Thermal and Stability Analysis of Formed Platelet in Platelet Transpiration Cooling

Abstract:

Platelet transpiration cooling is one of the key techniques for the developing reusable launch vehicle. The thinner of the platelet, the better effect plate transpiration will gain. Meanwhile, the platelet unit may get wrinkled if thermal stress is large enough. One-dimensional non-equilibrium model is adopted to analyze the heat transfer characteristics of platelet transpiration cooling. The assumption of rectangular plate with three-side simple supported and one-side free is taken and Galerkin method is applied for analyzing the stability of platelet unit. Analysis indicates that as the heat transfer intensity increases, the thermal soaking depth decreases, while more coolant is needed to keep the heated wall at design temperature. Also, the critical thickness for the platelet not to get wrinkled gets larger with the increasing thermal soaking depth.

• Periodical: Applied Mechanics and Materials (Volumes 52-54)
• Pages: 859-864
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.52-54.859
• Online since: March 2011
• Authors: Yong Fa Hou, Wei Qiang Liu
• Keywords: Galerkin's Method, Non-Equilibrium Model, Platelet Transpiration Cooling, Stability Analysis, Thermal Wrinkling

References

[1] B.A. Robbers, B.J. Anderson, et al. Platelet Devices-Limited Only by One's Imagination[R]. AIAA 2006-4542.

[2] Mueggenburg H H, Hidahl J W, Kessler E L, et al. Platelet actively cooled thermal management devices[R]. AIAA 1992-3127.

DOI: 10.2514/6.1992-3127

[3] Yang W H. The basic theory and application research of platelet transpiration cooling technique [D]. Shanghai: Shanghai Jiao Tong University, (2003) (In Chinese).

[4] Liu W Q, Sun W S, Zhang F, In: Acta Aeronautica Et Astronautica Sinica, edited by Li T B, volume 27 (2006) (In Chinese).

[5] Zhang F, Liu W Q, In: Acta Aeronautica Et Astronautica Sinica, edited by Li T B, volume 28 (2007) (In Chinese).

[6] Liu W Q. A research on transpiration cooling for the platelet thrust chamber of liquid propellant rocket engine [D]. Changsha: National University of Defense Technology, (1999) (In Chinese).

[7] Wang J K, Zhang Z M: Lamella's bend and stability (Beijing: National Defense Industry Press, China 1980) (In Chinese).