[HTML][HTML] Review of measurement techniques for unsteady helicopter rotor flows

AD Gardner, CC Wolf, M Raffel - Progress in Aerospace Sciences, 2019 - Elsevier
The helicopter group at the DLR in Göttingen has been actively involved in the development
of measurement techniques for unsteady flows, particularly as they apply to the problems …

On the effect of rotational forces on rotor blade boundary-layer transition

A Weiss, AD Gardner, T Schwermer, C Klein, M Raffel - AIAA Journal, 2019 - arc.aiaa.org
Laminar-turbulent boundary-layer transition is investigated on the suction side of Mach-
scaled helicopter rotor blades in climb and analyzed in view of the effect of rotational forces …

Imaging phosphor thermometry from T= 20 C to 450 C using the time-domain intensity ratio technique

G Sutton, A Greenen, B Roebuck… - … Science and Technology, 2019 - iopscience.iop.org
We present an imaging phosphor thermometry system using the time-domain intensity ratio
technique and demonstrate surface temperature measurements that are traceable to ITS-90 …

[HTML][HTML] 跨声速叶栅叶片快速响应PSP 测量研究

张雪, 衷洪杰, 王猛, 赵民 - 空气动力学学报, 2019 - html.rhhz.net
开展了快速响应PSP 技术在高速叶栅中的非定常测量应用研究. 使用压力-
温度校准系统与激波管对FIB 类快速响应PSP 涂料的温度压力和时间响应特性进行了测量 …

Experimental investigation of rotor tip film cooling at an axial turbine with swirling inflow using pressure sensitive paint

M Wilhelm, HP Schiffer - International Journal of Turbomachinery …, 2019 - mdpi.com
Rotor tip film cooling is investigated at the Large Scale Turbine Rig, which is a 1.5-stage
axial turbine rig operating at low speeds. Using pressure sensitive paint, the film cooling …

Novel ground test applications of high-frequency pressure sensitive paint

KM Casper, S Spitzer, N Glenn, R Schultz - AIAA Aviation 2019 Forum, 2019 - arc.aiaa.org
Two novel and challenging applications of high-frequency pressure-sensitive paint were
attempted for ground testing at Sandia National Labs. Blast tube testing, typically used to …