Surface Cleanliness Based Dust Adhesion Model

Dust adhesion is a function of the thickness of gas adsorbed to dust particle surfaces. Surface cleanliness is a dimensionless parameter related to the inverse of adsorbed gas thickness. A model is presented to determine surface cleanliness and its effect on dust adhesion. The model is used to predict dust adhesion to aluminum, titanium, glass, rock, and nylon on the Moon, Mars, Mercury, Venus, and Earth. Adhesion determinations compare well with previous laboratory measurements. Methods of dust mitigation based on reducing surface cleanliness are discussed.