Springer

Estimation of the surface stress from the streamwise pressure gradient: The Kármán Integral Momentum Equation revisited

0
- By: , ,

Courtesy of Springer

A method is developed to estimate the stress at the surface in a portable wind tunnel for wind erosion studies. The boundary layer height and the pressure gradient are used in a simple expression from the Kármán Integral Momentum Equation. Values of friction velocity u * are within 10% of experimental values obtained through correlation techniques, including measurements of differential pressures with the Murdoch Turbulence Probe MTP and the X-wire, hot-wire anemometer XWA. Wind velocity and stress profiles reveal logarithmic trends and a constant stress layer near the surface in the DAWA portable wind tunnel. Realignment of the statistics with the mean wind is essential.

Customer comments

No comments were found for Estimation of the surface stress from the streamwise pressure gradient: The Kármán Integral Momentum Equation revisited. Be the first to comment!