Manufacture method for diatomite composite drag reduction surface absorbed with drag reducer

A production method and diatomite technology, which are applied in the field of bionics, can solve the problems such as the inability of the drag reducer to effectively act in the turbulent effective area, the high cost of use and maintenance, and the rapid consumption of the drag reducer, so as to reduce the cost of use and maintenance and improve the The effect of utilizing efficiency and reducing dosage
CN102424602AInactive Publication Date: 2012-04-25SHANDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG UNIV OF TECH
Publication Date
2012-04-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the technical field of bionics, specifically to a manufacture method for a drag reduction surface. The manufacture method for the diatomite composite drag reduction surface absorbed with a drag reducer comprises: 1) carrying out a diatomite pretreatment process; 2) carrying out a diatomite filtering and screening process; 3) carrying out a diatomite wet blank manufacture process; 4) duplicating and forming a groove morphology of the high-fidelity artificial shark scales; 5) carrying out sintering, curing and direct forming for the diatomite under the artificial shark scale groove morphology constraint; 6) absorbing a sustained release drag reducer on the cured diatomite surface to prepare the diatomite composite drag reduction surface absorbed with the drag reducer. According to the present invention, the drag reducer is absorbed to the artificial shark diatomite composite drag reduction surface, such that the drag reduction function of the artificial shark scale grooves is provided, and the drag reduction function due to sustained release of the self-lubricating mucus by the artificial shark is further provided.
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Description

technical field

[0001] The invention relates to the field of bionic technology, in particular to a method for manufacturing a drag-reducing surface. Background technique

[0002] Sharks are good swimmers in the ocean. Their cruising speed in the water is about 5kph, and they can burst to 70kph instantly when chasing prey. In addition to its standard streamlined body, the high swimming speed of sharks is also closely related to its special micron-scale scale groove structure and the mucus secreted from its body surface. The combined effect of the two is called "shark skin effect". At present, imitating the drag reduction mechanism of shark skin and manufacturing high-fidelity shark-like composite drag reduction surfaces has become a research hotspot at home and abroad, and has important application value in the field of drag reduction for underwater vehicles and long-distance pipelines.

[0003] The use of drag reducing agent to reduce drag is an efficient drag reduction met...

Claims

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