Base class for all wave pressure solvers. More...

Inheritance diagram for vtb::core::Wave_pressure_solver< T >:

Public Types
using	panel_type = Ship_hull_panel< T, 3 >

using	panel_array = std::vector< panel_type >

using	grid3 = Grid< T, 3 >

using	grid4 = Grid< T, 4 >

using	array3 = Array< T, 3 >

using	array4 = Array< T, 4 >

using	vec3 = Vector3< T >

Public Member Functions
virtual void	solve (const Grid< T, 3 > &wavy_surface_grid, Array< T, 3 > wavy_surface, const Grid< T, 4 > &velocity_potential_grid, Array< T, 4 > velocity_potential, panel_array &panels)=0
	Compute pressure force applied to the centre of each ship hull panel. More...

T	density () const noexcept
	Fluid density.

void	density (T rhs) noexcept

T	g () const noexcept
	Gravitational acceleration.

void	g (T rhs) noexcept

void	clip (bool b)

bool	clip () const
	Clamp grid to panels?

Detailed Description

Base class for all wave pressure solvers.

Calculates wave pressure using Bernoulli equation.

Definition at line 23 of file wave_pressure.hh.

Member Function Documentation

template<class T >

virtual void vtb::core::Wave_pressure_solver< T >::solve	(	const Grid< T, 3 > &	wavy_surface_grid,
		Array< T, 3 >	wavy_surface,
		const Grid< T, 4 > &	velocity_potential_grid,
		Array< T, 4 >	velocity_potential,
		panel_array &	panels
	)

pure virtual

Compute pressure force applied to the centre of each ship hull panel.

Parameters

[in]	wavy_surface_grid	Three-dimensional \((t,x,y)\) grid for each point of which wavy surface elevation is given.
[in]	velocity_potential_grid	Four-dimensional \((t,z,x,y)\) grid for each point of which velocity potential is calculated.
[in,out]	panels	Triangular panels comprising wetted part of the ship hull.

Compute pressure using Bernoulli equation:
\[ p(x,y,z,t) = -\rho \left( \phi_t + \frac{1}{2}\left( \phi_x^2 + \phi_y^2 + \phi_z^2 \right) + g z \right), \]
where \(\rho\) — fluid density, \(g\) — gravitational acceleration, \(\phi\) — velocity potential.
Determne pressure force for each panel as
\[ \vec{F} = \vec{x} \vec{n} S, \]
where \(S\) — panel area, \(\vec{x}\) — radius vector of the panel centre relative to the ship hull centre of mass, \(\vec{n}\) — normal vector of the panel facing outside the hull. Multiplication is pointwise.