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69 results for “icinganalysis”
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"the ideal flow field ahead of a ribbon is not a very satisfactory representation of the actual flow field in front of a rectangular body"
NACA-TN-3658, "Impingement of Water Droplets on a Rectangular Half Body in a Two-Dimensional Incompressible Flow Field"
Summary
Water-drop impingement on a rectangular body is calculated...
https://icinganalysis.com/impingement-on-other-surfaces.html
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Review of the Cylinders thread so far
From: Conclusions of the Cylinder Thread
Data from the post-NACA era are used to resolve open questions
#AircraftIcing #Histodons
https://icinganalysis.com/conclusions-of-the-cylinder-thread.html -
Review of the Cylinders thread so far
From: Conclusions of the Cylinder Thread
Data from the post-NACA era are used to resolve open questions
#AircraftIcing #Histodons
https://icinganalysis.com/conclusions-of-the-cylinder-thread.html -
"a method has been developed ... to determine the droplet size distribution of the impinging cloud"
From: NACA-TN-3338, "A Dye-Tracer Technique for Experimentally Obtaining Impingement Characteristics of Arbitrary Bodies and a Method for Determining Droplet Size Distribution"
A pioneering test method is described, and a drop size measurement analysis is proposed.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tn-3338.html -
"a method has been developed ... to determine the droplet size distribution of the impinging cloud"
From: NACA-TN-3338, "A Dye-Tracer Technique for Experimentally Obtaining Impingement Characteristics of Arbitrary Bodies and a Method for Determining Droplet Size Distribution"
A pioneering test method is described, and a drop size measurement analysis is proposed.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tn-3338.html -
"... the effect on final results of droplets that do not freeze completely on the cylinders"
From: NACA-TR-1215, "Impingement of Cloud Droplets and Procedure for Measuring Liquid-Water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method. "1
Conditions where not all water drops freeze are considered.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tr-1215.html -
"... the effect on final results of droplets that do not freeze completely on the cylinders"
From: NACA-TR-1215, "Impingement of Cloud Droplets and Procedure for Measuring Liquid-Water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method. "1
Conditions where not all water drops freeze are considered.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tr-1215.html -
"... the effect on final results of droplets that do not freeze completely on the cylinders"
From: NACA-TR-1215, "Impingement of Cloud Droplets and Procedure for Measuring Liquid-Water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method. "1
Conditions where not all water drops freeze are considered.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tr-1215.html -
"... the effect on final results of droplets that do not freeze completely on the cylinders"
From: NACA-TR-1215, "Impingement of Cloud Droplets and Procedure for Measuring Liquid-Water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method. "1
Conditions where not all water drops freeze are considered.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tr-1215.html -
"The meteorological data obtained with the multicylinder method are the only data available for the design of ice-protection equipment for aircraft"
From: NACA-RM-E53D23, "Procedure for Measuring Liquid-Water Content and Droplet Sizes in Super-cooled Clouds by Rotating Multicylinder Method"1
Detailed procedures for the use of multicylinders are described.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-rm-e53d23.html -
"The meteorological data obtained with the multicylinder method are the only data available for the design of ice-protection equipment for aircraft"
From: NACA-RM-E53D23, "Procedure for Measuring Liquid-Water Content and Droplet Sizes in Super-cooled Clouds by Rotating Multicylinder Method"1
Detailed procedures for the use of multicylinders are described.
#AircraftIcing #Histodons
https://icinganalysis.com/naca-rm-e53d23.html -
"For most practical problems involving measurements of droplet impingement on cylinders, the compressibility effect may be ignored."
From: NACA-TN-2903, "Impingement of Cloud Droplets on Aerodynamic Bodies as Affected by Compressibility of Air Flow Around the Body"
The effect of the compressibility of air on the water-drop impingement calculations is found to be "negligible".
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tn-2903.html -
"For most practical problems involving measurements of droplet impingement on cylinders, the compressibility effect may be ignored."
From: NACA-TN-2903, "Impingement of Cloud Droplets on Aerodynamic Bodies as Affected by Compressibility of Air Flow Around the Body"
The effect of the compressibility of air on the water-drop impingement calculations is found to be "negligible".
#AircraftIcing #Histodons
https://icinganalysis.com/naca-tn-2903.html -
GMI North Star (Modified DC-4)
Modified for icing flight test with a large test airfoil and several icing instrument. Operated by the Canada National Research Council, circa 1951.More info at Pettit, K. G.: "'The Rockcliffe Ice Wagon' and its role in Canadian icing research." Publ. R. Met. Soc. Canad. Branch, Toronto 2 (1951).
http://cmosarchives.ca/RMS/r0205.pdf -
Lockheed 12A with added experimental ice protection equipment, circa 1946
from Rodert: "REVIEW OF NACA RESEARCH ON THE THERMAL ICE-PREVENTION SYSTEM" in
Anon., "Aircraft Ice Protection", the report of a symposium held April 28-30, 1969, by the FAA Flight Standards Service -
Consolidated XB-24 equipped with an experimental ice protection system, circa 1946.
More info at https://www.nasa.gov/specials/NACAfrom Rodert, Lewis A.: "REVIEW OF NACA RESEARCH ON THE THERMAL ICE-PREVENTION SYSTEM" in
Anon., "Aircraft Ice Protection", the report of a symposium held April 28-30, 1969, by the FAA Flight Standards Service -
Fairchild Monoplane (FC-2?) modified for icing flight test.
From NACA-TR-403, "Ice Prevention by means of Engine Exhaust Heat and Technical Study of Heat Transmission from a Clark Y Airfoil", 1931
#icinganalysis #aircrafticing
#aircraft #histodons #aerospace -
Curtis C-46 , modified for icing flight test.
From NACA-TN-1472, "The Calculation of the Heat Required for Wing Thermal Ice Prevention in Specified Icing Conditions", 1947
https://icinganalysis.github.io/naca-tn-1472.html
#aircrafticing #icinganalysis #aircraft #histodons #aerospace
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Vought VE-7, modified for icing flight test research.
A small test airfoil is visible, left of center in the photo.
From NACA-TN-313, "The Formation of Ice upon Airplanes in Flight", 1929
https://icinganalysis.github.io/naca-tn-313.html
#aircrafticing #icinganalysis #aircraft #histodons #aerospace
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"an irregular shape is developed due to the ice formation, which is ruinous to the aerodynamic efficiency of the airfoils"
Ice Shapes and Their Effects
https://icinganalysis.github.io/ice-shapes-and-their-effects.html
#aircraft #aircrafticing #icinganalysis #historyofscienceandtechnology
#histodons #aerospace -
"an irregular shape is developed due to the ice formation, which is ruinous to the aerodynamic efficiency of the airfoils"
Ice Shapes and Their Effects
https://icinganalysis.github.io/ice-shapes-and-their-effects.html
#aircraft #aircrafticing #icinganalysis #historyofscienceandtechnology
#histodons #aerospace -
I write about the (US) National Advisory Committee on Aeronautics (NACA) aircraft icing publications, 1918 to 1959. This is a lesser-known area of the history of science and technology.
While my blog posts are technical, I will post here some of the interesting quotes and photos that I find.
The NACA images are Public Domain, so use them as you wish.#introductions #aircraft #aircrafticing #icinganalysis #historyofscienceandtechnology
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"It has been shown that the temperature of the surface of the wing in conditions of icing can be predicted with considerable exactitude from the temperatures measured in clear air."
Icing Thermodynamics
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Calculating icing water drop trajectories with a mechanical analog.
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Calculating icing water drop trajectories with a mechanical analog.
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Calculating icing water drop trajectories with a mechanical analog.
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Calculating icing water drop trajectories with a mechanical analog.
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Calculating icing water drop trajectories with a mechanical analog.
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ING analyzes US-UK trade deal, suggesting it doesn't signal broader US tariff retreat, while potentially increasing pressure on China
#YonhapInfomax #INGAnalysis #USTariffs #UKTradeAgreement #AutoTariffs #ChinaPressure #Economics #FinancialMarkets #Banking #Securities #Bonds #StockMarket
https://en.infomaxai.com/news/articleView.html?idxno=62458 -
ING analyzes US-UK trade deal, suggesting it doesn't signal broader US tariff retreat, while potentially increasing pressure on China
#YonhapInfomax #INGAnalysis #USTariffs #UKTradeAgreement #AutoTariffs #ChinaPressure #Economics #FinancialMarkets #Banking #Securities #Bonds #StockMarket
https://en.infomaxai.com/news/articleView.html?idxno=62458