kernel_hydro.h File Reference

Kernel functions for SPH. More...

#include "cmath"
#include "tarch/tarch.h"
#include "peano4/utils/Globals.h"
#include "tarch/compiler/CompilerSpecificSettings.h"

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Namespaces
namespace	swift2
	This file is part of the SWIFT 2 project.
namespace	swift2::kernels
namespace	swift2::kernels::legacy
	Legacy SPH implementation.
namespace	swift2::kernels::legacy::kernelHydro

Macros
#define	kernel_gamma_inv   ((float)(1. / kernel_gamma))
#define	kernel_gamma2   ((float)(kernel_gamma * kernel_gamma))
#define	kernel_ivals_f   ((float)(kernel_ivals))
#define	kernel_root   ((float)(kernel_coeffs[kernel_degree]) * kernel_constant * kernel_gamma_inv_dim)

Functions
static void	swift2::kernels::legacy::kernelHydro::kernel_eval (double u, double &W)
	Computes the kernel function.
static void	swift2::kernels::legacy::kernelHydro::kernel_deval (double u, double &W, double &dW_dx)
	Computes the kernel function and its derivative.

Detailed Description

Kernel functions for SPH.

Constants and kernel coefficients are taken from table 1 of Dehnen & Aly, MNRAS, 425, pp. 1062-1082 (2012).

This is a legacy file - kept as closely to the SWIFT original files as possible.

Definition in file kernel_hydro.h.

Macro Definition Documentation

kernel_gamma2

#define kernel_gamma2   ((float)(kernel_gamma * kernel_gamma))

Definition at line 72 of file kernel_hydro.h.

kernel_gamma_inv

#define kernel_gamma_inv   ((float)(1. / kernel_gamma))

Definition at line 71 of file kernel_hydro.h.

Referenced by swift2::kernels::legacy::first_init_particle(), swift2::kernels::legacy::kernelHydro::kernel_deval(), and swift2::kernels::legacy::kernelHydro::kernel_eval().

kernel_ivals_f

#define kernel_ivals_f   ((float)(kernel_ivals))

Definition at line 93 of file kernel_hydro.h.

Referenced by swift2::kernels::legacy::kernelHydro::kernel_deval(), and swift2::kernels::legacy::kernelHydro::kernel_eval().

kernel_root

#define kernel_root   ((float)(kernel_coeffs[kernel_degree]) * kernel_constant * kernel_gamma_inv_dim)

Definition at line 96 of file kernel_hydro.h.

Referenced by swift2::kernels::legacy::hydro_end_density(), swift2::kernels::legacy::hydro_update_smoothing_length_and_rerun_if_required(), and runner_do_ghost().