An analytical approach to the uniqueness problem of hot-wire probes to measure simultaneously three velocity components
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The uniqueness range of hot-wire probes to simultaneously measure all three velocity components is analysed analytically. Expressions defining the uniqueness cone half-angle are presented for triple as well as for quadruple sensor configurations. Using these expressions the influence of the main probe parameters on the uniqueness cone, i.e. the number of sensors and their orientation, the effective angle and the pitch and yaw coefficients, are analysed. Different types of probes are compared and optimum parameters are proposed. The same analysis is valid for complex vorticity probes configured as combinations of triple and quadruple sensor arrays.
Keywords:hot-wire probes / velocity components / heat sensor
Source:Measurement Science and Technology, 2004, 15, 9, 1848-1854
- IOP Publishing Ltd, Bristol