TY - GEN
T1 - Acoustic Doppler Velocimeters (ADV) Performance Curves (APCs) sampling the flow turbulence
AU - García, Carlos Marcelo
AU - Cantero, Mariano I.
AU - Niño, Yarko
AU - Garcia, Marcelo Horacio
PY - 2004/12/1
Y1 - 2004/12/1
N2 - The capability of Acoustic Doppler Velocimeters (ADV) to resolve flow turbulence is analyzed by mean of a new tool denoted ADV Perfomance Curves (APCs). These curves can be used to define optimal flow and sampling conditions for turbulence measurements using an ADV. To generate these curves, a conceptual model is developed which simulates both, different flow conditions (flow component) and the instrument operation (instrument component). Different scenarios (ranges of flow conditions and sampling frequencies) are simulated using the conceptual model to generate several synthetic time series of water velocity and corresponding sampled signals. For the sake of comparison, the main turbulence statistics parameters of the synthetically generated sampled and non-sampled time series are plotted in dimensionless form; these plots are called APCs. The performance of the developed tools is validated using experimental results. Using the APCs a new criterion is proposed to perform ADV measurements with good resolution of the flow turbulence. In cases where this criterion can not be satisfied these curves can be used to make the corrections.
AB - The capability of Acoustic Doppler Velocimeters (ADV) to resolve flow turbulence is analyzed by mean of a new tool denoted ADV Perfomance Curves (APCs). These curves can be used to define optimal flow and sampling conditions for turbulence measurements using an ADV. To generate these curves, a conceptual model is developed which simulates both, different flow conditions (flow component) and the instrument operation (instrument component). Different scenarios (ranges of flow conditions and sampling frequencies) are simulated using the conceptual model to generate several synthetic time series of water velocity and corresponding sampled signals. For the sake of comparison, the main turbulence statistics parameters of the synthetically generated sampled and non-sampled time series are plotted in dimensionless form; these plots are called APCs. The performance of the developed tools is validated using experimental results. Using the APCs a new criterion is proposed to perform ADV measurements with good resolution of the flow turbulence. In cases where this criterion can not be satisfied these curves can be used to make the corrections.
UR - http://www.scopus.com/inward/record.url?scp=23844558993&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=23844558993&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:23844558993
SN - 0784407371
T3 - Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management
SP - 2404
EP - 2413
BT - Proceedings of the 2004 World Water and Environmetal Resources Congress
A2 - Sehlke, G.
A2 - Hayes, D.F.
A2 - Stevens, D.K.
T2 - 2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management
Y2 - 27 June 2004 through 1 July 2004
ER -