GfsApproxProjectionParams

From Gerris

GfsApproxProjectionParams can be used to tune the Poisson solver for the approximate (centered) projection. See GfsProjectionParams.

Examples

• Collapse of a column of grains

    ApproxProjectionParams { tolerance = 1e-4 }

• Lunar tides in Cook Strait, New Zealand

    ApproxProjectionParams { tolerance = 1e-6 nitermax = 10 }

• Convergence of the Poisson solver

  ApproxProjectionParams { tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Convergence with a refined circle

  ApproxProjectionParams { tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Dirichlet boundary condition

    ApproxProjectionParams { 
	tolerance = 1e-30 
	erelax = 2 
	nitermin = CYCLE nitermax = CYCLE 
    }

• Convergence of the Poisson solver with solid boundaries

  ApproxProjectionParams { tolerance = 1e-30 erelax = 2 nitermin = CYCLE nitermax = CYCLE }

• Star-shaped solid boundary with refinement

    ApproxProjectionParams { tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Star-shaped solid boundary

    ApproxProjectionParams { erelax = 2 tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Thin wall at box boundary

  ApproxProjectionParams { erelax = 2 tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Poisson solution in a dumbbell-shaped domain

  ApproxProjectionParams { nitermax = 1000 minlevel = 1 tolerance = 1e-30 }

• Estimation of the numerical viscosity

  ApproxProjectionParams { tolerance = 1e-6 }

• Estimation of the numerical viscosity with refined box

  ApproxProjectionParams { tolerance = 1e-6 }

• Numerical viscosity for the skew-symmetric scheme

  ApproxProjectionParams { tolerance = 1e-6 }

• Numerical viscosity for the skew-symmetric scheme with refined box

  ApproxProjectionParams { tolerance = 1e-6 }

• Convergence for a simple periodic problem

  ApproxProjectionParams { tolerance = 1e-6 }

• Convergence for the three-way vortex merging problem

  ApproxProjectionParams { tolerance = 1e-5 }

• Potential flow around a sphere

    ApproxProjectionParams { tolerance = 1e-10 }

• Mass conservation with solid boundary

    ApproxProjectionParams { tolerance = 1e-6 }

• Lid-driven cavity with a non-uniform metric

  ApproxProjectionParams { tolerance = 1e-4 }

• Poiseuille flow

    ApproxProjectionParams { tolerance = 1e-6 }

• Bagnold flow of a granular material

    ApproxProjectionParams { tolerance = 1e-8 }

• Poiseuille flow with metric

    ApproxProjectionParams { tolerance = 1e-6 }

• Creeping Couette flow of Generalised Newtonian fluids

  ApproxProjectionParams { tolerance = 1e-6 }

• Momentum conservation for large density ratios

    ApproxProjectionParams { tolerance = 1e-6 }

• Hydrostatic balance with solid boundaries and viscosity

    ApproxProjectionParams { tolerance = 1e-12 }

• Hydrostatic balance with quadratic pressure profile

    ApproxProjectionParams { tolerance = 1e-12 }

• Convergence of a potential flow solution

    ApproxProjectionParams { tolerance = 1e-6 }

• Flow through a divergent channel

    ApproxProjectionParams { tolerance = 1e-6 }

• Translation of an hexagon in a uniform flow

  ApproxProjectionParams { tolerance = 1e-10 }

• Circular droplet in equilibrium

  ApproxProjectionParams { tolerance = 1e-6 }

• Axisymmetric spherical droplet in equilibrium

  ApproxProjectionParams { tolerance = 1e-6 }

• Planar capillary waves

  ApproxProjectionParams { tolerance = 1e-6 }

• Air-Water capillary wave

  ApproxProjectionParams { tolerance = 1e-6 }

• Fluids of different densities

  ApproxProjectionParams { tolerance = 1e-6 }

• Pure gravity wave

  ApproxProjectionParams { tolerance = 1e-6 }

• Geostrophic adjustment

  ApproxProjectionParams { tolerance = 1e-6 }

• Geostrophic adjustment on a beta-plane

  ApproxProjectionParams { tolerance = 1e-6 }

• Non-linear geostrophic adjustment

  ApproxProjectionParams { tolerance = 1e-9 }

• Coastally-trapped waves

  ApproxProjectionParams { tolerance = 1e-9 weighted = 0 }

• Coastally-trapped waves with adaptive refinement

  ApproxProjectionParams { tolerance = 1e-9 weighted = 0 }

• Gravity waves in a realistic ocean basin

    ApproxProjectionParams { tolerance = 1e-6 nitermax = 10 }

• Poisson problem with a pure spherical harmonics solution

  ApproxProjectionParams { tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Spherical harmonics with longitude-latitude coordinates

  ApproxProjectionParams { tolerance = 1e-30 nitermin = CYCLE nitermax = CYCLE }

• Poisson equation on a sphere with Gaussian forcing

  ApproxProjectionParams { tolerance = 1e-12 }

• Gaussian forcing using longitude-latitude coordinates

  ApproxProjectionParams { tolerance = 1e-12 }

• Creeping Couette flow between cylinders

    ApproxProjectionParams { tolerance = 1e-6 }

• Creeping Couette flow between eccentric cylinders

  ApproxProjectionParams { tolerance = 1e-6 }

• Flow between eccentric cylinders using bipolar coordinates

  ApproxProjectionParams { tolerance = 1e-6 }

• Flow between eccentric cylinders on a stretched grid

  ApproxProjectionParams { tolerance = 1e-6 }

• Rossby--Haurwitz wave

    ApproxProjectionParams { tolerance = 1e-8 }

• Rossby--Haurwitz wave with a free surface

    ApproxProjectionParams { tolerance = 1e-9 }

• Dielectric-dieletric planar balance

    ApproxProjectionParams { tolerance = 1e-7 }

• Balance with solid boundaries

    ApproxProjectionParams { tolerance = 1e-7 }