초록 ▼

The invention is a structure for inhibiting the turbulence phenomena of a fluid, exhibiting a surface geometry comprising at least one series of inhibition surfaces which inhibit turbulence present in a boundary layer of the fluid in proximity to the wall of the structure and which extend substantia

The invention is a structure for inhibiting the turbulence phenomena of a fluid, exhibiting a surface geometry comprising at least one series of inhibition surfaces which inhibit turbulence present in a boundary layer of the fluid in proximity to the wall of the structure and which extend substantially longitudinally in the direction of flow of the fluid. The inhibition surfaces comprise at least a first series of surfaces (0.sub.1) of amplitude a.sub.1 and at least a second series of surfaces (0.sub.2) of amplitude a.sub.2. The second series of surfaces (0.sub.2) is arranged so as to be superposed on the first series of surfaces (0.sub.1), the first series of surfaces (0.sub.1) allowing inhibition of at least turbulence of great amplitude and the second series of surfaces (0.sub.2) allowing inhibition of at least turbulences of low amplitude. The structure has an application for forming at least part of a pipe for conveying a pressurized gas.

대표청구항 ▼

[What is claimed is:] [1.]a first series of turbulence inhibiting surfaces in a boundary layer of the fluid in a vicinity of the pipe, the first series of turbulence inhibiting surfaces extending longitudinally in a direction of flow of the fluid and having an amplitude a, and a second series of tur

[What is claimed is:] [1.]a first series of turbulence inhibiting surfaces in a boundary layer of the fluid in a vicinity of the pipe, the first series of turbulence inhibiting surfaces extending longitudinally in a direction of flow of the fluid and having an amplitude a, and a second series of turbulence inhibiting surfaces having an amplitude a.sub.2 which are superimposed on the first series of turbulence inhibiting surfaces with the first series of turbulence inhibiting surfaces inhibiting turbulence of a first amplitude and the second series of turbulence inhibiting surfaces inhibiting turbulence of a second amplitude less than the first amplitude, the amplitude a, being greater than the amplitude a.sub.2 with the amplitude a, being measured with respect to a base surface of the first series of turbulence inhibiting surfaces and the amplitude a.sub.2 being measured with respect to a base surface of the second series of turbulence inhibiting surfaces and the base surface of the first series of turbulence inhibiting surfaces having a polygonal profile comprising n straight sides wherein n is .gtoreq.3 and a plurality of vertices subtending an angle formed between adjacent straight sides of the polygon.