Unsteady Pressure Field Investigation of an Axial Fan--Blade Unsteady Pressure Field Measurement

The Unsteady Temperature Field in a Turbine Blade Cooling Channel

The unsteady velocity and temperature fields are measured in a straight smooth and rib roughened square duct, representative of a stator cooling channel. The mainstream Reynolds number is 3 10. Single cold and hot wire probes as well as a dual hot/cold wire probe are used for this purpose. The experimental results are compared to the predictions from FINE, a commercial software package develope...

An algorithm to estimate unsteady and quasi-steady pressure fields from velocity field measurements.

We describe and characterize a method for estimating the pressure field corresponding to velocity field measurements such as those obtained by using particle image velocimetry. The pressure gradient is estimated from a time series of velocity fields for unsteady calculations or from a single velocity field for quasi-steady calculations. The corresponding pressure field is determined based on me...

An algorithm to estimate unsteady and quasi - steady pressure fields from velocity field 1 measurements

Unsteady Pressure and Velocity Measurements in Pumps

The objective of this paper is to report the state-of-the-art of unsteady pressure measurements in pumps. Though optical techniques seem in some aspects more attracting, unsteady pressure measurements can give a detailed insight in static as well as dynamic operating behaviour of pumps. A brief description of wall mounted pressure transducers and of probes fitted with miniature pressure transdu...

ACOUSTIC FIELD IN UNSTEADY MOVING MEDIAy

D of point P in a meridian plane for an accelerating, decelerating and accelerating supersonic speed starting from rest at = 0. The subsonic and supersonic intervals are 0; 1) and (1; 5] with the deceleration in (1:7; 3:05). The critical curve J has a local maximum at point K 1 , a minimum at K 2 and then a maximum at K 3. The curve J partitions D into