Velocity Contour Weighting Method. I: Algorithm Development and Laboratory Testing

Velocity Contour Weighting Method. I: Algorithm Development and Laboratory Testing

An algorithm is developed for real-time estimation of the cross-sectional average velocity of a channel flow by using an upwardlooking pulsed wave acoustic Doppler velocity meters (ADVM). The Velocity Contour Weighting Method (VCWM) is applicable to gradu­ ally varied flows in prismatic channels and requires little to no calibration. VCWM estimates the average velocity as a weighted average of ...

Velocity Contour Weighting Method. II: Evaluation in Trapezoidal Channels and Roughness Sensitivity

The Velocity Contour Weighting Method (VCWM) was developed in Part I to accurately estimate the cross-sectional average velocity of a prismatic channel flow using acoustic Doppler velocity meter (ADVM) measurements of centerline velocity. Here, the VCWM is validated by its successful application to 25 different concrete-lined trapezoidal channels used for irrigation water delivery. At each site...

Development and Evaluation of a Confidence-Weighting Computerized Adaptive Testing

The purpose of this study was to examine whether the efficiency, precision, and validity of computerized adaptive testing (CAT) could be improved by assessing confidence differences in knowledge that examinees possessed. We proposed a novel polytomous CAT model called the confidence-weighting computerized adaptive testing (CWCAT), which combined a confidence-weighting scoring scheme with the gr...

DTU PMU laboratory development - Testing and validation

Surface Pressure Contour Prediction Using a GRNN Algorithm

A new approach based on a Generalized Regression Neural Network (GRNN) has been proposed to predict the planform surface pressure field on a wing-tail combination in low subsonic flow. Extensive wind tunnel results were used for training the network and verification of the values predicted by this approach. GRNN has been trained by the aforementioned experimental data and subsequently was used ...