Tel. +49-(0)40-491 84 93 - Fax +49-(0)40-491 84 93 - e-mail: mersystem@freenet.de

These inventions concerns applications for lowering or increasing the turbulence or the flow resistance on objects.
 

	The following are specified here:
	1. The positive sharkskin surface profile or the negative sharkskin surface profile,               2. The positive Lotus effect surface profile or the negative Lotus effect surface profile                   3. The positive octopus compression suction cup surface profile or the negative octopus compression suction cup surface profile

These three surface profile types may be mounted on objects individually or in combination to one another as desired. Mounting solar cells on objects as desired is also of benefit for generating energy.

Figure 1

These pictures depict a model of positive sharkskin serving to reduce the flow resistance for the following technical applications or examples. Positive sharkskin produces a negative sharkskin with regard to the technical surface profile. The negative sharkskin is suited for reducing or increasing flow turbulence. While implementing positive sharkskin to decrease flow resistance a value of 3 to 18% can be attained. The negative sharkskin produces an increase or decrease in flow turbulence amounting to 2 to 18% on objects.

Figure 2

Figure 2 provides several illustrations of the positive lotus effect. The lotus effect (a surface resistant to collecting dirt) is based on hydrophobic tabular surfaces, which practically repel water and dirt particles. The positive lotus effect is suited best for reducing the flow resistance of objects located in water and for influencing flow turbulence, i.e. of turbine blades or turbine propellers of all types. In this respect a decrease of flow resistance by 2 to 8% has been attained on objects. The positive lotus effect as technical surface profile also produces a negative lotus effect. The negative lotus effect produces a favorable enhancement of flow turbulence and at the same time a turbulence harmonization, i.e. on the inside of turbines or all types of turbine vanes. In this regard an enhancement of flow turbulence amounting to 2 to 7% has been attained on objects.

The described negative lotus effect can also be implemented as additive in adhesives, bands, films of all types or in primary coats. The adherence, in other words the cohesion of the glued joints, increases in this case by approx. 8 to 15%, while in primary coats by approx. 4 to 12%.
 

Figure A
 

shows the rotors on a wind power system. As described in the earlier figures, these can be fitted with the corresponding surface profiles to influence current. A renowned power producer has claimed that the attachment of positive sharkskin surface profile and the lotus effect surface profile reduce the sound of the rotor blades by up to 80 %. This is important for environmental protection in Germany and the consequent legal standing of wind power.

Further, it is possible to fit solar cells to the rotor blades for all kinds of wind power systems to increase the power yield. To prevent soiling, the solar cells can be coated with a lotus effect surface profile. The rotation of the rotor blades for power production in wind power systems is stabilised in this design, and is therefore not reduced, rather

Back to start