摘要
在小型风洞上，测量了叉排型短扰流柱排内的压力场分布，得到了叉排型抗流柱排内压力场的详细分布情况，发现在扰流柱排壁面上压力较高，沿高度方向到对称面，截面上压力逐渐减小。
This was a research program supported by Rolls - Royce plc, U. K.A detailed experimental investigation of static pressure distributions of the channel with five row cy1indrical staggered short pin fin array (Fig. 2) has been carried out in a suction tyPe wind tunnel. It was found that the static pressure of the now was high on the endwall of the channel and it decreased to the minimum at the haif heights of pin fins. The static pressure variations of pin fin surfaces in direction normal to endwail occurred mainly at the angular location of 30° to 120° from the leading edges of cylindrical pin fins in third and fifth rows (Fig. 6). The patterns of the static pressure distribution, including high pressure zones in front of the pin fins, low pressure zones in the wakes and minimum pressure zones on pin fin surfaces, measured at different heights above endwall, were similar.We observed that the pressure distributions on pin fin surfaces were quite different for different rows. No significant pressure recovery was measured on the first and second rows.However, obvious recovery of pressure was found on the other three rows.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
1998年第2期163-168,共6页
Journal of Northwestern Polytechnical University
