The following options for heat transfer coefficients are available in the fiber model to compute the exchange of heat between fibers and surrounding flow:
- const-htc
A constant value for the heat transfer coefficient in SI units can be specified.
- kase-matsuo-1
A heat transfer coefficient based on a model from Kase and Matsuo [291] that considers pure parallel flow, see Equation 22–31.
(22–31)
- kase-matsuo-2
A heat transfer coefficient based on a model from Kase and Matsuo [291] that also considers cross flow, see Equation 22–32. Refer to Momentum Exchange for definitions of the variables below.
(22–32)
- gampert
A heat transfer coefficient based on a model from Gampert [195].
Gampert provided analytical and numerical solutions for laminar axisymmetric flow of a moving cylinder in stationary air including strong curvature effects in the boundary layer, [195]. The drag coefficient and the Nusselt number are shown as dimensionless groups in Figure 22.2: Dimensionless Groups of Drag Coefficient and Nusselt Number. This correlation is recommended for laminar flows.
- user-defined
A heat transfer coefficient that you specify in a user-defined function (UDF). See User-Defined Functions (UDFs) for the Continuous Fiber Model for more information on using UDFs in the fiber model.