Base Bleed

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Base Bleed

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Author : Kenneth K. Kuo
language : en
Publisher: Taylor & Francis
Release Date : 1991

Base Bleed written by Kenneth K. Kuo and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Science categories.

Includes papers presented at a symposium, which represent the state-of-the-art in the development of base bleed projectiles and related research, and are from recognized experts in the field. The papers have undergone a thorough review process.

The Effect Of Base Bleed On The Drag And Magnus Characteristics Of A Rotating Body Of Revolution

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Author : Frank J. Regan
language : en
Publisher:
Release Date : 1972

The Effect Of Base Bleed On The Drag And Magnus Characteristics Of A Rotating Body Of Revolution written by Frank J. Regan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Body of revolution categories.

Base bleed is a technique whereby all or part of the boundary layer is 'bled' from the rear portion of a projectile to the base region. Passage from the model's surface to the base region is by means of concentric cylindrical passageways. The purpose of base bleed is to reduce the Magnus moment on overlong spinning bodies of revolution and to reduce the base drag. Both analytic and experimental results are presented. The boundary layer is represented by means of the momentum thickness.

Effect Of Base Bleed And Terminal Fairings On The Performance Of Exhaust Nozzle Afterbody Combinations At Mach Numbers Of 1 93 2 55 And 3 05

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Author : Harry T. Norton
language : en
Publisher:
Release Date : 1960

Effect Of Base Bleed And Terminal Fairings On The Performance Of Exhaust Nozzle Afterbody Combinations At Mach Numbers Of 1 93 2 55 And 3 05 written by Harry T. Norton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with categories.

Base Bleed Projectile Simulation For Long Range Large Caliber Artillery Modeling

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Author :
language : en
Publisher:
Release Date : 2019

Base Bleed Projectile Simulation For Long Range Large Caliber Artillery Modeling written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.

Trajectory model -- Artillery -- Base bleed -- Base burn -- Injection rate -- Projectile -- Fring table -- Large calibre gun -- Ballistic coefficient -- Ballistics -- Drag coefficient -- Axisymmetric body aerodynamic.

Projectile Base Bleed Technology Part 1 Analysis And Results

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Author :
language : en
Publisher:
Release Date : 1992

Projectile Base Bleed Technology Part 1 Analysis And Results written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

Detailed finite rate chemistry models for H2 and H2-CO combustion have been incorporated into a Navier-Stoke computer code and applied to flow field simulation in the base region of an M864 base burning projectile. Results without base injection were obtained using a low Reynolds number k-e. turbulence model and several mixing length turbulence models The results with base injection utilized only the Baldwin-Lomax model for the projectile forebody and the Chow wake mixing model downstream of the projectile-base. A validation calculation was performed for a supersonic hydrogen-air burner using an H2, reaction set which is a subset of the H2-CO reaction set developed for the base combustion modeling. The comparison with the available experimental data was good, and provides a level of validation for the technique and code developed. Projectile base-injection calculations were performed for a flat base M864 projectile at M. - 2. Hot air injection, H2 injection and H2-CO injection were modeled, and computed results show reasonable trends in the base pressure increase (base drag reduction), base corner expansion and downstream wake closure location.

Effects Of Base Bleed Flow On Base Region Temperatures And Pressures Of Several Simulated Missile Afterbody Configurations Mach Number Range Of 0 8 To 2 0

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Author :
language : en
Publisher:
Release Date : 1960

Effects Of Base Bleed Flow On Base Region Temperatures And Pressures Of Several Simulated Missile Afterbody Configurations Mach Number Range Of 0 8 To 2 0 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with categories.

Flow In The Base Region Of Axisymmetric And Two Dimensional Configurations

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Author : Milton A. Beheim
language : en
Publisher:
Release Date : 1961

Flow In The Base Region Of Axisymmetric And Two Dimensional Configurations written by Milton A. Beheim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Axial flow categories.

A theoretical and experimental investigation has been conducted of the pressure distribution on the surface of either a circular cylinder or a truncated cone located within the base region of another circular cylinder at Mach number 2. A similar analysis of pressure distribution was made for rearward-facing two-dimensional steps, and theoretical results were compared with experimental results of earlier investigations. Theoretical base-pressure ratios of two-dimensional steps agreed well with experimental results; however, as a result of the simplifying assumptions made for axisymmetric configurations, only a range of values for theoretical base-pressure ratio could be calculated within which the experimental results were expected to occur. The data generally followed the trends predicted by the theory, and deviations apparently could be explained.

International Symposium On Special Topics In Chemical Propulsion Base Bleed Held In Athens Greece On November 23 24 25 1988

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Author :
language : en
Publisher:
Release Date : 1988

International Symposium On Special Topics In Chemical Propulsion Base Bleed Held In Athens Greece On November 23 24 25 1988 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

Partial contents: Base Bleed Technology in perspective; Chemistry and Ignition/Combustion Behaviour of Base Bleed Propellants and Igniter Materials; Base Bleed Solid Propellants; Study of the Pyrotechnic Composition Used as the Base Bleed Propellant; Ignition and Combustion Behaviour of MTV Igniter Materials for Base Bleed Applications; Development and Production of Base Bleed Grain for 155 mm Guns; Models and Performance Calculations of Base Bleed Projectiles; A Review of the Fluid Dynamic Aspect of the Effect of Base Bleed; Navier-Stokes Computations of Base Bleed Projectiles; Computer Codes for Ballistic Performance Calculations of Base Bleed Propellant Grain; A Model of the Axial Drag Coefficient for Base Bleed Projectiles; Effect of Grain Characteristics on Range of Artillery Projectiles with Base Bleed; A Two-Phase Base Bleed Base Combustion Model and its Calculation; Trajectory Modeling for Base Bleed Projectiles; Experimental and Ballistic Performance of Base Bleed Projectiles; and Gas Generators; Base Injection and Combustion at Mach 3; A study of Drag Reduction by Base Bleed at Subsonic Speeds; and Solid Fuel Ramjet Self-Propelled Gun Launched Projectiles. Keywords: Solid propellants, Guns propellants, Thermochemical propulsion, Rocket assisted projectiles.

The Effect Of Base Bleed On The Drag And Magnus Characteristics Of A Rotating Body Of Revolution

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Author : Frank J. Regan
language : en
Publisher:
Release Date : 1972

The Effect Of Base Bleed On The Drag And Magnus Characteristics Of A Rotating Body Of Revolution written by Frank J. Regan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with categories.

Base bleed is a technique whereby all or part of the boundary layer is 'bled' from the rear portion of a projectile to the base region. Passage from the model's surface to the base region is by means of concentric cylindrical passageways. The purpose of base bleed is to reduce the Magnus moment on overlong spinning bodies of revolution and to reduce the base drag. Both analytic and experimental results are presented. The boundary layer is represented by means of the momentum thickness.

Effects Of Base Bleed And Supersonic Nozzle Injection On Base Pressure

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Author :
language : en
Publisher:
Release Date : 1975

Effects Of Base Bleed And Supersonic Nozzle Injection On Base Pressure written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.

Base pressure tests were conducted on an ogive-cylinder configuration at Mach numbers 2.5, 3.0 and 3.5. Measurements were obtained while bleeding air into the base region through a variety of base-bleed configurations. For two of the configurations, air was injected into the base through a supersonic sustainer type nozzle simultaneously with base bleed injection. The mass flow rates through the sustainer nozzle and base bleed openings were varied at each Mach number. The results show a net decrease in base drag due to base bleed and a net increase due to supersonic injection whether or not the bleed air and the supersonic air are introduced simultaneously.