Mathematical Modeling of the Physicochemical Properties of a Heat-Shielding Material from Highly Filled Elastomers

2021 ◽  
Vol 15 (5) ◽  
pp. 880-887
Author(s):  
V. F. Kablov ◽  
V. L. Strakhov ◽  
V. O. Kaledin ◽  
N. A. Keybal
Keyword(s):  
Mathematical Modeling ◽  
Physicochemical Properties ◽  
Filled Elastomers ◽  
Heat Shielding ◽  
Shielding Material

scholarly journals MATHEMATICAL MODELING OF DESTRUCTION OF FIBERGLASS-BASED THERMAL-PROTECTION MATERIAL

2020 ◽  
pp. 71-78
Author(s):  
D.Ya. Barinov ◽  
◽  
P.S. Marakhovskij ◽  
A.V. Zuev ◽  
◽  
...  
Keyword(s):  
Thermal Protection ◽  
Experimental Studies ◽  
Thermophysical Characteristics ◽  
Capsule Type ◽  
Typical Trajectory ◽  
Material Sample ◽  
Heat Shielding ◽  
Physical And Mathematical Models ◽  
The Mathematical Model ◽  
Shielding Material

The paper proposes physical and mathematical models of heat and mass transfer in fiberglass used as a destructive heat-shielding material for capsule type descent vehicles. To provide the mathematical model with the initial data, experimental studies of the thermophysical characteristics of the material and the kinetic parameters of destruction have been carried out. There has been made a simulation of the destruction of a material sample during descent in the Earth's atmosphere along a typical trajectory for various areas of the heat shield; as a result, the dependences of temperatures on the flight time and the depth of the coked layer have been determined.

Study of the Porous Heat-Shielding Material Properties under Conditions of Abrupt Change in Pressure, Pressure Surge

2017 ◽  
Vol 60 (4) ◽  
pp. 653-657
Author(s):  
V. A. Afanas’ev ◽  
A. B. Agul’nik ◽  
V. P. Monakhova ◽  
O. V. Tushavina
Keyword(s):  
Material Properties ◽  
Abrupt Change ◽  
Pressure Surge ◽  
Heat Shielding ◽  
Shielding Material

MATHEMATICAL MODELING OF HEAT-SHIELDING CHARACTERISTICS OF SAND FREE LIGHTWEIGHT CONCRETE WALL STONES

2013 ◽  
Vol 3 (4) ◽  
pp. 82-86 ◽  
Author(s):  
Yu. S VYTChIKOV ◽  
I. G BELYaKOV
Keyword(s):  
Mathematical Modeling ◽  
Software Package ◽  
Lightweight Concrete ◽  
Theoretical Research ◽  
Three Dimension ◽  
Concrete Wall ◽  
Protective Properties ◽  
Thermal Exchange ◽  
Thermal Fields ◽  
Heat Shielding

The article reports on theoretical research results of sand free lightweight concrete wall stones thermal protective properties. Calculated values of resistance referred to stone wall masonrys thermal exchange on cement-sand and warm mortars are got using the method worked out by the article writersCalculation of three-dimension thermal fields in the external wall fragment was performed by using the method of finite elements provided in ANSIS software package.

Heat-shielding material based on ceramic reinforcing fillers

2012 ◽  
Vol 69 (3-4) ◽  
pp. 122-124
Author(s):  
S. S. Solntsev ◽  
V. A. Rozenenkova ◽  
N. A. Mironova ◽  
S. V. Gavrilov
Keyword(s):  
Reinforcing Fillers ◽  
Heat Shielding ◽  
Shielding Material

Modeling Physicochemical Properties of Mold Slag

2014 ◽  
Vol 59 (1) ◽  
pp. 149-155 ◽  
Author(s):  
D. Kalisz
Keyword(s):  
Mathematical Modeling ◽  
Surface Tension ◽  
Computer Simulation ◽  
Physicochemical Properties ◽  
Calcium Fluoride ◽  
Slag Composition ◽  
Structural Model ◽  
Slag Viscosity ◽  
Basic Slag ◽  
Mold Slag

Abstract This paper deals with the mathematical modeling of physicochemical properties of mold slag such as: viscosity, surface tension, temperature liquidus, basicity. Computer simulation of slag viscosity was made by the Nakamoto structural model. The effect of addition CaF2 to the mold slag was estimated by using of Urbain model. The results were compared with the results of the experiment. Surface tension for the basic slag composition: CaO - SiO2 - Al2O3 was calculated with using Nakamoto model. The results of calculations indicate that the content of the SiO2 lowers the surface tension, but increase the content of CaO and Al2O3 in the slag increases its value. Calcium fluoride (CaF2) reduces the viscosity of the slag. The increase in temperature reduces the viscosity of the slag, simultaneously increasing the surface tension.

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