Author: Robert T. Swann
Publisher:
ISBN:
Category : Aerodynamic heating
Languages : en
Pages : 50
Book Description
Differential equations governing the transient response of thermal protection systems to a hyperthermal environment are presented. These equations are expanded into finite-difference equations which are suitable for numerical solution. The equations provide for three layers of different materials, the first two of which may have moving boundaries. Concentrated heat sinks, such as metallic structures, may be located at the back surfaces of the second or third layers or of both layers. The analysis was developed primarily for charring ablators but is also applicable to impregnated ceramic, subliming, and heat-sink thermal protection systems. The principal difficulty encountered in numerical analysis of charring ablators is the extensive computer time required to obtain solutions. Provision is made in the numerical equations to introduce options which reduce computer time. The errors resulting from these options under various conditions are discussed. Good agreement is obtained between numerical results and exact solutions.
One-dimensional Numerical Analysis of the Transient Response of Thermal Protection Systems
Author: Robert T. Swann
Publisher:
ISBN:
Category : Aerodynamic heating
Languages : en
Pages : 50
Book Description
Differential equations governing the transient response of thermal protection systems to a hyperthermal environment are presented. These equations are expanded into finite-difference equations which are suitable for numerical solution. The equations provide for three layers of different materials, the first two of which may have moving boundaries. Concentrated heat sinks, such as metallic structures, may be located at the back surfaces of the second or third layers or of both layers. The analysis was developed primarily for charring ablators but is also applicable to impregnated ceramic, subliming, and heat-sink thermal protection systems. The principal difficulty encountered in numerical analysis of charring ablators is the extensive computer time required to obtain solutions. Provision is made in the numerical equations to introduce options which reduce computer time. The errors resulting from these options under various conditions are discussed. Good agreement is obtained between numerical results and exact solutions.
Publisher:
ISBN:
Category : Aerodynamic heating
Languages : en
Pages : 50
Book Description
Differential equations governing the transient response of thermal protection systems to a hyperthermal environment are presented. These equations are expanded into finite-difference equations which are suitable for numerical solution. The equations provide for three layers of different materials, the first two of which may have moving boundaries. Concentrated heat sinks, such as metallic structures, may be located at the back surfaces of the second or third layers or of both layers. The analysis was developed primarily for charring ablators but is also applicable to impregnated ceramic, subliming, and heat-sink thermal protection systems. The principal difficulty encountered in numerical analysis of charring ablators is the extensive computer time required to obtain solutions. Provision is made in the numerical equations to introduce options which reduce computer time. The errors resulting from these options under various conditions are discussed. Good agreement is obtained between numerical results and exact solutions.
Numerical Analysis of the Transient Response of Advanced Thermal Protection Systems for Atmospheric Entry
Author: Robert T. Swann
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 44
Book Description
Equations for the transfer of heat through thermal protection shields are derived in finite difference form. These equations are applicable to charring ablators, impregnated ceramics, subliming ablators, heat sinks, and insulating materials and have been programmed for solution on a high speed digital computer.
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 44
Book Description
Equations for the transfer of heat through thermal protection shields are derived in finite difference form. These equations are applicable to charring ablators, impregnated ceramics, subliming ablators, heat sinks, and insulating materials and have been programmed for solution on a high speed digital computer.
One-dimensional Numerical Analysis of the Transient Thermal Response of Multilayer Insulative Systems
Author: Claud M. Pittman
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 52
Book Description
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 52
Book Description
One-dimensional Numerical Analysis of the Transient Thermal Response of Multilayer Insulative Systems
Author: Claud M. Pittman
Publisher:
ISBN:
Category :
Languages : en
Pages : 46
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 46
Book Description
Numerical Analysis of the Transient Response of Ablating Axisymmetric Bodies Including the Effects of Shape Change
Author:
Publisher:
ISBN:
Category : Ablation (Aerothermodynamics)
Languages : en
Pages : 52
Book Description
Publisher:
ISBN:
Category : Ablation (Aerothermodynamics)
Languages : en
Pages : 52
Book Description
NASA Technical Note
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 772
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 772
Book Description
Numerical Analysis of the Transient Response of an Axisymmertic Ablative Char Layer Considering Internal Flow Effects
Author: Claud M. Pittman
Publisher:
ISBN:
Category :
Languages : en
Pages : 68
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 68
Book Description
Space Simulation
Author: Joseph C. Richmond
Publisher:
ISBN:
Category : Space environment
Languages : en
Pages : 988
Book Description
Publisher:
ISBN:
Category : Space environment
Languages : en
Pages : 988
Book Description
NBS Special Publication
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 996
Book Description
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 996
Book Description
Government-wide Index to Federal Research & Development Reports
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 980
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 980
Book Description