Why do my sunnies fog up?
There is a fine balance between great vision, aesthetics and comfort when it comes to #eyewear.
Why? Eyewear that is close to the face, snug in other words, will feel comfortable and provide a feeling of safety. This is particularly true when it comes to #sports eyewear.
However, the closer they hug the face, the less ventilation is available. Depending on your activity, sweat condensation will form and make vision blurry, aka annoying.
Below is an example of #cfd analysis performed on #sunglasses looking at ways to increase airflow and limit condensation.
Part-time LAA and BMAA Engineering Inspector
6 年The effect of anti-rain coatings like Gtechniq might also enable different eyepiece shapes/could be interesting . . .
CAE Business Manager at Emixa UK and Ireland
6 年My son is designing a device at school to try and increase airflow enough to deflect rain drops from the front of.cycling glasses. I have promised him I will "CFD" it for him. Watch this space :)
Director - UK Specialists CFD Team
6 年I always wanted to simulate this phenomena, you beat me to it! Are there more detailed findings published anywhere?
PE SE PEng FICE MIStructE | Civil / Structural Engineer Associate Technical Director at COWI
6 年Interesting!