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double | CnLinearLimitAngle |
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double | CnLinear |
| | = 4*pi/180 Angle (in radians) below which a linear model for the normal force coefficient Cn applies (Ersdal and Faltinsen, 2006, Table 3).
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double | CnTurb |
| | = 0.068 Constant in the expression for the linear model of the normal force coefficient Cn (Ersdal and Faltinsen, 2006, Table 3)
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double | CnLam |
| | = 0.8 Constant in the expression for the modified cross-flow principle for the normal force coefficient Cn (Ersdal& Faltinsen, 2006, Eqs. 27 & 28 and Table 3).
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double | TurbLimit |
| | = 1.15 Constant in the expression for the modified cross-flow principle for the normal force coefficient Cn (Ersdal& Faltinsen, 2006, Eqs. 27 & 28 and Table 3).
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double | LamLimit |
| | = 3.4*10^5 Value defining upper limit for turbulent boundary layer (Ersdal& Faltinsen, 2006, Eqs. 27 & 28 and Table 3), accounting for the 'real' Reynolds number due to the twines having an angle to the effective hydrodynamic velocity and thus increasing the hydrodynamic length.
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double | Ct_nominal |
| | = 2.0*10^5 Value defining lower limit for laminar boundary layer (Ersdal& Faltinsen, 2006, Eqs. 27 & 28 and Table 3), accounting for the 'real' Reynolds number due to the twines having an angle to the effective hydrodynamic velocity and thus increasing the hydrodynamic length.
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double | CnKnots_nominal |
| | = 0.01 Approximate tangential drag force coefficient for cylinders (Ersdal, 2004; White, 1972, 1988, 1991; Ackroyd, 1982). Curvature of cylinder implies increased tangential friction force compared to flat plate results. Relevant values for Ct for cylinders typically varies from 0.008 to 0.015. To be multiplied by PI due to the typical expression for the drag force.
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double | DampingCoeff |
| | = 1.15 Knot drag force coefficient by approximation (Fredheim and Enerhaug, personal communication). To be multiplied by PI and knot radius squared due to the typical expression for the drag force.
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double | BarD |
| | A coefficient used to calculate rotational and structural damping.
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double | KnotD |
| | Diameter of twines.
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double | BarL0 |
| | Diameter of knots.
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double | NodeAPos_mesh [2] |
| | Length of mesh bar.
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double | NodeBPos_mesh [2] |
| | Position of node A in net mesh (u,v) coordinates (Priour, 1997, 1999, 2001, 2003, 2005)
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double | NodeCPos_mesh [2] |
| | Position of node B in net mesh (u,v) coordinates (Priour, 1997, 1999, 2001, 2003, 2005)
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double | TwineEA |
| | Position of node C in net mesh (u,v) coordinates (Priour, 1997, 1999, 2001, 2003, 2005)
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1.9.4