Evaluating the Stolt-stretch parameter |

Let be the logarithm of the velocity change . Then an explicit expression for factor is found according (17) as

In the case of a small ', which corresponds to a small depth or a small velocity gradient, . In the case of a large , monotonically approaches zero. Equation (20) can be a useful rule of thumb for a rough estimation of .

Evaluating the Stolt-stretch parameter |

2014-03-29