Computational Fluid Dynamics Investigation of Counterflow Ejection Effects on a Body moving with High Speed
Zheng Y.Y, Ahmed N.A.
Available Online December 2012.
- https://doi.org/10.2991/mems.2012.52How to use a DOI?
- counterflow jet ejection, heat, turbulence model
- A major problem associated with the process of slowing down a body moving with high speed, such as during reentry of a space craft, is the extreme heat generated. Sink and ablation cooling are commonly used but the cost of such heat protection systems is very high. Thus heat dissipation has been an area of extensive research. The simulation work presented in this paper is attempted to replenish flow/ thermal field reaction with a greater details of the flow field affected by the deployment of counterflow jet ejection in supersonic freestream and test the suitability of different turbulence models. An Apollo command re-entry module has been employed and it has been subjected to a free stream Mach number of 3.0. ANSYS, as the computational fluid dynamics tool has been performed in this two-dimensional numerical flow simulation. Effects of counterflow jet injection effects and its interaction with the oncoming flow through the frontal stagnation point of the test module are discussed. Results obtained from different turbulence models are compared and analyzed. The overall outcomes are highly promising. Within those turbulence models, shear stress transport model (SST) seems to be preferred for such simulation. It also appears that substantial heat reduction on the body is possible using appropriate strength counter flow jet.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Zheng Y.Y AU - Ahmed N.A. PY - 2012/12 DA - 2012/12 TI - Computational Fluid Dynamics Investigation of Counterflow Ejection Effects on a Body moving with High Speed BT - Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012) PB - Atlantis Press SP - 191 EP - 194 SN - 1951-6851 UR - https://doi.org/10.2991/mems.2012.52 DO - https://doi.org/10.2991/mems.2012.52 ID - Y.Y2012/12 ER -