m_constants.fpp.f90 File Reference

Modules
module	m_constants

Variables
character, parameter	m_constants::dflt_char = ' '
	Default string value.
real(wp), parameter	m_constants::dflt_real = -1e6_wp
	Default real value.
real(wp), parameter	m_constants::sgm_eps = 1e-16_wp
	Segmentation tolerance.
real(wp), parameter	m_constants::small_alf = 1e-11_wp
	Small alf tolerance.
real(wp), parameter	m_constants::pi = 3.141592653589793_wp
	Pi.
real(wp), parameter	m_constants::verysmall = 1.e-12_wp
	Very small number.
integer, parameter	m_constants::num_stcls_min = 5
	Minimum # of stencils.
integer, parameter	m_constants::path_len = 400
	Maximum path length.
integer, parameter	m_constants::name_len = 50
	Maximum name length.
integer, parameter	m_constants::dflt_int = -100
	Default integer value.
integer, parameter	m_constants::fourier_rings = 5
	Fourier filter ring limit.
integer, parameter	m_constants::num_fluids_max = 10
	Maximum number of fluids in the simulation.
integer, parameter	m_constants::num_probes_max = 10
	Maximum number of flow probes in the simulation.
integer, parameter	m_constants::num_patches_max = 10
integer, parameter	m_constants::pathlen_max = 400
integer, parameter	m_constants::nnode = 4
	Number of QBMM nodes.
integer, parameter	m_constants::gp_layers = 3
	Number of ghost point layers for IBM.
real(wp), parameter	m_constants::capillary_cutoff = 1e-6
	color function gradient magnitude at which to apply the surface tension fluxes
real(wp), parameter	m_constants::acoustic_spatial_support_width = 2.5_wp
	Spatial support width of acoustic source, used in s_source_spatial.
real(wp), parameter	m_constants::dflt_vcfl_dt = 100._wp
	value of vcfl_dt when viscosity is off for computing adaptive timestep size
real(wp), parameter	m_constants::broadband_spectral_level_constant = 20._wp
	The constant to scale the spectral level at the lower frequency bound.
real(wp), parameter	m_constants::broadband_spectral_level_growth_rate = 10._wp
	The spectral level constant to correct the magnitude at each frqeuency to ensure the source is overall broadband.
real(wp), parameter	m_constants::dflt_t_guess = 1200._wp
integer, parameter	m_constants::ifactor_2d = 50
	Multiple factor of the ratio (edge to cell width) for interpolation along edges for 2D models.
integer, parameter	m_constants::ifactor_3d = 5
	Multiple factor of the ratio (edge to cell width) for interpolation along edges for 3D models.
integer, parameter	m_constants::ifactor_bary_3d = 20
	Multiple factor of the ratio (triangle area to cell face area) for interpolation on triangle facets for 3D models.
integer, parameter	m_constants::num_ray = 20
	Default number of rays traced per cell.
real(wp), parameter	m_constants::ray_tracing_threshold = 0.9_wp
	Threshold above which the cell is marked as the model patch.
real(wp), parameter	m_constants::threshold_vector_zero = 1e-10
	Threshold to treat the component of a vector to be zero.
real(wp), parameter	m_constants::threshold_edge_zero = 1e-10
	Threshold to treat two edges to be overlapped.
real(wp), parameter	m_constants::threshold_bary = 1e-1
	Threshold to interpolate a barycentric facet.
real(wp), parameter	m_constants::initial_distance_buffer = 1e12_wp
	Initialized levelset distance for the shortest path pair algorithm.
integer, parameter	m_constants::mapcells = 3
	Number of cells around the bubble where the smoothening function will have effect.
real(wp), parameter	m_constants::r_uni = 8314._wp
integer, parameter	m_constants::num_ts_rkck = 6
	Number of time-stages in the RKCK stepper.
real(wp), parameter	m_constants::rkck_c1 = 0._wp
real(wp), parameter	m_constants::rkck_c2 = 0.2_wp
real(wp), parameter	m_constants::rkck_c3 = 0.3_wp
real(wp), parameter	m_constants::rkck_c4 = 0.6_wp
real(wp), parameter	m_constants::rkck_c5 = 1._wp
real(wp), parameter	m_constants::rkck_c6 = 0.875_wp
real(wp), dimension(6), parameter	m_constants::rkck_coef1 = (/0.2_wp, 0._wp, 0._wp, 0._wp, 0._wp, 0._wp/)
real(wp), dimension(6), parameter	m_constants::rkck_coef2 = (/3._wp/40._wp, 9._wp/40._wp, 0._wp, 0._wp, 0._wp, 0._wp/)
real(wp), dimension(6), parameter	m_constants::rkck_coef3 = (/0.3_wp, -0.9_wp, 1.2_wp, 0._wp, 0._wp, 0._wp/)
real(wp), dimension(6), parameter	m_constants::rkck_coef4 = (/-11._wp/54._wp, 2.5_wp, -70._wp/27._wp, 35._wp/27._wp, 0._wp, 0._wp/)
real(wp), dimension(6), parameter	m_constants::rkck_coef5 = (/1631._wp/55296._wp, 175._wp/512._wp, 575._wp/13824._wp, 44275._wp/110592._wp, 253._wp/4096._wp, 0._wp/)
real(wp), dimension(6), parameter	m_constants::rkck_coef6 = (/37._wp/378._wp, 0._wp, 250._wp/621._wp, 125._wp/594._wp, 0._wp, 512._wp/1771._wp/)
real(wp), dimension(6), parameter	m_constants::rkck_coefe = (/37._wp/378._wp - 2825._wp/27648._wp, 0._wp, 250._wp/621._wp - 18575._wp/48384._wp, 125._wp/594._wp - 13525._wp/55296._wp, -277._wp/14336._wp, 512._wp/1771._wp - 0.25_wp/)
real(wp), parameter	m_constants::verysmall_dt = 1e-14_wp
	Very small dt, stop stepper.
real(wp), parameter	m_constants::safety = 0.9_wp
	Next dt will be maximum 0.9*dt if truncation error is above tolerance.
real(wp), parameter	m_constants::rnddec = 1e8_wp
	Round calculated dt (16th digit) to avoid the inclusion of random decimals.
real(wp), parameter	m_constants::pshrnk = -0.25_wp
	Factor to reduce dt when truncation error above tolerance.
real(wp), parameter	m_constants::shrnkdt = 0.5_wp
	Factor to reduce dt due to negative bubble radius.
real(wp), parameter	m_constants::errcon = 1.89e-4_wp
	Limit to slightly increase dt when truncation error is between ERRCON and 1.
real(wp), parameter	m_constants::pgrow = -0.2_wp
	Factor to increase dt when truncation error is between ERRCON and 1.
integer, parameter	m_constants::case_file_error_code = 22