A new form of porous laminated plate (PLP), model 161, was put forth, which had 50% pin-fin quantity increasing compared with its conventional counterpart, model 141. The 2 models were studied on their flow resistance and heat transfer characteristics by experiment and numerical simulation. A thermal radiation heating facility was employed to maintain the heat flux on the PLP upper external surface, and the actual heating rate was calculated by the enthalpy difference between the inlet and outlet of the coolant. The external surface temperatures were arithmetically averaged. It was found that the model 161 had 20% less flow resistance and 5% more heat transfer than the model 141. The numerical simulation results were in good agreement with the experiment for the flow resistance. However, the discrepancy for the heat transfer was significant and a maximum deviation of 30% in Nusselt number existed, although the variation patterns were quite the same.
Nealy D A, Reider S B. Evaluation of laminated porous wall material for combustor liner cooling [J]. ASME Journal of Engineering for Power, 1980, 102: 268-276
Mongia H C, Reider S B. Allsion combustion research and development activities . AIAA 28521402, 1985
Essman D J, Vogel R E, Tomlinson J G. TF41/Lamilloy accelerated mission test[J].Journal of Aircraft.1983, 20(1):70-75
���»�, ȫ����. ���ṹ�ڲ��������Ե��о�[J]. ����ѧ��,2003, 24(5): 405-410 Yu Xinhua, Quan Dongliang. Investigation of the internal heat transfer characteristics of lamilloy[J]. Acta Aeronautica et Astronautica Sinica, 2003, 24 (5): 405-410
Sweeney P C, Rhodes J F. An infrared technique for evaluating turbine airfoil cooling designs [J].ASME Journal of Turbomachinery.2001, 122:170-177