11th International Workshop on Radiation of High Temperature Gases for Space Missions

Session

Radiation modeling and simulation

21 Sept 2026, 17:25

The Angevin Castle (Mola Di Bari)

190. A Coupled Post-Shock Nonequilibrium Flow and Spectral Radiation Solver for Stagnation-Point Radiative Heating: FIRE II Validation with Error Structure Analysis

Jaejeong Na (Aerospace Integrated Wind Tunnel Center, Seoul National University, South Korea)

Radiation Modeling and Simulation

TOPIC:
Experimental and numerical modelling improvements of radiative heat transfer: refinement, verification, validation and comparison for space object re-entry simulation tools
BACKGROUND

Radiative heating dominates the total heat load for vehicles entering planetary atmospheres above 10 km/s. The FIRE II flight experiment [1] measured stagnation-point radiative fluxes of 1100–1530...

223. A generalized gas–surface interaction boundary condition unifying finite-rate surface chemistry and catalytic recombination in CFD++

Dr Bruno Lopez (Metacomp Technologies Inc.)

Radiation Modeling and Simulation

Background of the study

During atmospheric entry, the interaction of the dissociated, thermochemically non-equilibrium boundary-layer gas with the vehicle surface strongly influences the wall composition, the surface heat flux, and both the convective and radiative heating experienced by the thermal protection system (TPS). Surface catalycity governs the recombination of atomic species...

220. Coupled Flow-Radiation Sensitivity and Uncertainty Analysis of the Dragonfly Capsule

Timothy Aiken (University of Colorado)

Radiation Modeling and Simulation

Abstract is attached.

208. Optical emission spectroscopy for laser-heated graphite in expansion tube

Hiroki Hirano (Tokyo Metropolitan University)

Ablative-Radiative TPS and Meteors

I. Introduction　
Ablation experiments have traditionally been conducted using plasma wind tunnels. Plasma wind tunnels can generate high-temperature flows for relatively long durations and are suitable for measuring recession rates and internal temperature histories of ablative materials. However, because the test gas is generated as a plasma flow, its degree of dissociation can be higher...

216. Radiative Heating on the Mars Sample Retrieval Lander: Simulation, Validation, and Uncertainty

Kaelan Hansson (AMA Inc at NASA Ames)

Radiation Modeling and Simulation

The Mars Sample Retrieval lander mission was designed to be the first stage of NASA's Mars Sample Return program. It would land a stationary payload to process samples collected by the Perseverance rover and place them on board a rocket for their journey to Earth. In total, the lander would be the largest entry mass and volume ever placed on the Martian surface. Furthermore, the entry speed,...

224. Spectral Model Reduction for Overlapping Radiative Systems during Hypersonic Entry

Amal Sahai (AMA Inc. at NASA Ames Research Center)

Radiation Modeling and Simulation

Objective
The radiation field arising from photophysical and photochemical processes can significantly influence energy transfer and thermochemical composition in a range of scientific and engineering applications. The primary challenge while determining radiative transfer stems from the rapid fluctuations in emission/absorption properties with respect to frequency. Fundamental radiative...