# Yield Stress#

Yield Stress = CONSTANT <float> [M/Lt2]


## Description / Usage#

This card is used to specify the model for the yield stress parameter, $$τ_y$$, of the BINGHAM and HERSCHEL_BULKLEY model options of the Liquid Constitutive Equation card. Definitions of the input parameters are as follows:

 CONSTANT Name of the model for the yield stress. - the value of the yield stress, τy, which has the dimensions of stress, in whatever units are consistent with the problem and marks the transition from solid-like to fluid-like behavior for the Bingham-Carreau-Yasuda model.

## Examples#

The following is a sample card that sets the yield stress to 100:

Yield Stress = CONSTANT 100.


## Technical Discussion#

See Description/Usage for Liquid Constitutive Equation card.