Investigation of a New Formulation Reference Fluid for Use in Aerodynamic Acceptance Evaluation of Aircraft Ground Deicing and Anti-icing Fluids PDF Download
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Author: Arlene Beisswenger Publisher: ISBN: Category : Airplanes Languages : en Pages : 26
Book Description
"A new formulation fluid is proposed for use as the reference fluid for aerodynamic testing and qualification of commercial aircraft deicing and anti-icing fluids. The new formulation fluid is to replace the currently used reference fluid, MIL-A-8243D, which allows for large variation in its composition. The MIL-A-8243D fluid, manufactured up to 2005, is no longer commercially available because its chief user, the United States Military, now uses qualified commercial Society of Automotive Engineers deicing and anti-icing fluids. The new formulation fluid, a mixture of 68% propylene, 20% tripropylene glycol, and 12% demineralized water, is chemically compatible with current glycol-based fluids. Furthermore, it can be produced more simply and accurately than the more complex military (MIL) formulation it replaces. Having the same viscosity as MIL-A-8243D, the new formulation reference has been found to be essentially aerodynamically indistinguishable from the MIL fluid in validation test runs in which both fluids were tested with a candidate fluid for high-speed ramp aerodynamic standard qualification. The measurements and validation testing accomplished in the present study support the adoption of the new fluid for use as the reference fluid for the high-speed ramp standard aerodynamic qualification test in place of the current MIL fluid."--P. [ii].
Author: Arlene Beisswenger Publisher: ISBN: Category : Airplanes Languages : en Pages : 26
Book Description
"A new formulation fluid is proposed for use as the reference fluid for aerodynamic testing and qualification of commercial aircraft deicing and anti-icing fluids. The new formulation fluid is to replace the currently used reference fluid, MIL-A-8243D, which allows for large variation in its composition. The MIL-A-8243D fluid, manufactured up to 2005, is no longer commercially available because its chief user, the United States Military, now uses qualified commercial Society of Automotive Engineers deicing and anti-icing fluids. The new formulation fluid, a mixture of 68% propylene, 20% tripropylene glycol, and 12% demineralized water, is chemically compatible with current glycol-based fluids. Furthermore, it can be produced more simply and accurately than the more complex military (MIL) formulation it replaces. Having the same viscosity as MIL-A-8243D, the new formulation reference has been found to be essentially aerodynamically indistinguishable from the MIL fluid in validation test runs in which both fluids were tested with a candidate fluid for high-speed ramp aerodynamic standard qualification. The measurements and validation testing accomplished in the present study support the adoption of the new fluid for use as the reference fluid for the high-speed ramp standard aerodynamic qualification test in place of the current MIL fluid."--P. [ii].
Author: Arlene Beisswenger Publisher: ISBN: Category : Airplanes Languages : en Pages : 0
Book Description
"A new formulation fluid is proposed for use as the reference fluid for aerodynamic testing and qualification of commercial aircraft deicing and anti-icing fluids. The new formulation fluid is to replace the currently used reference fluid, MIL-A-8243D, which allows for large variation in its composition. The MIL-A-8243D fluid, manufactured up to 2005, is no longer commercially available because its chief user, the United States Military, now uses qualified commercial Society of Automotive Engineers deicing and anti-icing fluids. The new formulation fluid, a mixture of 68% propylene, 20% tripropylene glycol, and 12% demineralized water, is chemically compatible with current glycol-based fluids. Furthermore, it can be produced more simply and accurately than the more complex military (MIL) formulation it replaces. Having the same viscosity as MIL-A-8243D, the new formulation reference has been found to be essentially aerodynamically indistinguishable from the MIL fluid in validation test runs in which both fluids were tested with a candidate fluid for high-speed ramp aerodynamic standard qualification. The measurements and validation testing accomplished in the present study support the adoption of the new fluid for use as the reference fluid for the high-speed ramp standard aerodynamic qualification test in place of the current MIL fluid."--Page [ii].
Author: G-12ADF Aircraft Deicing Fluids Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This document describes methods that are known to have been used by aircraft manufacturers to evaluate aircraft aerodynamic performance and handling effects following application of aircraft ground deicing/anti-icing fluids ("fluids"), as well as methods under development. Guidance and insight based upon those experiences are provided, including: Similarity Analyses Icing Wind Tunnel Tests Flight Tests Computational Fluid Dynamics and other Numerical AnalysesThis document also describes: The history of evaluation of the aerodynamic effects of fluids The effects of fluids on aircraft aerodynamics The testing for aerodynamic acceptability of fluids for SAE and regulatory qualification performed in accordance with AS5900NOTE: This document is applicable for fluids that are "qualified" to (i.e., have passed) the tests and other standards prescribed in AMS1424 or AMS1428 and are properly used in accordance with ARP4737.NOTE: There are topics of potential interest not discussed in this document, such as re-hydrated gel residues - see Reference documents (2.2).CAUTION: The results and conclusions of the various test programs described herein should not be assumed to be universally applicable. This ARP documents methods and processes that may be utilized by aircraft manufacturers (or type certificate holders, researchers, or others) to evaluate the aerodynamic effects of SAE-qualified aircraft ground deicing/anti-icing fluids ("fluids") when applied to specific aircraft.
Author: National Aeronautics and Space Administration (NASA) Publisher: Createspace Independent Publishing Platform ISBN: 9781723192272 Category : Languages : en Pages : 136
Book Description
A wind tunnel investigation of the effect of aircraft ground deicing/anti-icing fluids on the aerodynamic characteristics of a Boeing 737-200ADV airplane was conducted. The test was carried out in the NASA Lewis Icing Research Tunnel. Fluids tested include a Newtonian deicing fluid, three non-Newtonian anti-icing fluids commercially available during or before 1988, and eight new experimental non-Newtonian fluids developed by four fluid manufacturers. The results show that fluids remain on the wind after liftoff and cause a measurable lift loss and drag increase. These effects are dependent on the high-lift configuration and on the temperature. For a configuration with a high-lift leading-edge device, the fluid effect is largest at the maximum lift condition. The fluid aerodynamic effects are related to the magnitude of the fluid surface roughness, particularly in the first 30 percent chord. The experimental fluids show a significant reduction in aerodynamic effects. Runyan, L. James and Zierten, Thomas A. and Hill, Eugene G. and Addy, Harold E., Jr. Glenn Research Center AERODYNAMIC CHARACTERISTICS; BOEING AIRCRAFT; DEICING; ICE FORMATION; NEWTONIAN FLUIDS; RHEOLOGY; WIND TUNNEL TESTS; AERODYNAMIC DRAG; GROUND WIND; LEADING EDGES; LIFT; SURFACE ROUGHNESS...
Author: David L. Kohlman Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 0
Book Description
The aerodynamic effects of aircraft ground deicing/anti-icing fluids is a topic that has received increasing attention in recent years as the use of these fluids becomes more widespread and sophisticated. An important consideration with respect to the use of these fluids is the effect of residual fluid remaining on the aircraft during the takeoff roll and initial climb. A flight test program to determine these effects on the takeoff and climb performance for two general aviation aircraft was conducted. The flight tests were performed in Topeka, Kansas, and Duluth, Minnesota. Results indicate that the presence of the deicing/anti-icing fluids on the aerodynamic surfaces of the test airplanes can reduce aerodynamic lift and increase liftoff airspeeds. However, the flight test pilots reported no obvious changes in the performances of handling characteristics of the aircraft.
Author: G-12ADF Aircraft Deicing Fluids Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This specification covers a deicing/anti-icing material in the form of a fluid. The specification has been revised to note that Type I fluids shall not contribute to the creation of mold (3.1). In addition, a WSET minimum is now required in the thermal stability (3.3.2.2) and hard water stability (3.3.3) tests and a note has been added to 3.3.3 to indicate that additional testing with softer water may be required. A new section 3.5.3.1 has been added to institute maximum final fluid thickness requirements in the high speed ramp and low speed ramp aerodynamic tests.
Author: Arlene Beisswenger
Author: Arlene Beisswenger
Author: Arlene Beisswenger
Author: L. James Runyan
Author: G-12ADF Aircraft Deicing Fluids
Author: National Aeronautics and Space Administration (NASA)
Author: David L. Kohlman
Author: Jean-Louis Laforte
Author: Université du Québec à Chicoutimi. Anti-icing Materials International Laboratory
Author: G-12ADF Aircraft Deicing Fluids
Author: