Combined Differential Interferometry and Long-range μPIV measurements of a temperature driven boundary layer flow

[摘要] In the present study Differential Interferometry and Long-range μPIV are successfully combined for a benchmark experiment of an accelerating temperature driven boundary layer flow. Spatial resolutions of 405 pm for the interference and 101 pm for the μPIV measurements could be achieved. The results of the combined measurements are compared with results of numerical simulations. Temperature and velocity profiles are compared with theoretical values and a relation between Nusselt number and Grashof number could be worked out.

[发布机构] Ruhr-Universitat Bochum, Department of Fluid Machinery, Universitatsstraße 150, Bochum; 44801, Germany^1

[效力级别] 力学 [学科分类] 力学，机械学

[关键词] Benchmark experiments;Combined measurements;Differential interferometry;Long ranges;Measurements of;Spatial resolution;Theoretical values;Velocity profiles