How to Use boundary layer in a Sentence

boundary layer

noun
  • When the boundary layer is too warm, the snowflakes end up melting on their way down.
    — Dave Epstein, BostonGlobe.com, 10 Mar. 2023
  • Ideally, the boundary layer should sit next to the skin, which helps to keep it smooth.
    — The Physics Arxiv Blog, Discover Magazine, 26 Mar. 2024
  • The mixture of the boundary layer is slightly cooler dry air and hot humid air which can cause intense storms.
    — Hollie Silverman, CNN, 24 June 2019
  • In the case of airplanes, there’s a fluid boundary layer, a thin layer of air that covers any surface.
    — Manasee Wagh, Popular Mechanics, 11 Mar. 2022
  • The reason for this difference is what physicists refer to as the boundary layer.
    — Paul Cappiello, The Courier-Journal, 31 Jan. 2020
  • The drone can descend to the boundary layer of the hurricane, the part just above the ocean where heat and moisture cause more intense gusts.
    — Rebecca Cairns and Hazel Pfeifer, CNN, 18 Nov. 2022
  • That smoke starts off in the eddies of what atmospheric scientists call the boundary layer.
    — Matt Simon, Wired, 31 Aug. 2020
  • Finally, the side louvres have been replaced by scoops-big hairy scoops that poke out into the airstream beyond the boundary layer.
    — Car and Driver, 14 Sep. 2022
  • When escaping the effects of the boundary layer, location is key.
    — Popular Mechanics, 30 July 2020
  • Two slots appear in the floor ahead of each of the belts, controlling the boundary layer that would otherwise confuse the results.
    — Jonathan M. Gitlin, Ars Technica, 21 Mar. 2022
  • One of the ways to get information from the boundary layer includes using an unmanned drone that can fly in and around the highest wind gusts.
    — Analisa Novak, CBS News, 29 Sep. 2022
  • The dimples produce a thin, turbulent boundary layer of air that hugs the ball's surface, decreasing the size of wake at the back of the ball.
    — Jeff Harper, chicagotribune.com, 11 Mar. 2021
  • For much of the day, the stones get so hot that a boundary layer of roastingly hot air forms over them, preventing the microbes from soaking up the moisture.
    — Zack Savitsky, Quanta Magazine, 12 July 2023
  • For aeroacoustic testing the rolling road is covered, and arrays of microphones set up just outside of the boundary layer.
    — Jonathan M. Gitlin, Ars Technica, 21 Mar. 2022
  • At night and during cooler times of the year, the planetary boundary layer contracts as the sun’s heat does less to warm Earth’s surface.
    — Paul Duginski, Los Angeles Times, 1 Aug. 2023
  • Scientists explain the increasing evening heat by pointing to the section of the atmosphere called the boundary layer, which sits just above the ground.
    — Jane Braxton Little, Scientific American, 27 Oct. 2020
  • As the summertime sun’s heat increases, the planetary boundary layer expands.
    — Paul Duginski, Los Angeles Times, 1 Aug. 2023
  • The turbulence mixes moist air near the top of the cloud, pushing it up and out through an important boundary layer that caps stratocumulus clouds, while drawing dry air in from above.
    — Natalie Wolchover, WIRED, 3 Mar. 2019
  • According to the carmaker, plasma actuators use electric charges to adjust the boundary layer of air moving over a surface—in this case the rear end.
    — Peter Lyon, Forbes, 13 Nov. 2023
  • And smoothness matters because the thin boundary layer of air clinging to the ball determines where the flow separates, how large a wake forms, and how much drag the ball experiences.
    — John Eric Goff, The Conversation, 13 May 2026
  • Scientists predict the boundary layer — a mix of original peak ring materials, tsunami deposits and melted rocks that fell from the sky — should span hundreds of feet.
    — Eric Betz, Discover Magazine, 20 Sep. 2017
  • But for open ocean wind farms, those cyclonic storms should be a boon, promoting the mixing of kinetic energy between the boundary layer and the more powerful trade winds sailing over it.
    — IEEE Spectrum, 9 Oct. 2017
  • Tame the wind, protect the boundary layer A good winter jacket also needs to withstand wind, which can strip away the thin boundary layer of warm air that naturally forms around you.
    — Longji Cui, The Conversation, 26 Dec. 2025
  • This condition creates a cooler boundary layer that reduces the amount of heat and the electron temperature at the material surfaces.
    — Aman Tripathi, Interesting Engineering, 23 Aug. 2025
  • The boundary layer is located 3,000 feet where the air and ocean meet—considered a violent churning cauldron of wind and salt water.
    — Analisa Novak, CBS News, 29 Sep. 2022
  • This configuration exploits the boundary layer of air flowing over the airframe to increase efficiency.
    — David Szondy june 14, New Atlas, 14 June 2026
  • Golf ball dimples reduce the drag flow by creating a turbulent boundary layer of air, while the ball's spin generates lift by creating a higher air pressure area on the bottom of the ball than on the top.
    — Jennifer Ouellette, Ars Technica, 14 Nov. 2019
  • The boundary layer, near the water surface, was saturated, but that saturation continued up about 3-5 km.
    — Bill Kearney, Sun Sentinel, 13 Apr. 2023
  • Her specialty was the field of boundary layer effects on aerospace vehicle configurations at supersonic speeds.
    — Julia Musto, Fox News, 27 Feb. 2021
  • The tests helped identify the drag crisis, the speed range in which changes in the boundary layer and flow separation produce a sharp change in drag, which can alter the ball’s acceleration, trajectory and range.
    — John Eric Goff, The Conversation, 13 May 2026

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'boundary layer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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