Gas Surface Interactions Lab

New paper in International Journal of Heat and Mass Transfer!

January 1st, 2016

The radiative heat transfer inside a low-density carbon fiber insulator is analyzed using a three- dimensional direct simulation model. A robust procedure is presented for the numerical calculation of the geometric configuration factor to compute the radiative energy exchange processes among the small discretized surface areas of the fibrous material. The methodology is applied to a polygonal mesh of a fibrous insulator obtained from three-dimensional microscale imaging of the real material. The anisotro- pic values of the radiative conductivity are calculated for that geometry. The results yield both directional and thermal dependence of the radiative conductivity. The combined value of radiative and solid conduc- tivity are compared to experimental data available in the literature, and show excellent agreement.

Nouri, N., Panerai, F., Tagavi, K. A., Mansour, N. N., and Martin, A., “Evaluation of the anisotropic radiative conductivity of a low-density carbon fiber material from realistic microscale imaging,” Interna- tional Journal of Heat and Mass Transfer, Vol. 95, 2016, pp. 535–539.

NASA Awards UK’s Martin $500,000 for Orion Heat Shield Research

November 30th, 2015

New paper in Carbon!

September 25th, 2015

[1] Ferguson, J. C., Panerai, F., Bailey, S. C. C., Lachaud, J. R., Martin, A., and Mansour, N. N., “Modeling the oxidation of low-density carbon fiber material based on micro-tomography,” Carbon, Vol. 96, January 2016, pp. 57–65.

3D Animations Provide New Insights into Thermal Protection Materials

May 7th, 2015

New paper!

May 2nd, 2015

New paper just published in the AIAA Journal of Thermophysics and Heat Transfer!

[1] Davuluri, R. S. C., Zhang, H., and Martin, A., “Numerical study of spallation phenomenon in an arc-jet environment,” Journal of Thermophysics and Heat Transfer, vol. 29, no. 3, 2015.

Two new journal papers in the Journal of Thermophysics and Heat Transfer

April 19th, 2015

[1] Martin, A. and Boyd, I. D., “Modeling of heat transfer attenuation by ablative gases during the Stardust re-entry,” Journal of Thermophysics and Heat Transfer, Vol. 29, No. 3, July 2015.
DOI: 10.2514/1.T4202
[2] Weng, H. and Martin, A., “Numerical Investigation of Thermal Response Using Orthotropic Charring Ablative Material,” Journal of Thermophysics and Heat Transfer, Vol. 29, No. 3, July 2015.
DOI: 10.2514/1.T4576

Dr. Francesco Panerai on IXV

February 11th, 2015

Dr. Francesco Panerai, Research Associate in the research group, is being interview for the IXV re-entry demonstrator:

Two new papers!

January 12th, 2015

Two new papers are available. The first from the AIAA SciTech2015 conference:

Weng, H. and Martin, A., “Numerical Investigation of Geometric Effects of Stardust Return Capsule Heat Shield,” 53rd AIAA Aerospace Sciences Meeting, AIAA Paper 2015-0211, Kissimmee, FL, January 5-9 2015.
DOI: 10.2514/6.2015-0211

The second from the Journal of Thermophysics and Heat Transfer:

Martin, A., Boyd, I. D., Cozmuta, I., and Wright, M. J., “Kinetic rates for gas phase chemistry of phenolic based carbon ablator decomposition in atmospheric air,” Journal of Thermophysics and Heat Transfer, 2015.
DOI: 10.2514/1.T4184

New paper in Int. J. of Heat and Mass Trans.!

January 9th, 2015

A new paper by Nima Nouri and Alexandre Martin has been published in the International Journal of Heat and Mass Transfer:

Student award

December 5th, 2014

Congratulation to Justin Cooper who just won the 1st place in the 2014 Oswald Research and Creativity Competition, Physical & Engineering Sciences category for his paper titled: Flux Matching scheme for the Computation of Accurate Boundary Conditions on a Moving Mesh !!!