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  • Industrial Chemistry  (4)
  • Aerodynamics  (2)
  • 1955-1959
  • 1950-1954  (6)
  • 1951  (6)
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Keywords
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  • 1955-1959
  • 1950-1954  (6)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 23 (1951), S. 59-64 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die bisher vorliegenden Meßergebnisse für die Wärmeleitfähigkeit der wäßrigen Lösungen von Salzen, Säuren und Basen werden kritisch verglichen und in einheitlicher Form dargestellt. Auf Grund einfacher theoretischer Betrachtungen ist es möglich, diese wichtige Größe für zahlreiche noch nicht untersuchte Lösungen zuverlässig abzuschätzen.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 23 (1951), S. 465-469 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Wärmeleitfähigkeit der Gemische von Methyl-, Äthyl-, Normalpropyl- und Isopropylalkohol, Äthylen- und Propylenglykol, Glycerin und Aceton mit Wasser wurde in Abhängigkeit von der Konzentration und Temperatur gemessen. Die Ergebnisse werden in übersichtlichen Tabellen zusammengefaßt und mit den bereits vorliegenden Literaturwerten kritisch verglichen. Die von W. Kraus [10] beobachtete Anomalie im Temperaturverlauf der Wärmeleitfähigkeit von reinem Äthylen- bzw. Propylenglykol konnte nicht bestätigt werden.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 23 (1951), S. 321-324 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zur endgültigen Klärung der großen Widersprüche zwischen den Meßergebnissen verschiedener Autoren für die Wärmeleitfähigkeit organischer Flüssigkeiten wurden neue Absolutmessungen mit einer Kugelapparatur durchgeführt, die innerhalb der Meßgenauigkeit von etwa 1% zu einer Bestätigung der vom Verfasser früher mit anderen Apparaturen gefundenen Werte führten. Neue Messungen zwischen -80 und +80 °C für eine größere Anzahl von Flüssigkeiten ermöglichen, zusammen mit zuverlässigen Literaturwerten, im Sinne des Theorems der übereinstimmenden Zustände eine übersichtliche Darstellung der Abhängigkeit der Wärmeleitfähigkeit nicht assoziierter Flüssigkeiten von der reduzierten Temperatur.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 23 (1951), S. 368-369 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Mit der hier beschriebenen Apparatur kann man vor allem für Feinstrukturuntersuchungen einfach und billig eine Stabilisation erreichen, die wirksamer ist als die Stabilisationseinrichtung einer fabrikmäßig hergestellten Röntgenanlage ausländischer Herkunft.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2019-06-28
    Description: The performance of NACA 65-series compressor blade section in cascade has been investigated systematically in a low-speed cascade tunnel. Porous test-section side walls and for high-pressure-rise conditions, porous flexible end walls were employed to establish conditions closely simulating two-dimensional flow. Blade sections of design lift coefficients from 0 to 2.7 were tested over the usable angle-of-attack range for various combinations of inlet-flow angle. A sufficient number of combinations were tested to permit interpolation and extrapolation of the data to all conditions within the usual range of application. The results of this investigation indicate a continuous variation of blade-section performance as the major cascade parameters, blade camber, inlet angle, and solidity were varied over the test range. Summary curves of the results have been prepared to enable compressor designers to select the proper blade camber and angle of attack when the compressor velocity diagram and desired solidity have been determined.
    Keywords: Aerodynamics
    Type: NACA-TR-1368 , NACA-RM-L51G31
    Format: application/pdf
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  • 6
    Publication Date: 2019-07-11
    Description: An investigation was made in the Langley 300 MPH 7- by 10-foot tunnel to determine the aerodynamic characteristics of a flying-boat hull of a length-beam ratio of 15 in the presence of a wing. The investigation was an extension of previous tests made on hulls of length-beam ratios of 6, 9, and 12; these hulls were designed to have approximately the same hydrodynamic performance with respect to spray and resistance characteristics. Comparison with the previous investigation at lower length-beam ratios indicated a reduction in minimum drag coefficients of 0.0006 (10 peroent)with fixed transition when the length-beam ratio was extended from 12 to 15. As with the hulls of lower length-beam ratio, the drag reduction with a length-beam ratio of 15 occurred throughout the range of angle of attack tested and the angle of attack for minimum drag was in the range from 2deg to 3deg. Increasing the length-beam ratio from 12 to 15 reduced the hull longitudinal instability by an mount corresponding to an aerodynamic-center shift of about 1/2 percent of the mean aerodynamic chord of the hypothetical flying boat. At an angle of attack of 2deg, the value of the variation of yawing-moment coefficient with angle of yaw for a length-beam ratio of 15 was 0.00144, which was 0.00007 larger than the value for a length-beam ratio of 12.
    Keywords: Aerodynamics
    Type: NACA-RM-L6J24
    Format: application/pdf
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