Publication

Coupling CFD and chemical kinetics: examples Fire II and TITAN aerocapture

Pénélope Leyland
2009
Conference Papers

Abstract

The investigation of the thermochemical field around planetary reentry capsules, and their experimental scaled models is made by coupling aerothermodynamic simulation of the corresponding flow field to a library of chemical kinetics of the specific atmosphere. As examples, the FIRE II reentry and TITAN aerocapture entry which have been studied in collaboration with the Hypersonics centre of the University Queensland, where scaled geometries axe tested in their expansion tube facilities. Examples are given over equivalent sphere geometries to test the models of the kinetics, and complete capsule configurations for Titan are presented with simplified models.

Official source

https://infoscience.epfl.ch/entities/publication/83a0020c-bcea-4e24-b701-c3f35582f6a5

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Pénélope Leyland
2009
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/83a0020c-bcea-4e24-b701-c3f35582f6a5

About this result

Related concepts (32)

Atmospheric entry

Atmospheric entry is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. There are two main types of atmospheric entry: uncontrolled entry, such as the entry of astronomical objects, space debris, or bolides; and controlled entry (or reentry) of a spacecraft capable of being navigated or following a predetermined course. Technologies and procedures allowing the controlled atmospheric entry, descent, and landing of spacecraft are collectively termed as EDL.

Chemical kinetics

Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a reaction occurs but in itself tells nothing about its rate. Chemical kinetics includes investigations of how experimental conditions influence the speed of a chemical reaction and yield information about the reaction's mechanism and transition states, as well as the construction of mathematical models that also can describe the characteristics of a chemical reaction.

Sphere

A sphere () is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. Formally, a sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the centre of the sphere, and r is the sphere's radius. The earliest known mentions of spheres appear in the work of the ancient Greek mathematicians. The sphere is a fundamental object in many fields of mathematics. Spheres and nearly-spherical shapes also appear in nature and industry.

Related publications (32)

Coupling CFD and chemical kinetics: examples Fire II and TITAN aerocapture

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