JIANG/EPANET
1
0
Fork 0
Code Issues Pull Requests Actions 4 Packages Projects Releases Wiki Activity
Files
1fce14efb87f19e51bf920121fcb0bc53c62c1ed
EPANET/src/input1.c
Lew Rossman 1fce14efb8 Increased size of MAXMSG to 255 (#189)
2018-10-15 11:34:25 -04:00

733 lines
24 KiB
C
Raw Blame History

/*
*********************************************************************
INPUT1.C -- Input Functions for EPANET Program
VERSION: 2.00
DATE: 5/30/00
9/7/00
11/19/01
6/24/02
2/14/08 (2.00.12)
AUTHOR: L. Rossman
US EPA - NRMRL
This module initializes, retrieves, and adjusts the input
data for a network simulation.
The entry point for this module is:
getdata() -- called from ENopen() in EPANET.C.
*********************************************************************
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifndef __APPLE__
#include <malloc.h>
#endif
#include "hash.h"
#include "text.h"
#include "types.h"
#include "epanet2.h"
#include "funcs.h"
#include <math.h>
/*
--------------------- Module Global Variables ----------------------
*/
#define MAXITER 200 /* Default max. # hydraulic iterations */
#define HACC 0.001 /* Default hydraulics convergence ratio */
#define HTOL 0.0005 /* Default hydraulic head tolerance (ft) */
/*** Updated 11/19/01 ***/
#define QTOL 0.0001 /* Default flow rate tolerance (cfs) */
#define AGETOL 0.01 /* Default water age tolerance (hrs) */
#define CHEMTOL 0.01 /* Default concentration tolerance */
#define PAGESIZE 0 /* Default uses no page breaks */
#define SPGRAV 1.0 /* Default specific gravity */
#define EPUMP 75 /* Default pump efficiency */
#define DEFPATID "1" /* Default demand pattern ID */
/*
These next three parameters are used in the hydraulics solver:
*/
#define RQTOL 1E-7 /* Default low flow resistance tolerance */
#define CHECKFREQ 2 /* Default status check frequency */
#define MAXCHECK 10 /* Default # iterations for status checks */
#define DAMPLIMIT 0 /* Default damping threshold */
extern char *Fldname[]; /* Defined in enumstxt.h in EPANET.C */
extern char *RptFlowUnitsTxt[];
int getdata(EN_Project *pr)
/*
**----------------------------------------------------------------
** Input: none
** Output: returns error code
** Purpose: reads in network data from disk file
**----------------------------------------------------------------
*/
{
int errcode = 0;
setdefaults(pr); /* Assign default data values */
initreport(&pr->report); /* Initialize reporting options */
rewind(pr->parser.InFile); /* Rewind input file */
ERRCODE(readdata(pr)); /* Read in network data */
if (!errcode)
adjustdata(pr); /* Adjust data for default values */
if (!errcode)
initunits(pr); /* Initialize units on input data */
ERRCODE(inittanks(pr)); /* Initialize tank volumes */
if (!errcode)
convertunits(pr); /* Convert units on input data */
return (errcode);
} /* End of getdata */
void setdefaults(EN_Project *pr)
/*
**----------------------------------------------------------------
** Input: none
** Output: none
** Purpose: assigns default values to global variables
**----------------------------------------------------------------
*/
{
parser_data_t *par = &pr->parser;
report_options_t *rep = &pr->report;
hydraulics_t *hyd = &pr->hydraulics;
quality_t *qu = &pr->quality;
time_options_t *time = &pr->time_options;
out_file_t *out = &pr->out_files;
strncpy(pr->Title[0], "", TITLELEN);
strncpy(pr->Title[1], "", TITLELEN);
strncpy(pr->Title[2], "", TITLELEN);
strncpy(out->TmpDir, "", MAXFNAME);
strncpy(out->TmpFname, "", MAXFNAME);
strncpy(out->HydFname, "", MAXFNAME);
strncpy(pr->MapFname, "", MAXFNAME);
strncpy(qu->ChemName, t_CHEMICAL, MAXID);
strncpy(qu->ChemUnits, u_MGperL, MAXID);
strncpy(par->DefPatID, DEFPATID, MAXID);
out->Hydflag = SCRATCH; /* No external hydraulics file */
qu->Qualflag = NONE; /* No quality simulation */
hyd->Formflag = HW; /* Use Hazen-Williams formula */
par->Unitsflag = US; /* US unit system */
par->Flowflag = GPM; /* Flow units are gpm */
par->Pressflag = PSI; /* Pressure units are psi */
rep->Tstatflag = SERIES; /* Generate time series output */
pr->Warnflag = FALSE; /* Warning flag is off */
hyd->Htol = HTOL; /* Default head tolerance */
hyd->Qtol = QTOL; /* Default flow tolerance */
hyd->Hacc = HACC; /* Default hydraulic accuracy */
hyd->FlowChangeLimit = 0.0; // Default flow change limit
hyd->HeadErrorLimit = 0.0; // Default head error limit
hyd->DemandModel = DDA; // Demand driven analysis
hyd->Pmin = 0.0; // Minimum demand pressure (ft)
hyd->Preq = 0.0; // Required demand pressure (ft)
hyd->Pexp = 0.5; // Pressure function exponent
qu->Ctol = MISSING; /* No pre-set quality tolerance */
hyd->MaxIter = MAXITER; /* Default max. hydraulic trials */
hyd->ExtraIter = -1; /* Stop if network unbalanced */
time->Dur = 0; /* 0 sec duration (steady state) */
time->Tstart = 0; /* Starting time of day */
time->Pstart = 0; /* Starting pattern period */
time->Hstep = 3600; /* 1 hr hydraulic time step */
qu->Qstep = 0; /* No pre-set quality time step */
time->Pstep = 3600; /* 1 hr time pattern period */
time->Rstep = 3600; /* 1 hr reporting period */
time->Rulestep = 0; /* No pre-set rule time step */
time->Rstart = 0; /* Start reporting at time 0 */
qu->TraceNode = 0; /* No source tracing */
qu->BulkOrder = 1.0; /* 1st-order bulk reaction rate */
qu->WallOrder = 1.0; /* 1st-order wall reaction rate */
qu->TankOrder = 1.0; /* 1st-order tank reaction rate */
qu->Kbulk = 0.0; /* No global bulk reaction */
qu->Kwall = 0.0; /* No global wall reaction */
qu->Climit = 0.0; /* No limiting potential quality */
qu->Diffus = MISSING; /* Temporary diffusivity */
qu->Rfactor = 0.0; /* No roughness-reaction factor */
hyd->Viscos = MISSING; /* Temporary viscosity */
hyd->SpGrav = SPGRAV; /* Default specific gravity */
hyd->DefPat = 0; /* Default demand pattern index */
hyd->Epat = 0; /* No energy price pattern */
hyd->Ecost = 0.0; /* Zero unit energy cost */
hyd->Dcost = 0.0; /* Zero energy demand charge */
hyd->Epump = EPUMP; /* Default pump efficiency */
hyd->Emax = 0.0; /* Zero peak energy usage */
hyd->Qexp = 2.0; /* Flow exponent for emitters */
hyd->Dmult = 1.0; /* Demand multiplier */
hyd->RQtol = RQTOL; /* Default hydraulics parameters */
hyd->CheckFreq = CHECKFREQ;
hyd->MaxCheck = MAXCHECK;
hyd->DampLimit = DAMPLIMIT;
qu->massbalance.ratio = 0.0;
} /* End of setdefaults */
void initreport(report_options_t *r)
/*
**----------------------------------------------------------------------
** Input: none
** Output: none
** Purpose: initializes reporting options
**----------------------------------------------------------------------
*/
{
int i;
strncpy(r->Rpt2Fname, "", MAXFNAME);
r->PageSize = PAGESIZE; /* Default page size for report */
r->Summaryflag = TRUE; /* Write summary report */
r->Messageflag = TRUE; /* Report error/warning messages */
r->Statflag = FALSE; /* No hydraulic status reports */
r->Energyflag = FALSE; /* No energy usage report */
r->Nodeflag = 0; /* No reporting on nodes */
r->Linkflag = 0; /* No reporting on links */
for (i = 0; i < MAXVAR; i++) /* For each reporting variable: */
{
strncpy(r->Field[i].Name, Fldname[i], MAXID);
r->Field[i].Enabled = FALSE; /* Not included in report */
r->Field[i].Precision = 2; /* 2 decimal precision */
/*** Updated 6/24/02 ***/
r->Field[i].RptLim[LOW] = SQR(BIG); /* No reporting limits */
r->Field[i].RptLim[HI] = -SQR(BIG);
}
r->Field[FRICTION].Precision = 3;
for (i = DEMAND; i <= QUALITY; i++) {
r->Field[i].Enabled = TRUE;
}
for (i = FLOW; i <= HEADLOSS; i++) {
r->Field[i].Enabled = TRUE;
}
}
void adjustdata(EN_Project *pr)
/*
**----------------------------------------------------------------------
** Input: none
** Output: none
** Purpose: adjusts data after input file has been processed
**----------------------------------------------------------------------
*/
{
EN_Network *net = &pr->network;
hydraulics_t *hyd = &pr->hydraulics;
quality_t *qu = &pr->quality;
time_options_t *time = &pr->time_options;
parser_data_t *par = &pr->parser;
report_options_t *rep = &pr->report;
int i;
double ucf; /* Unit conversion factor */
Pdemand demand; /* Pointer to demand record */
/* Use 1 hr pattern & report time step if none specified */
if (time->Pstep <= 0)
time->Pstep = 3600;
if (time->Rstep == 0)
time->Rstep = time->Pstep;
/* Hydraulic time step cannot be greater than pattern or report time step */
if (time->Hstep <= 0)
time->Hstep = 3600;
if (time->Hstep > time->Pstep)
time->Hstep = time->Pstep;
if (time->Hstep > time->Rstep)
time->Hstep = time->Rstep;
/* Report start time cannot be greater than simulation duration */
if (time->Rstart > time->Dur)
time->Rstart = 0;
/* No water quality analysis for steady state run */
if (time->Dur == 0)
qu->Qualflag = NONE;
/* If no quality timestep, then make it 1/10 of hydraulic timestep */
if (qu->Qstep == 0)
qu->Qstep = time->Hstep / 10;
/* If no rule time step then make it 1/10 of hydraulic time step; */
/* Rule time step cannot be greater than hydraulic time step */
if (time->Rulestep == 0)
time->Rulestep = time->Hstep / 10;
time->Rulestep = MIN(time->Rulestep, time->Hstep);
/* Quality timestep cannot exceed hydraulic timestep */
qu->Qstep = MIN(qu->Qstep, time->Hstep);
/* If no quality tolerance, then use default values */
if (qu->Ctol == MISSING) {
if (qu->Qualflag == AGE)
qu->Ctol = AGETOL;
else
qu->Ctol = CHEMTOL;
}
/* Determine unit system based on flow units */
switch (par->Flowflag) {
case LPS: /* Liters/sec */
case LPM: /* Liters/min */
case MLD: /* megaliters/day */
case CMH: /* cubic meters/hr */
case CMD: /* cubic meters/day */
par->Unitsflag = SI;
break;
default:
par->Unitsflag = US;
}
/* Revise pressure units depending on flow units */
if (par->Unitsflag != SI)
par->Pressflag = PSI;
else if (par->Pressflag == PSI)
par->Pressflag = METERS;
/* Store value of viscosity & diffusivity */
ucf = 1.0;
if (par->Unitsflag == SI)
ucf = SQR(MperFT);
if (hyd->Viscos == MISSING) /* No value supplied */
hyd->Viscos = VISCOS;
else if (hyd->Viscos > 1.e-3) /* Multiplier supplied */
hyd->Viscos = hyd->Viscos * VISCOS;
else /* Actual value supplied */
hyd->Viscos = hyd->Viscos / ucf;
if (qu->Diffus == MISSING)
qu->Diffus = DIFFUS;
else if (qu->Diffus > 1.e-4)
qu->Diffus = qu->Diffus * DIFFUS;
else
qu->Diffus = qu->Diffus / ucf;
/*
Set exponent in head loss equation and adjust flow-resistance tolerance.
*/
if (hyd->Formflag == HW)
hyd->Hexp = 1.852;
else
hyd->Hexp = 2.0;
/*** Updated 9/7/00 ***/
/*** No adjustment made to flow-resistance tolerance ***/
/*hyd->RQtol = hyd->RQtol/Hexp;*/
/* See if default reaction coeffs. apply */
for (i = 1; i <= net->Nlinks; i++) {
Slink *link = &net->Link[i];
if (link->Type > EN_PIPE)
continue;
if (link->Kb == MISSING)
link->Kb = qu->Kbulk; /* Bulk coeff. */
if (link->Kw == MISSING) /* Wall coeff. */
{
/* Rfactor is the pipe roughness correlation factor */
if (qu->Rfactor == 0.0)
link->Kw = qu->Kwall;
else if ((link->Kc > 0.0) && (link->Diam > 0.0)) {
if (hyd->Formflag == HW)
link->Kw = qu->Rfactor / link->Kc;
if (hyd->Formflag == DW)
link->Kw = qu->Rfactor / ABS(log(link->Kc / link->Diam));
if (hyd->Formflag == CM)
link->Kw = qu->Rfactor * link->Kc;
} else
link->Kw = 0.0;
}
}
for (i = 1; i <= net->Ntanks; i++) {
Stank *tank = &net->Tank[i];
if (tank->Kb == MISSING) {
tank->Kb = qu->Kbulk;
}
}
/* Use default pattern if none assigned to a demand */
for (i = 1; i <= net->Nnodes; i++) {
Snode *node = &net->Node[i];
for (demand = node->D; demand != NULL; demand = demand->next) {
if (demand->Pat == 0) {
demand->Pat = hyd->DefPat;
}
}
}
/* Remove QUALITY as a reporting variable if no WQ analysis */
if (qu->Qualflag == NONE)
rep->Field[QUALITY].Enabled = FALSE;
} /* End of adjustdata */
int inittanks(EN_Project *pr)
/*
**---------------------------------------------------------------
** Input: none
** Output: returns error code
** Purpose: initializes volumes in non-cylindrical tanks
**---------------------------------------------------------------
*/
{
EN_Network *net = &pr->network;
int i, j, n = 0;
double a;
int errcode = 0, levelerr;
for (j = 1; j <= net->Ntanks; j++) {
Stank *tank = &net->Tank[j];
/* Skip reservoirs */
if (tank->A == 0.0)
continue;
/* Check for valid lower/upper tank levels */
levelerr = 0;
if (tank->H0 > tank->Hmax || tank->Hmin > tank->Hmax ||
tank->H0 < tank->Hmin) {
levelerr = 1;
}
/* Check that tank heights are within volume curve */
i = tank->Vcurve;
if (i > 0) {
Scurve *curve = &net->Curve[i];
n = curve->Npts - 1;
if (tank->Hmin < curve->X[0] || tank->Hmax > curve->X[n])
levelerr = 1;
}
/* Report error in levels if found */
if (levelerr) {
char errMsg[MAXMSG+1];
EN_geterror(225, errMsg, MAXMSG);
sprintf(pr->Msg, "%s node: %s", errMsg, net->Node[tank->Node].ID);
writeline(pr, pr->Msg);
errcode = 200;
}
/* Else if tank has a volume curve, */
else if (i > 0) {
Scurve *curve = &net->Curve[i];
/* Find min., max., and initial volumes from curve */
tank->Vmin = interp(curve->Npts, curve->X, curve->Y, tank->Hmin);
tank->Vmax = interp(curve->Npts, curve->X, curve->Y, tank->Hmax);
tank->V0 = interp(curve->Npts, curve->X, curve->Y, tank->H0);
/* Find a "nominal" diameter for tank */
a = (curve->Y[n] - curve->Y[0]) / (curve->X[n] - curve->X[0]);
tank->A = sqrt(4.0 * a / PI);
}
}
return (errcode);
} /* End of inittanks */
void initunits(EN_Project *pr)
/*
**--------------------------------------------------------------
** Input: none
** Output: none
** Purpose: determines unit conversion factors
**--------------------------------------------------------------
*/
{
parser_data_t *par = &pr->parser;
report_options_t *rep = &pr->report;
hydraulics_t *hyd = &pr->hydraulics;
quality_t *qu = &pr->quality;
time_options_t *time = &pr->time_options;
double dcf, /* distance conversion factor */
ccf, /* concentration conversion factor */
qcf, /* flow conversion factor */
hcf, /* head conversion factor */
pcf, /* pressure conversion factor */
wcf; /* energy conversion factor */
if (par->Unitsflag == SI) /* SI units */
{
strcpy(rep->Field[DEMAND].Units, RptFlowUnitsTxt[par->Flowflag]);
strcpy(rep->Field[ELEV].Units, u_METERS);
strcpy(rep->Field[HEAD].Units, u_METERS);
if (par->Pressflag == METERS)
strcpy(rep->Field[PRESSURE].Units, u_METERS);
else
strcpy(rep->Field[PRESSURE].Units, u_KPA);
strcpy(rep->Field[LENGTH].Units, u_METERS);
strcpy(rep->Field[DIAM].Units, u_MMETERS);
strcpy(rep->Field[FLOW].Units, RptFlowUnitsTxt[par->Flowflag]);
strcpy(rep->Field[VELOCITY].Units, u_MperSEC);
strcpy(rep->Field[HEADLOSS].Units, u_per1000M);
strcpy(rep->Field[FRICTION].Units, "");
strcpy(rep->Field[POWER].Units, u_KW);
dcf = 1000.0 * MperFT;
qcf = LPSperCFS;
if (par->Flowflag == LPM)
qcf = LPMperCFS;
if (par->Flowflag == MLD)
qcf = MLDperCFS;
if (par->Flowflag == CMH)
qcf = CMHperCFS;
if (par->Flowflag == CMD)
qcf = CMDperCFS;
hcf = MperFT;
if (par->Pressflag == METERS)
pcf = MperFT * hyd->SpGrav;
else
pcf = KPAperPSI * PSIperFT * hyd->SpGrav;
wcf = KWperHP;
} else /* US units */
{
strcpy(rep->Field[DEMAND].Units, RptFlowUnitsTxt[par->Flowflag]);
strcpy(rep->Field[ELEV].Units, u_FEET);
strcpy(rep->Field[HEAD].Units, u_FEET);
strcpy(rep->Field[PRESSURE].Units, u_PSI);
strcpy(rep->Field[LENGTH].Units, u_FEET);
strcpy(rep->Field[DIAM].Units, u_INCHES);
strcpy(rep->Field[FLOW].Units, RptFlowUnitsTxt[par->Flowflag]);
strcpy(rep->Field[VELOCITY].Units, u_FTperSEC);
strcpy(rep->Field[HEADLOSS].Units, u_per1000FT);
strcpy(rep->Field[FRICTION].Units, "");
strcpy(rep->Field[POWER].Units, u_HP);
dcf = 12.0;
qcf = 1.0;
if (par->Flowflag == GPM)
qcf = GPMperCFS;
if (par->Flowflag == MGD)
qcf = MGDperCFS;
if (par->Flowflag == IMGD)
qcf = IMGDperCFS;
if (par->Flowflag == AFD)
qcf = AFDperCFS;
hcf = 1.0;
pcf = PSIperFT * hyd->SpGrav;
wcf = 1.0;
}
strcpy(rep->Field[QUALITY].Units, "");
ccf = 1.0;
if (qu->Qualflag == CHEM) {
ccf = 1.0 / LperFT3;
strncpy(rep->Field[QUALITY].Units, qu->ChemUnits, MAXID);
strncpy(rep->Field[REACTRATE].Units, qu->ChemUnits, MAXID);
strcat(rep->Field[REACTRATE].Units, t_PERDAY);
} else if (qu->Qualflag == AGE)
strcpy(rep->Field[QUALITY].Units, u_HOURS);
else if (qu->Qualflag == TRACE)
strcpy(rep->Field[QUALITY].Units, u_PERCENT);
pr->Ucf[DEMAND] = qcf;
pr->Ucf[ELEV] = hcf;
pr->Ucf[HEAD] = hcf;
pr->Ucf[PRESSURE] = pcf;
pr->Ucf[QUALITY] = ccf;
pr->Ucf[LENGTH] = hcf;
pr->Ucf[DIAM] = dcf;
pr->Ucf[FLOW] = qcf;
pr->Ucf[VELOCITY] = hcf;
pr->Ucf[HEADLOSS] = hcf;
pr->Ucf[LINKQUAL] = ccf;
pr->Ucf[REACTRATE] = ccf;
pr->Ucf[FRICTION] = 1.0;
pr->Ucf[POWER] = wcf;
pr->Ucf[VOLUME] = hcf * hcf * hcf;
if (time->Hstep < 1800) /* Report time in mins. */
{ /* if hydraulic time step */
pr->Ucf[TIME] = 1.0 / 60.0; /* is less than 1/2 hour. */
strcpy(rep->Field[TIME].Units, u_MINUTES);
} else {
pr->Ucf[TIME] = 1.0 / 3600.0;
strcpy(rep->Field[TIME].Units, u_HOURS);
}
} /* End of initunits */
void convertunits(EN_Project *pr)
/*
**--------------------------------------------------------------
** Input: none
** Output: none
** Purpose: converts units of input data
**--------------------------------------------------------------
*/
{
EN_Network *net = &pr->network;
hydraulics_t *hyd = &pr->hydraulics;
quality_t *qu = &pr->quality;
parser_data_t *par = &pr->parser;
int i, j, k;
double ucf; /* Unit conversion factor */
Pdemand demand; /* Pointer to demand record */
Snode *node;
Stank *tank;
Slink *link;
Spump *pump;
Scontrol *control;
/* Convert nodal elevations & initial WQ */
/* (WQ source units are converted in QUALITY.C */
for (i = 1; i <= net->Nnodes; i++) {
node = &net->Node[i];
node->El /= pr->Ucf[ELEV];
node->C0 /= pr->Ucf[QUALITY];
}
/* Convert demands */
for (i = 1; i <= net->Njuncs; i++) {
node = &net->Node[i];
for (demand = node->D; demand != NULL; demand = demand->next) {
demand->Base /= pr->Ucf[DEMAND];
}
}
hyd->Pmin /= pr->Ucf[PRESSURE];
hyd->Preq /= pr->Ucf[PRESSURE];
/* Convert emitter discharge coeffs. to head loss coeff. */
ucf = pow(pr->Ucf[FLOW], hyd->Qexp) / pr->Ucf[PRESSURE];
for (i = 1; i <= net->Njuncs; i++) {
node = &net->Node[i];
if (node->Ke > 0.0) {
node->Ke = ucf / pow(node->Ke, hyd->Qexp);
}
}
/* Initialize tank variables (convert tank levels to elevations) */
for (j = 1; j <= net->Ntanks; j++) {
tank = &net->Tank[j];
i = tank->Node;
node = &net->Node[i];
tank->H0 = node->El + tank->H0 / pr->Ucf[ELEV];
tank->Hmin = node->El + tank->Hmin / pr->Ucf[ELEV];
tank->Hmax = node->El + tank->Hmax / pr->Ucf[ELEV];
tank->A = PI * SQR(tank->A / pr->Ucf[ELEV]) / 4.0;
tank->V0 /= pr->Ucf[VOLUME];
tank->Vmin /= pr->Ucf[VOLUME];
tank->Vmax /= pr->Ucf[VOLUME];
tank->Kb /= SECperDAY;
tank->V = tank->V0;
tank->C = node->C0;
tank->V1max *= tank->Vmax;
}
/* Convert hydraulic convergence criteria */
hyd->FlowChangeLimit /= pr->Ucf[FLOW];
hyd->HeadErrorLimit /= pr->Ucf[HEAD];
/* Convert WQ option concentration units */
qu->Climit /= pr->Ucf[QUALITY];
qu->Ctol /= pr->Ucf[QUALITY];
/* Convert global reaction coeffs. */
qu->Kbulk /= SECperDAY;
qu->Kwall /= SECperDAY;
/* Convert units of link parameters */
for (k = 1; k <= net->Nlinks; k++) {
link = &net->Link[k];
if (link->Type <= EN_PIPE) {
/* Convert pipe parameter units: */
/* - for Darcy-Weisbach formula, convert roughness */
/* from millifeet (or mm) to ft (or m) */
/* - for US units, convert diameter from inches to ft */
if (hyd->Formflag == DW)
link->Kc /= (1000.0 * pr->Ucf[ELEV]);
link->Diam /= pr->Ucf[DIAM];
link->Len /= pr->Ucf[LENGTH];
/* Convert minor loss coeff. from V^2/2g basis to Q^2 basis */
link->Km = 0.02517 * link->Km / SQR(link->Diam) / SQR(link->Diam);
/* Convert units on reaction coeffs. */
link->Kb /= SECperDAY;
link->Kw /= SECperDAY;
}
else if (link->Type == EN_PUMP) {
/* Convert units for pump curve parameters */
i = findpump(net, k);
pump = &net->Pump[i];
if (pump->Ptype == CONST_HP) {
/* For constant hp pump, convert kw to hp */
if (par->Unitsflag == SI)
pump->R /= pr->Ucf[POWER];
} else {
/* For power curve pumps, convert */
/* shutoff head and flow coefficient */
if (pump->Ptype == POWER_FUNC) {
pump->H0 /= pr->Ucf[HEAD];
pump->R *= (pow(pr->Ucf[FLOW], pump->N) / pr->Ucf[HEAD]);
}
/* Convert flow range & max. head units */
pump->Q0 /= pr->Ucf[FLOW];
pump->Qmax /= pr->Ucf[FLOW];
pump->Hmax /= pr->Ucf[HEAD];
}
}
else {
/* For flow control valves, convert flow setting */
/* while for other valves convert pressure setting */
link->Diam /= pr->Ucf[DIAM];
link->Km = 0.02517 * link->Km / SQR(link->Diam) / SQR(link->Diam);
if (link->Kc != MISSING)
switch (link->Type) {
case EN_FCV:
link->Kc /= pr->Ucf[FLOW];
break;
case EN_PRV:
case EN_PSV:
case EN_PBV:
link->Kc /= pr->Ucf[PRESSURE];
break;
default:
break;
}
}
////// Moved to inithyd() in hydraul.c ///////
/* Compute flow resistances */
//resistance(pr, k);
}
/* Convert units on control settings */
for (i = 1; i <= net->Ncontrols; i++) {
control = &net->Control[i];
if ((k = control->Link) == 0) {
continue;
}
link = &net->Link[k];
if ((j = control->Node) > 0) {
node = &net->Node[j];
if (j > net->Njuncs) {
/* j > Njuncs, then control is based on tank level */
control->Grade = node->El + control->Grade / pr->Ucf[ELEV];
} else {
/* otherwise control is based on nodal pressure */
control->Grade = node->El + control->Grade / pr->Ucf[PRESSURE];
}
}
/* Convert units on valve settings */
if (control->Setting != MISSING) {
switch (link->Type) {
case EN_PRV:
case EN_PSV:
case EN_PBV:
control->Setting /= pr->Ucf[PRESSURE];
break;
case EN_FCV:
control->Setting /= pr->Ucf[FLOW];
default:
break;
}
}
}
} /* End of convertunits */
/************************ END OF INPUT1.C ************************/
Reference in New Issue View Git Blame Copy Permalink