wildly popular, and there鈥檚 a long waitlist each year. It鈥檚 capped at 35 students to leave plenty of time for critiquing art. Students learn to use camera settings, play with light and add dyes to illuminate otherwise invisible fluid flows.

Many of these flows can be created at home 鈥� soap bubbles, food dye dropped in milk, water spattering off a spoon. Some students also use laboratory equipment to mix fluids with magnets, mirrors and membranes. In class reports, they describe the dynamics at play in their photos and videos.

Engineering courses tend to have firm instructions and test questions with clear right or wrong answers. But in Hertzberg鈥檚 class, which is usually about three-quarters engineering students, she encourages them to follow their interests. 鈥淚 don鈥檛 tell them what to do 鈥� I give them resources,鈥� she said.

Owen Brown (MMechEngr鈥�19) used mirrors to highlight the flow of heat rising off a lit match. At the same time, he was taking a course on combustion. 鈥淚 was able to visualize what I was learning [in my other class],鈥� he said, adding that flow visualization 鈥渢akes those equations and brings them into the real world.鈥�

Brown said he鈥檚 benefited by learning to communicate engineering ideas in an interdisciplinary setting through class presentations and critiques.

For art student Rayna Tedford (MArt鈥�03) the class 鈥渇ostered a deeper interest in science.鈥� Her work improved her photography, because she learned new ways to create abstract images, she said.

Working in teams with engineers, she added, felt like 鈥渨e were functioning as a whole brain. 鈥� It made me learn to value those types of teams.鈥�

Brown is now captivated by his morning coffee, marveling at the way the dense, cold cream runs down in clear lines through the hot liquid. The ritual drink has become a new kind of experience, a moment of immersion, he said, in 鈥渢he beauty of the natural world.鈥�

See more flow visualization聽images online at聽

In our print edition, this story appears under the title "Blowing the Doors Off."聽Comment on this story? Email聽editor@colorado.edu.