A Comparison Of Solid Fuel Ramjet Flow Characteristics And Combustion Behavior
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| Author | : Brian Andrew Binn |
| Publisher | : |
| Total Pages | : 83 |
| Release | : 1979 |
| Genre | : Aeronautics |
| ISBN | : |
Download A Comparison of Solid Fuel Ramjet Flow Characteristics and Combustion Behavior Book in PDF, Epub and Kindle
An experimental investigation was conducted to determine if there is a relationship between the cold flow characteristics of velocity, pressure distribution, and turbulence intensity and the reacting flow performance and combustion characteristics of a solid fuel ramjet. The effects of configuration and air flow changes on the above characteristics were examined. Average regression rates and combustion efficiencies were not significantly affected by changes in configuration. These variations in test conditions significantly affected the center-line turbulence intensity but not the near-wall turbulence intensity in cold flow. The use of bypass resulted in decreases in regression rate and efficiencies for all cases. Attainable performance appears to be most strongly related to near-wall turbulence intensity/mixing and to the amount of fuel reaching the aft mixing chamber. (Author).
| Author | : |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1979 |
| Genre | : |
| ISBN | : |
Download A Comparison of Solid Fuel Ramjet Flow Characteristics and Combustion Behavior Book in PDF, Epub and Kindle
An experimental investigation was conducted to determine if there is a relationship between the cold flow characteristics of velocity, pressure distribution, and turbulence intensity and the reacting flow performance and combustion characteristics of a solid fuel ramjet. The effects of configuration and air flow changes on the above characteristics were examined. Average regression rates and combustion efficiencies were not significantly affected by changes in configuration. These variations in test conditions significantly affected the center-line turbulence intensity but not the near-wall turbulence intensity in cold flow. The use of bypass resulted in decreases in regression rate and efficiencies for all cases. Attainable performance appears to be most strongly related to near-wall turbulence intensity/mixing and to the amount of fuel reaching the aft mixing chamber. (Author).
| Author | : Brian A. Binn |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1981 |
| Genre | : Airplanes |
| ISBN | : |
Download Combustion Behavior of Solid Fuel Ramjets, Vol. 1. Correlation of Reacting and Non-reacting Flow Characteristics Book in PDF, Epub and Kindle
An experimental investigation was conducted to determine the relationship between the cold flow characteristics of velocity, pressure distribution, and turbulence intensity and the reacting flow performance and combustion characteristics of a solid fuel ramjet. The effects of configuration and air flow changes on the above characteristics were examined. Average regression rates and combustion efficiencies were not significantly affected by changes in configuration. These variations in test conditions significantly affected the centerline turbulence intensity but not the near-wall turbulence intensity in cold flow. Near-wall turbulence profiles in cold flow were found to correlate with the fuel regression profiles in reacting flows. The use of bypass resulted in decreases in regression rate and efficiencies for all cases. (Author).
| Author | : Brian A. Binn |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1981 |
| Genre | : |
| ISBN | : |
Download Combustion Behavior of Solid Fuel Ramjets. Volume I. Correlation of Reacting and Non-Reacting Flow Characteristics Book in PDF, Epub and Kindle
An experimental investigation was conducted to determine the relationship between the cold flow characteristics of velocity, pressure distribution, and turbulence intensity and the reacting flow performance and combustion characteristics of a solid fuel ramjet. The effects of configuration and air flow changes on the above characteristics were examined. Average regression rates and combustion efficiencies were not significantly affected by changes in configuration. These variations in test conditions significantly affected the centerline turbulence intensity but not the near-wall turbulence intensity in cold flow. Near-wall turbulence profiles in cold flow were found to correlate with the fuel regression profiles in reacting flows. The use of bypass resulted in decreases in regression rate and efficiencies for all cases. (Author).
| Author | : Winston Elliott Scott |
| Publisher | : |
| Total Pages | : 80 |
| Release | : 1980 |
| Genre | : Aeronautics |
| ISBN | : |
Download An Investigation of the Reacting and Non-Reacting Flow Characteristics of Solid Fuel Ramjets Book in PDF, Epub and Kindle
An investigation was conducted to determine the relationship between the non-reacting and the reacting flow characteristics of solid fuel ramjets. Polymethylmethacrylate fuel grains were burned in a ramjet motor on a thrust stand. Combustion efficiency, regression rate profile and pressures were determined for the reacting flows and compared to profiles obtained in non-reacting flows for velocity, pressure, and near-wall and centerline turbulence intensity. Near-wall turbulence profiles were in agreement with the fuel regression profiles obtained in reacting flows. Combustion efficiency was found to be a strong function of mixture ratio. Near-wall mixing significantly increased fuel regression rate. (Author).
| Author | : Michael E. Metochianakis |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1981 |
| Genre | : Airplanes |
| ISBN | : |
Download Combustion Behavior of Solid Fuel Ramjets, Vol. II. Effects of Fuel Properties and Fuel-air Mixing on Combustion Efficiency Book in PDF, Epub and Kindle
Fundamental SFRJ fuel properties were determined using a DTA and a gas chromatograph for both high and low heating rates. The performance of these fuels was then measured under various operating conditions and test geometries. Fuel properties were found to have some effect on the obtainable combustion efficiency but much larger effects could be induced by the flow conditions (induced mixing near the fuel surface, bypass air, etc.). (Author).
| Author | : |
| Publisher | : |
| Total Pages | : 702 |
| Release | : 1995 |
| Genre | : Aeronautics |
| ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, Epub and Kindle
| Author | : Michael E. Metochianakis |
| Publisher | : |
| Total Pages | : 54 |
| Release | : 1981 |
| Genre | : |
| ISBN | : |
Download Combustion Behavior of Solid Fuel Ramjets. Volume II. Effects of Fuel Properties and Fuel-Air Mixing on Combustion Efficiency Book in PDF, Epub and Kindle
Fundamental SFRJ fuel properties were determined using a DTA and a gas chromatograph for both high and low heating rates. The performance of these fuels was then measured under various operating conditions and test geometries. Fuel properties were found to have some effect on the obtainable combustion efficiency but much larger effects could be induced by the flow conditions (induced mixing near the fuel surface, bypass air, etc.). (Author).
| Author | : Anastasios S. Pilos |
| Publisher | : |
| Total Pages | : 74 |
| Release | : 1983 |
| Genre | : Aeronautics |
| ISBN | : |
Download Sensitivity Analysis of Predicted Reacting Flow Characteristics in Solid Fuel Ramjet Combustors Book in PDF, Epub and Kindle
This study was a sensitivity analysis of a computer code (based upon CHAMPION/2/E/FIX), used at the Naval Postgraduate School mainly to model the flow within Solid Fuel Ramjets. The purpose of the study was to make the code simpler and more accurate by reducing the required CPUs time and/or improving the accuracy of predictions. (Author).
| Author | : |
| Publisher | : |
| Total Pages | : 992 |
| Release | : |
| Genre | : Science |
| ISBN | : |
Download Technical Abstract Bulletin Book in PDF, Epub and Kindle
