Model parameters

Model parameters describe different aspects of the plume model. All of these parameters have default values which are used unless specified otherwise.

model.beta_n

Type:

number

Default:

0.34

Entrainment rate coefficient in the normal (across-jet) direction. The coefficient is specified relative to the top-hat radius of the jet.

The default value is from Lee and Chu (2003).

model.beta_t

Type:

number

Default:

0.17

Entrainment rate coefficient in the tangential (along-jet) direction. The coefficient is specified relative to the top-hat radius of the jet.

The default value is from Lee and Chu (2003).

model.mass_n

Type:

number

Default:

1.0

Added mass coefficient when gravity acts orthogonal to the jet direction.

The default value is from Lee and Chu (2003).

model.mass_t

Type:

number

Default:

0.18

Added mass coefficient when gravity acts tangential to the jet direction.

The default value is from Lee and Chu (2003).

Bibliography

Lee, Joseph H. W., and Chu, Vincent H. (2003). Turbulent Jets and Plumes. Springer New York, NY. doi:10.1007/978-1-4615-0407-8.