Space external heat flux calculation method for carrier rocket

• Main Authors: MA XIAOLIANG, YANG HUJUN, XU SHANSHU, SHEN DAN, HE WEI, SU HONG, WU YANSEN, DU TAO, LI HUANGLI
• Format: Patent
• Language: English
• Published: 11.03.2015
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a space external heat flux calculation method for a carrier rocket. The method comprises the following steps that: (1) initial moment coordinate system conversion is carried out to obtain an initial conversion matrix; (2) instantaneous coordinate system conversion is carried out to obtain an instantaneous conversion matrix; (3) the included angle cosine of a sunlight vector, an earth infrared radiation vector, an earth light sun radiation vector and an instantaneous rocket body coordinate system is determined; and (4) an environment virtual mapping surface is built, and the rocket body surface space external heat flux is determined. The method has the advantages that the orbital dynamics and the thermodynamics are combined; the Monte Carlo method radiation heat flux calculation is used as the basis; the space external heat flux on the complicated surface of a rocket body can be finely determined; the problems of shielding and multiple times of reflection among the surfaces are effectively solved; and the coordinate conversion and mathematical calculation flow processes are simplified.