By K. L. Mittal
This publication is the second one quantity within the sequence "Contact perspective, Wettability and Adhesion." The prime quantity was once released in 2013.
Even a cursory look on the literature express that during contemporary years the curiosity in figuring out and controlling wetting habit has grown exponentially. at present, there's great examine job in rendering surfaces superhydrophobic, superhydrophilic, superoleophobic, superoleophilic, omniphobic and omniphilic as a result of their purposes in lots of technologically vital fields. additionally the sturdiness or robustness of fabrics with such great" features is intensely major, in addition to the usage of "green" (biobased) fabrics to acquire such surfaces.
This e-book containing 19 articles displays more moderen advancements in definite components coated in its predecessor quantity in addition to it contains a few themes that have been no longer lined sooner than. Concomitantly, this booklet presents a medium to maintain abreast of the most recent examine task and advancements within the area of touch attitude, wettability and adhesion.
The issues mentioned comprise: knowing of wetting hysteresis; fabrication of superhydrophobic fabrics; plasma remedy to accomplish superhydrophilic surfaces; hugely liquid repellent textiles; amendment of paper surfaces to manage liquid wetting and adhesion; Cheerios influence and its regulate; engineering fabrics with superwettability; laser ablation to create micro/nano-patterned surfaces; liquid repellent amorphous carbon nanoparticle networks; mechanical sturdiness of liquid repellent surfaces; wetting of sturdy partitions and spontaneous capillary stream; courting among roughness and oleophilicity; superhydrophobic and superoleophobic eco-friendly fabrics; computational research of wetting on hydrophobic surfaces: software to self-cleaning mechanisms; bubble adhesion to superhydrophilic surfaces; floor unfastened power of superhydrophobic fabrics; and function of floor unfastened strength in pharmaceutical pill tensile strength.
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Extra resources for Advances in Contact Angle, Wettability and Adhesion, Volume Two
The limit of SCF is then obtained for a given aspect ratio. 20a. The two limits—theoretical and numerical—are very similar. 4 Dynamic Approach Even if there are good arguments for the validity of the quasi-static Evolver approach concerning the interface shape, it cannot predict the value of the velocity of the flow. A dynamic approach is required to predict the flow velocity. 30), d mV dt Fdrag . 59) Assuming that the advancing contact angle is close to the Young contact angle, the capillary force is given by Fcap w cos wF 2 h cos d .
USA) 63, 292–299 (1969). 11. P. Concus and R. Finn, Capillary surfaces in a wedge—differing contact angles, Microgravity Sci. Technol, 7, 152–155 (1994). 12. D. Juncker, Capillary microfluidic systems for bio/chemistry, PhD thesis, University of Neuchatel, Neuchatel, Switzerland (2002). 13. M. Kitron-Belinkov, A. Marmur, T. V. Dadheech, Groovydrops: Effect of groove curvature on spontaneous capillary flow, Langmuir 23, 8406–8410 (2007). 14. Yongkang Chen, L. S. Melvin, S. Rodriguez, D. M. Weislogel, Capillary driven flow in micro scale surface structures, Microelec.
39) produces exactly the LWR equation. The method can be extended to the different shapes reported in the literature. 1 the values of for a few geometries [28,33-36]. 47) where Re is the Reynolds number and f the Fanning coefficient. 48) where ΔP is the pressure drop in the length z in the channel. 46) is related to the hydraulic diameter by 8DH f Re . 2, taken from , shows some expressions for the Poiseuille number together with the friction length. 2, the travel distances and flow velocities can be easily determined.
Advances in Contact Angle, Wettability and Adhesion, Volume Two by K. L. Mittal