GAS RESISTANCE REDUCTION STRUCTURE, RESIN MOLDED PRODUCT, SHAPED MOLD, AND MOVABLE BODY

• Main Authors: CHIBA TAKESHI, ARAKAWA FUMIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS; FLUID-PRESSURE ACTUATORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a gas resistance reduction structure with an uneven structure capable of suppressing flow separation to reduce gas resistance when used for a predetermined movable object, fluid transfer, etc.SOLUTION: A first part having a plurality of convex parts 11 and a plurality of concave parts 12 and a second part are arranged on a first surface. A height from a bottom part of the concave part to a top part of the convex part of the first part is 10 μm or more and 1000 μm or less. A length of the first part in a second direction is 30 mm or more. A width of the first part and a width of the second part in a first direction intersecting the second direction are 0.2 mm or more and 50 mm or less.SELECTED DRAWING: Figure 1 【課題】凹凸構造を有する気体抵抗低減構造体において、所定の移動体や流体移送等に用いられる場合に、流れの剥離を抑制し、気体抵抗を低減することが可能な気体抵抗低減構造体を提供する。【解決手段】第１面に、複数の凸部１１および凹部１２を有する第１部と、第２部とが配置されており、上記第１部の上記凹部の底部から上記凸部の頂部までの高さが１０μｍ以上１０００μｍ以下であり、第２方向における上記第１部の長さが３０ｍｍ以上であり、上記第２方向に交差する第１方向における上記第１部の幅および上記第２部の幅が０．２ｍｍ以上５０ｍｍ以下である。【選択図】図１