Radiative and Convective Heat Transfer over Ablating Composite Flat Surface in Hypersonic Flow Regime.
Abstract
A computer program was developed for predicting the convective and radiative heat transfer to the surface of a flat with hypersonic boundary layer flow and with injection of absorbing, emitting and scattering particles due to ablation. The program was used to study the heat transfer rate as a function of wall and freestream temperatures and Mach number of the flow. The results were also obtained to study the effect of injection of absorbing and scattering particles in the boundary layer on the heat flux as a function of wall and free-stream temperatures, Mach numbers and particle radiative properties. It is seen that, if there is a strong external incident radiation, the injection of scattering particles reduces the radiative flux by as much as 75% depending on the scattering coefficient of the particles and the particle density in the flow. A review of the published literature shows that the data of the radiative properties of particles is lacking. Also the data of the radiative properties of modern composite materials surfaces is not available. Keywords: Radiative; Convective; Heat transfer; Absorption; Scattering; Hypersonic flow; Ablation; Radiative properties.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 22, 1987
- Accession Number
- ADA182119
Entities
People
- D. Y. Goswami