DE2133865C3 - Verfahren zum Sichtbarmachen von Grenzflächenströmungszuständen - Google Patents
Verfahren zum Sichtbarmachen von GrenzflächenströmungszuständenInfo
- Publication number
- DE2133865C3 DE2133865C3 DE2133865A DE2133865A DE2133865C3 DE 2133865 C3 DE2133865 C3 DE 2133865C3 DE 2133865 A DE2133865 A DE 2133865A DE 2133865 A DE2133865 A DE 2133865A DE 2133865 C3 DE2133865 C3 DE 2133865C3
- Authority
- DE
- Germany
- Prior art keywords
- indicator
- flow
- agent
- color
- blue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- 239000003795 chemical substances by application Substances 0.000 claims description 31
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- GYCKQBWUSACYIF-UHFFFAOYSA-N Ethyl salicylate Chemical compound CCOC(=O)C1=CC=CC=C1O GYCKQBWUSACYIF-UHFFFAOYSA-N 0.000 claims 1
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- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims 1
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- -1 oxy- Chemical class 0.000 description 7
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- 235000011187 glycerol Nutrition 0.000 description 6
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- 239000004743 Polypropylene Substances 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
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- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
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- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- OBRMNDMBJQTZHV-UHFFFAOYSA-N cresol red Chemical compound C1=C(O)C(C)=CC(C2(C3=CC=CC=C3S(=O)(=O)O2)C=2C=C(C)C(O)=CC=2)=C1 OBRMNDMBJQTZHV-UHFFFAOYSA-N 0.000 description 3
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- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000005844 Thymol Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- 230000003993 interaction Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
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- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 2
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- 229960000790 thymol Drugs 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- RPAJSBKBKSSMLJ-DFWYDOINSA-N (2s)-2-aminopentanedioic acid;hydrochloride Chemical class Cl.OC(=O)[C@@H](N)CCC(O)=O RPAJSBKBKSSMLJ-DFWYDOINSA-N 0.000 description 1
- OTVRYZXVVMZHHW-FNOPAARDSA-N (8s,9s,10r,13r,14s,17r)-3-chloro-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1h-cyclopenta[a]phenanthrene Chemical compound C1C=C2CC(Cl)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 OTVRYZXVVMZHHW-FNOPAARDSA-N 0.000 description 1
- VFNKZQNIXUFLBC-UHFFFAOYSA-N 2',7'-dichlorofluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC(Cl)=C(O)C=C1OC1=C2C=C(Cl)C(O)=C1 VFNKZQNIXUFLBC-UHFFFAOYSA-N 0.000 description 1
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- ZPLCXHWYPWVJDL-UHFFFAOYSA-N 4-[(4-hydroxyphenyl)methyl]-1,3-oxazolidin-2-one Chemical compound C1=CC(O)=CC=C1CC1NC(=O)OC1 ZPLCXHWYPWVJDL-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DSEKYWAQQVUQTP-UHFFFAOYSA-N Cerin Natural products CC12CCC3(C)C4CC(C)(C)CCC4(C)CCC3(C)C2CCC2(C)C1CC(O)C(=O)C2C DSEKYWAQQVUQTP-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 1
- 235000018453 Curcuma amada Nutrition 0.000 description 1
- 241001512940 Curcuma amada Species 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- 244000089409 Erythrina poeppigiana Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
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- 241001072332 Monia Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000009776 Rathbunia alamosensis Nutrition 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- ITZXULOAYIAYNU-UHFFFAOYSA-N cerium(4+) Chemical compound [Ce+4] ITZXULOAYIAYNU-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- UVZUFUGNHDDLRQ-LLHZKFLPSA-N cholesteryl benzoate Chemical compound O([C@@H]1CC2=CC[C@H]3[C@@H]4CC[C@@H]([C@]4(CC[C@@H]3[C@@]2(C)CC1)C)[C@H](C)CCCC(C)C)C(=O)C1=CC=CC=C1 UVZUFUGNHDDLRQ-LLHZKFLPSA-N 0.000 description 1
- WCLNGBQPTVENHV-MKQVXYPISA-N cholesteryl nonanoate Chemical compound C([C@@H]12)C[C@]3(C)[C@@H]([C@H](C)CCCC(C)C)CC[C@H]3[C@@H]1CC=C1[C@]2(C)CC[C@H](OC(=O)CCCCCCCC)C1 WCLNGBQPTVENHV-MKQVXYPISA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- ZXJXZNDDNMQXFV-UHFFFAOYSA-M crystal violet Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1[C+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 ZXJXZNDDNMQXFV-UHFFFAOYSA-M 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- CIWXFRVOSDNDJZ-UHFFFAOYSA-L ferroin Chemical compound [Fe+2].[O-]S([O-])(=O)=O.C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1 CIWXFRVOSDNDJZ-UHFFFAOYSA-L 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- RRSMHQNLDRCPQG-UHFFFAOYSA-N methanamine;hydrofluoride Chemical compound [F-].[NH3+]C RRSMHQNLDRCPQG-UHFFFAOYSA-N 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- CEQFOVLGLXCDCX-WUKNDPDISA-N methyl red Chemical compound C1=CC(N(C)C)=CC=C1\N=N\C1=CC=CC=C1C(O)=O CEQFOVLGLXCDCX-WUKNDPDISA-N 0.000 description 1
- 150000003956 methylamines Chemical class 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007793 ph indicator Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000012070 reactive reagent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
- Y10T137/2065—Responsive to condition external of system
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Liquid Crystal Substances (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2133865A DE2133865C3 (de) | 1971-07-07 | 1971-07-07 | Verfahren zum Sichtbarmachen von Grenzflächenströmungszuständen |
| CH842872A CH575597A5 (https=) | 1971-07-07 | 1972-06-07 | |
| GB2916572A GB1390228A (en) | 1971-07-07 | 1972-06-21 | Indication of flow of a gas or vapour |
| NL7209155A NL7209155A (https=) | 1971-07-07 | 1972-06-30 | |
| SE7208852A SE378305B (https=) | 1971-07-07 | 1972-07-05 | |
| AT581072A AT318945B (de) | 1971-07-07 | 1972-07-06 | Verfahren zum Sichtbarmachen von Grenzflächenströmungszuständen |
| FR7224552A FR2145312A5 (https=) | 1971-07-07 | 1972-07-06 | |
| JP6811772A JPS5517330B1 (https=) | 1971-07-07 | 1972-07-07 | |
| US00269822A US3787874A (en) | 1971-07-07 | 1972-07-07 | Method for making boundary-layer flow conditions visible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2133865A DE2133865C3 (de) | 1971-07-07 | 1971-07-07 | Verfahren zum Sichtbarmachen von Grenzflächenströmungszuständen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2133865A1 DE2133865A1 (de) | 1973-01-18 |
| DE2133865B2 DE2133865B2 (de) | 1974-03-21 |
| DE2133865C3 true DE2133865C3 (de) | 1974-10-24 |
Family
ID=5812970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2133865A Expired DE2133865C3 (de) | 1971-07-07 | 1971-07-07 | Verfahren zum Sichtbarmachen von Grenzflächenströmungszuständen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3787874A (https=) |
| JP (1) | JPS5517330B1 (https=) |
| AT (1) | AT318945B (https=) |
| CH (1) | CH575597A5 (https=) |
| DE (1) | DE2133865C3 (https=) |
| FR (1) | FR2145312A5 (https=) |
| GB (1) | GB1390228A (https=) |
| NL (1) | NL7209155A (https=) |
| SE (1) | SE378305B (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3835703A (en) * | 1973-05-21 | 1974-09-17 | Us Army | Flow visualization using color reversible dyes |
| DE2445398A1 (de) * | 1974-09-23 | 1976-04-01 | Siemens Ag | Verfahren zum aufzeichnen von stationaeren fluessigkeitsstroemungen an grenzflaechen |
| DE2659693A1 (de) * | 1976-12-31 | 1978-07-13 | Stuttgart Instgemeinschaft Ev | Verfahren zur sichtbarmachung von stroemungsvorgaengen an festen oberflaechen |
| DE2741405C2 (de) * | 1977-09-14 | 1983-04-14 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Herstellung von Restfeuchtephotogrammen |
| DE2928690A1 (de) * | 1979-07-16 | 1981-02-12 | Siemens Ag | Verfahren zum chemischen aufzeichnen von grenzschichtstroemungen und chemigraphiematerialien zur durchfuehrung des verfahrens |
| DE3008260A1 (de) * | 1980-03-04 | 1981-09-17 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum aufzeichnen von stroemungsgrenzschichten in fluessigen medien |
| DE3008265A1 (de) * | 1980-03-04 | 1981-09-17 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum sichtbarmachen von stationaeren waermeuebergangskoeffizientenfeldern auf photochemischem wege |
| US4385830A (en) * | 1980-11-26 | 1983-05-31 | Cornell Research Foundation, Inc. | Direct measurement of vorticity by optical probe |
| DE3110325A1 (de) * | 1981-03-17 | 1982-09-30 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur aufzeichnung von oertlichen grenzschicht-stromlinienrichtungen in fluessigen medien |
| US4774835A (en) * | 1986-11-13 | 1988-10-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for laminar boundary layer transition visualization in flight |
| GB8804176D0 (en) * | 1988-02-23 | 1988-03-23 | Secr Defence | Method of measuring shear stress in fluid flow & material therefor |
| US5070729A (en) * | 1990-12-03 | 1991-12-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Multi-colored layers for visualizing aerodynamic flow effects |
| US5359887A (en) * | 1992-08-03 | 1994-11-01 | Mc Donnell Douglas Corp | Pressure sensitive paint formulations and methods |
| US5512398A (en) * | 1995-02-16 | 1996-04-30 | Eastman Kodak Company | Diagnostic method for determining agitation levels in low volume thin tanks |
| US5544524A (en) * | 1995-07-20 | 1996-08-13 | The United States Of America As Represented By The Secretary Of The Navy | Apparatus and method for predicting flow characteristics |
| US5600060A (en) * | 1996-02-22 | 1997-02-04 | The United States Of America As Represented By The Secretary Of The Navy | Apparatus and method for computing unsteady flows by direct solution of the vorticity equation |
| DE10319943A1 (de) * | 2003-05-02 | 2004-11-18 | Ald Vacuum Technologies Ag | Verfahren zur Sichtbarmachung von Grenzflächenphänomenen an der Oberfläche eines Bauteils |
| US20060281186A1 (en) * | 2003-05-20 | 2006-12-14 | Sakura Color Products Corporation | Indicator composition |
| US11809794B2 (en) | 2019-10-28 | 2023-11-07 | Corcat, Inc. | System and method for simulating turbulence |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1460083A (en) * | 1921-12-27 | 1923-06-26 | Gen Electric | Recording signal |
| US2627600A (en) * | 1946-08-19 | 1953-02-03 | Robert H Rines | Method of and apparatus for producing visual likenesses with the aid of radio waves |
| US3357024A (en) * | 1966-01-20 | 1967-12-05 | James E Webb | Method of recording a gas flow pattern |
-
1971
- 1971-07-07 DE DE2133865A patent/DE2133865C3/de not_active Expired
-
1972
- 1972-06-07 CH CH842872A patent/CH575597A5/xx not_active IP Right Cessation
- 1972-06-21 GB GB2916572A patent/GB1390228A/en not_active Expired
- 1972-06-30 NL NL7209155A patent/NL7209155A/xx unknown
- 1972-07-05 SE SE7208852A patent/SE378305B/xx unknown
- 1972-07-06 AT AT581072A patent/AT318945B/de not_active IP Right Cessation
- 1972-07-06 FR FR7224552A patent/FR2145312A5/fr not_active Expired
- 1972-07-07 JP JP6811772A patent/JPS5517330B1/ja active Pending
- 1972-07-07 US US00269822A patent/US3787874A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1390228A (en) | 1975-04-09 |
| CH575597A5 (https=) | 1976-05-14 |
| NL7209155A (https=) | 1973-01-09 |
| DE2133865B2 (de) | 1974-03-21 |
| FR2145312A5 (https=) | 1973-02-16 |
| SE378305B (https=) | 1975-08-25 |
| US3787874A (en) | 1974-01-22 |
| JPS5517330B1 (https=) | 1980-05-10 |
| DE2133865A1 (de) | 1973-01-18 |
| AT318945B (de) | 1974-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 |