#include <DynamicWave.hpp>

Collaboration diagram for openswmm::dynwave::DPSLinkArrays:

Public Member Functions
void	resize (std::size_t n)
	Reset every conduit DPS history array to the requested length.

Public Attributes
std::vector< double >	As
	Accumulated slot area (ft²)

std::vector< double >	hs
	Current surcharge head (ft)

std::vector< double >	hs_prev_iter
	hs at start of current timestep (ft)

std::vector< double >	P
	Current Preissmann Number (smoothed)

std::vector< double >	P_hat
	Provisional Preissmann Number (before smoothing)

std::vector< double >	P_hat_0
	Initial P for unpressurized conduit.

std::vector< double >	T_s_target
	g · A_C / c_pT² (cached at init)

std::vector< double >	t_s
	Time when element last became surcharged (sec)

std::vector< uint8_t >	surcharged
	Currently surcharged flag.

Detailed Description

Per-conduit DPS state — Structure of Arrays (persistent across timesteps). Each vector is indexed by conduit index [0..n_conduits_).

The head-first link-node formulation treats hs as a diagnostic of the node-head solution (hs = max(depth_mid − y_full, 0)) and accumulates As from dAs = T_s · dhs so the slot storage is path-dependent and invariant under P-only evolution. hs_prev_iter records the last geometry-update head, so each Picard geometry pass accumulates only its increment dhs = hs_iter - hs_prev_iter; the anchor is advanced to hs_iter during that pass. T_s_target = g · A_C / c_pT² is cached so the per-iter T_s = T_s_target · P² reduces to a single multiply.

Member Function Documentation

◆ resize()

void openswmm::dynwave::DPSLinkArrays::resize ( std::size_t n )

inline

Reset every conduit DPS history array to the requested length.

Areas/heads/times/flags reset to zero, all Preissmann-number arrays reset to one, target widths reset to zero. assign discards old history and can invalidate element references; allocation failure may leave partial reset. Native dimensions are ft, ft2 and seconds; n is the real-conduit count, excluding DUMMY.

Parameters

[in] n Required element count; must fit vector allocation limits.

Member Data Documentation

◆ As

std::vector<double> openswmm::dynwave::DPSLinkArrays::As

Accumulated slot area (ft²)

◆ hs

std::vector<double> openswmm::dynwave::DPSLinkArrays::hs

Current surcharge head (ft)

◆ hs_prev_iter

std::vector<double> openswmm::dynwave::DPSLinkArrays::hs_prev_iter

hs at start of current timestep (ft)

◆ P

std::vector<double> openswmm::dynwave::DPSLinkArrays::P

Current Preissmann Number (smoothed)

◆ P_hat

std::vector<double> openswmm::dynwave::DPSLinkArrays::P_hat

Provisional Preissmann Number (before smoothing)

◆ P_hat_0

std::vector<double> openswmm::dynwave::DPSLinkArrays::P_hat_0

Initial P for unpressurized conduit.

◆ surcharged

std::vector<uint8_t> openswmm::dynwave::DPSLinkArrays::surcharged

Currently surcharged flag.

◆ t_s

std::vector<double> openswmm::dynwave::DPSLinkArrays::t_s

Time when element last became surcharged (sec)

◆ T_s_target

std::vector<double> openswmm::dynwave::DPSLinkArrays::T_s_target

g · A_C / c_pT² (cached at init)

The documentation for this struct was generated from the following file:

/home/runner/work/openswmm.engine/openswmm.engine/src/engine/hydraulics/DynamicWave.hpp

Public Member Functions

Public Attributes