Process for the chemical plotting of boundary layer flows, and chemigraphy materials for the practice thereof

Claim 2

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with a colorless, uncompacted or partially compacted anodically oxidizied aluminum layer thereon; (b) adding to said liquid a visible dye includable and adsorbable in said aluminum layer; and (c) exposing said surface to the flow of said liquid such that the dye contained therein is adsorbed in said aluminum layer to a degree characteristic of the flow of liquid thereover.

Claim 3

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with a homogeneously colored, uncompacted or partially compacted anodically oxidized aluminum layer thereon; (b) providing said liquid with an agent capable of decoloring or altering the color of the colored aluminum layer when in contact therewith; and (c) exposing said surface to the flow of said liquid such that said colored aluminum layer is decolored or altered in color to a degree characteristic of the flow of the liquid thereover.

Claim 4

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with a homogeneously colored, uncompacted or partially compacted anodically oxidized aluminum layer thereon; (b) providing said liquid with an agent capable of decoloring or altering the color of the colored aluminum layer when in contact therewith; and (c) exposing said surface to the flow of said liquid such that said colored aluminum layer is decolored or altered in color to a degree characteristic of the flow of the liquid thereover.

Claim 5

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with an uncompacted or partially compacted anodically oxidized aluminum layer homogeneously colored with a coloring material; (b) exposing said surface to the flow of said liquid whereby said liquid causes compaction of said aluminum layer to a degree characteristic of the flow of liquid thereover, whereby the coloring material of said layer is immobilized in areas where such compaction occurs; and (c) treating said surface to remove from said layer coloring material not contained in compacted areas of said layer.

Claim 6

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with an uncompacted or partially compacted anodically oxidized aluminum layer homogeneously colored with a coloring material; (b) exposing said surface to the flow of said liquid whereby said liquid causes compaction of said aluminum layer to a degree characteristic of the flow of liquid thereover, whereby the coloring material of said layer is immobilized in areas where such compaction occurs; and (c) treating said surface to remove from said layer coloring material not contained in compacted areas of said layer.

Claim 7

A process for the chemical plotting of boundary layer flows of liquids over a surface comprising: (a) providing said surface with a colorless, uncompacted or partially compacted anodically oxidized aluminum layer; (b) providing said liquid with a dye includable and adsorbable in uncompacted areas of said aluminum layer; and (c) exposing said surface to the flow of said liquid whereby said liquid causes compaction of said aluminum layer to a degree characteristic of the flow of liquid thereover, and wherein the dye in said liquid becomes included only in uncompacted areas of said aluminum layer.

Claim 8

A process for the chemical plotting of boundary layer flows of liquids over a surface comprising: (a) providing said surface with a colorless, uncompacted or partially compacted anodically oxidized aluminum layer; (b) providing said liquid with a dye includable and adsorbable in uncompacted areas of said aluminum layer; and (c) exposing said surface to the flow of said liquid whereby said liquid causes compaction of said aluminum layer to a degree characteristic of the flow of liquid thereover, and wherein the dye in said liquid becomes included only in uncompacted areas of said aluminum layer.

Claim 9

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with an uncompacted or partially compacted anodically oxidizied aluminum layer thereon; (b) thereafter providing said aluminum layer with a predetermined discontinuous pattern of a material containing a dye dissolvable in said liquid and includable in said aluminum layer; and (c) exposing said surface to the flow of said liquid whereby said material on said aluminum layer is dissolved in said liquid in a proportion characteristic of the flow of said liquid thereover and the dissolved dye then included in said aluminum layer in a manner characteristic of the course of the flowing liquid thereover.

Claim 10

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with an uncompacted or partially compacted anodically oxidizied aluminum layer thereon; (b) thereafter providing said aluminum layer with a predetermined discontinuous pattern of a material containing a dye dissolvable in said liquid and includable in said aluminum layer; and (c) exposing said surface to the flow of said liquid whereby said material on said aluminum layer is dissolved in said liquid in a proportion characteristic of the flow of said liquid thereover and the dissolved dye then included in said aluminum layer in a manner characteristic of the course of the flowing liquid thereover.

Claim 11

The process according to claim 5 wherein said dye-containing material provided on said aluminum layer comprises a dye dissolvable in said liquid and includable in said aluminum layer and a covering composition dissolvable in said liquid, but not includable in said aluminum layer.

Claim 12

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with an uncompacted or partially compacted anodically oxidized aluminum layer thereon; (b) thereafter providing said aluminum layer with a predetermined discontinuous pattern of a material containing a dye dissolvable in said liquid and includable in said aluminum layer; (c) thereafter providing the patterned material on said aluminum layer with a composition slowly dissolvable in said liquid; and (d) exposing said surface to the flow of said liquid whereby, after first dissolving said composition, said liquid dissolves the dye-containing material on said aluminum layer in a proportion characteristic of the flow of said liquid thereover and the dissolved dye then included in said aluminum layer in a manner characteristic of the course of the flowing liquid thereover.

Claim 13

A process for the chemical plotting of boundary layer flows of liquids over a surface, comprising: (a) providing said surface with an uncompacted or partially compacted anodically oxidized aluminum layer thereon; (b) thereafter providing said aluminum layer with a predetermined discontinuous pattern of a material containing a dye dissolvable in said liquid and includable in said aluminum layer; (c) thereafter providing the patterned material on said aluminum layer with a composition slowly dissolvable in said liquid; and (d) exposing said surface to the flow of said liquid whereby, after first dissolving said composition, said liquid dissolves the dye-containing material on said aluminum layer in a proportion characteristic of the flow of said liquid thereover and the dissolved dye then included in said aluminum layer in a manner characteristic of the course of the flowing liquid thereover.

Claim 14

A material for the chemigraphic plotting of boundary layer flows of liquid over a surface comprising a surface-anodized, uncompacted aluminum layer containing a predetermined discontinuous pattern of dye-containing material.

Claim 15

A material for the chemigraphic plotting of boundary layer flows of liquid over a surface comprising a surface-anodized, uncompacted aluminum layer containing a predetermined discontinuous pattern of dye-containing material.

Claim 16

A material according to claim 8 further comprising a composition coated over said discontinuous pattern of dye-containing material.

Claim 17

A material according to claim 9 wherein said composition consists, by weight, of 2 to 3 parts gelatin, 0.5 parts methyl cellulose and about 60 parts water.

Claim 18

A material according to claim 9 wherein said composition consists, by weight, of 50 parts sucrose, 4 parts methyl cellulose and 46 parts water.