Simultaneous measurement of temperature, density and velocity in gas-flows by modulated photoluminescence


Autoria(s): Liu JB; 刘长胜; Shi JR
Data(s)

1989

Resumo

A novel possibility to determine the temperature, density and velocity simultaneously in gas flows by measuring the average value, amplitude of modulation and phase shift of the photoluminescence excited by a temporally or spatially modulated light source is investigated. Time-dependent equations taking the flow, diffusion, excitation and decay into account are solved analytically. Different experimental arrangements are proposed. Measurements of velocity with two components, and temporal and spatial resolutions in the measurements are investigated. Numerical examples are given for N z with biacetyl as the seed gas. Practical considerations for the measurements and the relation between this method and some existing methods of lifetime measurement are discussed.

Identificador

http://dspace.imech.ac.cn/handle/311007/39604

http://www.irgrid.ac.cn/handle/1471x/5148

Idioma(s)

英语

Fonte

Experiments In Fluids.1989,8(3-4):199-208

Tipo

期刊论文