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bmpinit.f
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bmpinit.f
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subroutine bmpinit
!! ~ ~ ~ PURPOSE ~ ~ ~
!! This subroutine sets default values for urban bmp parameters
!! ~ ~ ~ INCOMING VARIABLES ~ ~ ~ ~ ~ ~ ~
!! name |units |definition
!! ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
!! dtp_onoff(:) |none |sub-basin detention pond is associated with
!! dtp_iy(:) |none |year of the simulation that the reservoir
!! |becomes operational
!! dtp_imo(:) |none |month the reservoir becomes operational
!! dtp_evrsv |none |detention pond evaporation coefficient
!! dtp_numweir(:) |none |Total number of weirs in the BMP
!! dtp_numstage(:)|none |Total number of stages in the weir
!! dtp_lwratio(:) |none |Ratio of length to width of water back up
!! dtp_totwrwid(:)|m |Total constructed width of the detention wall across
!! |the creek
!! dtp_stagdis(:) |none |0=use weir/orifice discharge equation to calculate
!! |outflow, 1=use stage-dicharge relationship
!! dtp_reltype(:) |none |Equations for Stage-Discharge relationship,1=exponential
!! |function, 2=linear, 3=logarithmic, 4=cubic, 5=power
!! dtp_intcept(:) |none |Intercept used in regression equations
!! dtp_expont(:) |none |Exponent used in the exponential equation
!! dtp_coef1(:) |none |Coefficient of 3rd degree in the polynomial equation
!! dtp_coef2(:) |none |Coefficient of 2nd degree in the polynomial equation
!! dtp_coef3(:) |none |Coefficient of 1st degree in the polynomial equation
!! dtp_dummy1(:) |none |Dummy variable, backs up space (Rename for use)
!! dtp_dummy2(:) |none |Dummy variable, backs up space (Rename for use)
!! dtp_dummy3(:) |none |Dummy variable, backs up space (Rename for use)
!! dtp_weirtype(:,:)|none |Type of weir: 1=rectangular and 2=circular
!! dtp_weirdim(:,:)|none |Weir dimensions, 1=read user input, 0=use model calculation
!! dtp_wdratio(:,:)|none |Width depth ratio of rectangular weirs
!! dtp_depweir(:,:)|m |Depth of rectangular wier at different stages
!! dtp_diaweir(:,:)|m |Diameter of orifice hole at different stages
!! dtp_addon(:,:) |m |The distance between spillway levels
!! dtp_flowrate(:,:)|m3/sec |Maximum discharge from each stage of the weir/hole
!! dtp_cdis(:,:) |none |Discharge coeffieicne for weir/orifice flow
!! dtp_retperd(:,:)|years |Return period at different stages
!! dtp_pcpret(:,:)|mm |precipitation for different return periods (not used)
!! ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
!! ~ ~ ~ OUTGOING VARIABLES ~ ~ ~ ~ ~ ~ ~ ~ ~
!! name |units |definition
!! ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
!! res_out(:,:,:) |m**3/day |measured average daily outflow from the
!! |reservoir for the month (needed if IRESCO=1)
!! |(read in as m**3/s and converted to m**3/day)
!! ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
!! ~ ~ ~ LOCAL DEFINITIONS ~ ~ ~
!! name |units |definition
!! ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
!! eof |none |end of file flag
!! k |none |counter
!! lnvol |none |variable to hold denominator value
!! mon |none |counter
!! titldum |NA |title line in .det file (not used in program)
!! resmto |NA |name of reservoir outflow file
!! |(needed if IDETCO = 2)
!! ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
!! ~ ~ ~ ~ ~ ~ END SPECIFICATIONS ~ ~ ~ ~ ~ ~
use parm
implicit none
integer :: j, k, eof,kk
real :: hwq,wqv,sub_ha,bmpfr_sf,bmpfr_ri, qstg, hstg
eof = 0; bmpfr_sf=0.; bmpfr_ri=0.; hstg = 0.; qstg=0.
sub_ha = sub_km(i) * 100.
!! Detention pond
!!----------------
if (dtp_onoff(i)==1) then
if (dtp_imo(i)<=0) dtp_imo(i) = 1
if (dtp_iyr(i)<=1000) dtp_iyr(i) = iyr
if (dtp_evrsv(i)<=0) dtp_evrsv(i) = 0.1
if (dtp_lwratio(i)>1) dtp_lwratio(i) = 1
if (dtp_numweir(i)<=0) dtp_numweir(i) = 1
if (dtp_numstage(i)<=0) dtp_numstage(i) = 1
if (dtp_numstage(i)>1) then
do k=2,dtp_numstage(i)
if (dtp_weirtype(i,k)==1) dtp_addon(i,k) = 0.
end do
endif
!! Estimating design flow rate if not entered by user
do k=1,dtp_numstage(i)
if (dtp_flowrate(i,k)<=0.0) then
dtp_flowrate(i,k) = 0.5 * 1000.0 * dtp_pcpret(i,k)
& * subdr_km(i) / (idt*60.)
end if
if (dtp_flowrate(i,k)<0) then
print *,"Error.. Could not estimate emergency spillway volume"
print *,"Please enter necessary data in *.pnd input file"
print *,"for subbasin : ",i
!! stop
end if
end do
!! Separate cumulative flow information to individual weir
do k=2,dtp_numstage(i)
dtp_flowrate(i,k) = dtp_flowrate(i,k) / dtp_numweir(i)
end do
!!Estimate weir dimensions based on existing data
do k=1,dtp_numstage(i)
if (dtp_weirdim(i,k)==0) then !! Estimating weir dimensions
if (dtp_weirtype(i,k)==2) then !! choosing weir type
dtp_diaweir(i,k)=(0.479081 * dtp_flowrate(i,k)
& / dtp_cdis(i,k))**0.4
else !rectangular weir
if (k==1) then
hstg = dtp_depweir(i,k)
dtp_wrwid(i,k) = dtp_flowrate(i,k)
& / (1.84*dtp_cdis(i,k)*hstg**1.5)
else
qstg = 0.
do j=1,k-1
hstg = sum(dtp_depweir(i,j:k))
qstg = dtp_cdis(i,k) * 1.84
& * dtp_wrwid(i,j) * hstg ** 1.5 !m3/s
dtp_flowrate(i,k) = max(0.,dtp_flowrate(i,k)-qstg)
end do
dtp_wrwid(i,k) = dtp_flowrate(i,k)
& / (1.84*dtp_cdis(i,k)*dtp_depweir(i,k)**1.5)
endif
end if
else !! read user-entered data
if (dtp_weirtype(i,k)==1) then
dtp_wrwid(i,k) = dtp_wdratio(i,k) * dtp_depweir(i,k)
end if
end if
end do
!! divide rectangular weirs into multiple single stage weirs
do k = 2, dtp_numstage(i)
dtp_addon(i,k) = dtp_addon(i,k-1) + dtp_depweir(i,k-1)
end do
! weir depth from the top to the bottom of each stage
do k = dtp_numstage(i), 2, -1
dtp_depweir(i,k-1) = dtp_depweir(i,k) + dtp_depweir(i,k-1)
end do
end if
!! Wet pond
!!----------
if (wtp_onoff(i)==1) then
if (wtp_imo(i)<=0) wtp_imo(i) = 1
if (wtp_iyr(i)<=1000) wtp_iyr(i) = iyr
if (wtp_k(i) <=0) wtp_k(i) = 0.01
if (wtp_evrsv(i)<=0) wtp_evrsv(i) = 0.01
if (wtp_evrsv(i)>1) wtp_evrsv(i) = 0.99
if (wtp_sdslope(i)<3) wtp_sdslope(i) = 3. !COA Manual 1.6.6.C
if (wtp_lenwdth(i)<2) wtp_lenwdth(i) = 2. !COA Manual 1.6.6.C
if (wtp_pdia(i)<=0) wtp_pdia(i) = 0.1524 !meter(=6inches), COA Manual 1.6.6
if (wtp_plen(i)<=2) wtp_plen(i) = 2 !meter
if (wtp_pmann(i)<=0) wtp_pmann(i) = 0.012 ! concrete surface
if (wtp_ploss(i)<=0) wtp_ploss(i) = 0
end if
!fraction runoff that directly enters the channel
if(num_sf(i)>=1) then
do kk=1,num_sf(i)
bmpfr_sf = bmpfr_sf + sf_fr(i,kk)
end do
endif
if(num_ri(i)>=1) then
do kk=1,num_ri(i)
bmpfr_ri = bmpfr_ri + ri_fr(i,kk)
end do
endif
if (bmpfr_sf>1.or.bmpfr_ri>1) then
write (*,*) " "
write (*,*) "Urban BMP Warning!!"
write (*,*) "In subbasin ", i
write (*,*) "The fraction runoff draining to urban BMPs"
write (*,*) " are larger than one, so the fraction values"
write (*,*) " were automatically reassigned"
write (*,*) " "
do kk=1,num_sf(i)
sf_fr(i,kk) = sf_fr(i,kk) / bmpfr_sf
end do
do kk=1,num_sf(i)
ri_fr(i,kk) = ri_fr(i,kk) / bmpfr_ri
end do
bmpfr_sf = 1.; bmpfr_ri=1.
endif
!!Retention-Irrigation
!!---------------------
do k=1,num_ri(i)
! skip the pond that has zero inflow
if (ri_fr(i,k)==0) cycle
! determine water quality volume for defult pond sizes
!City of Austin Design Guideline 1.6.9.2 Table 1-12
!Retention-Irrigation for Barton Springs Zone
hwq = (1.8 * sub_ha_imp(i) / sub_ha_urb(i) + 0.6) !inches
wqv = hwq / 12. * sub_ha_urb(i) * ri_fr(i,k) * 107639.104167 !ft3
if (ri_dim(i,k)==0) then
!Determine pond size automatically based on City of Austin's Design Guideline 1.6
ri_vol(i,k) = wqv * 0.028317 !m3
ri_dep(i,k)=1.5 !assume 1.5m as default retention pond depth
ri_sa(i,k) = ri_vol(i,k) / ri_dep(i,k)
ri_dd (i,k)=60.0 !drawdown time, hr
ri_k(i,k)=2.5
ri_evrsv(i,k)=0.6
else
!Evaluate unit variables provided by user
if (ri_sa(i,k)<1.or.ri_vol(i,k)<1) then
!City of Austin Design Guideline 1.6.5
ri_vol(i,k) = wqv * 0.028317 !m3
ri_sa(i,k) = ri_vol(i,k) / ri_dep(i,k)
end if
ri_dep(i,k) = ri_vol(i,k) / ri_sa(i,k)
if (ri_dd(i,k)<=0) ri_dd (i,k)=72.0
if (ri_k(i,k) <=0 ) ri_k(i,k)=2.5
if (ri_evrsv(i,k) <=0 ) ri_evrsv(i,k)=0.1
if (ri_dep(i,k)<=1) ri_dep(i,k)=1.
end if
! draw down time [number of time step]
ri_ndt(i,k) = (ri_dd(i,k) - 12.) * 60 / idt !minus the first dry 12 hours no-pumping
! pumping rate that empties the basin in 72 hours with initial 12 hour of no operatrion
ri_pumpv(i,k) = ri_vol(i,k) / ri_ndt(i,k) !m3/dt
if (ri_im(i,k)<0.or.ri_im(i,k)>12) ri_im(i,k) = 0
if (ri_iy(i,k)<1000.and.ri_iy(i,k)>0) ri_iy(i,k) = 0
if (ri_iy(i,k)==0) ri_iy(i,k) = iyr
if (ri_im(i,k)==0) ri_im(i,k) = 1
write(77779,'(a11,i5)') 'Subbasin #:', i ! bmp_sedfil.out
write(77779,'(a46)') ''
write(77779,'(a10,i5)') 'RI #:', K ! bmp_sedfil.out
write(77779,'(a17,f10.1,a4)') 'Total volume =', ri_vol(i,k),'m^3'
write(77779,'(a17,f10.1,a4)') 'Surface area =', ri_sa(i,k),'m^2'
write(77779,'(a17,f10.1,a3)') 'Drawdown time =', ri_dd (i,k),'hr'
write(77779,'(a17)') ''
end do
!!Sedimentation-Filtration
!!---------------------
do k=1,num_sf(i)
write(77778,'(a11,i5)') 'Subbasin #:', i ! bmp_sedfil.out
write(77778,'(a46)') ''
write(77778,'(a10,i5)') 'SED-FIL #:', K ! bmp_sedfil.out
!determine water quality volume for defult pond sizes
!City of Austin Design Guideline 1.6.2
hwq = (0.5 + sub_ha_imp(i) / sub_ha_urb(i) - 0.2) !inches
wqv = hwq / 12. * sub_ha_urb(i) * sf_fr(i,k) * 107639.104167 !ft3
if (sf_dim(i,k)==0) then
write(77778,'(a46)') 'This SED-FIL size is automatically'
& // ' estimated based on WQV.'
!Determine pond size automatically based on City of Austin's Design Guideline 1.6
if (sf_typ(i,k)==1.or.sf_typ(i,k)==3) then
! full scale or sedimentation basin only
sp_pvol(i,k) = wqv * 0.028317 !m3
sp_sa(i,k) = sp_pvol(i,k) / 1.5 !assume 1.5m depth for sed pond
sp_pd(i,k) = sqrt(4. * 2. * sp_sa(i,k) * 1.5**0.5
& / (0.6 * 172800. * 19.6**0.5) / 3.14159) * 1000. !mm
ft_sa(i,k) = wqv/(7.+2.33*4.) * 0.093 !m2
ft_fsa(i,k) = 1.
else
! partial scale
ft_sa(i,k) = wqv * 0.028317 !m3
! wqv/(4.+1.33*4.) * 0.093
end if
sp_bpw(i,k) = 10. !m overflow weir width
ft_pd(i,k) = 1524. !mm
ft_dep(i,k) = 420. !mm
ft_h(i,k) = 1200. !mm
else
!Evaluate unit variables given by users
if (sf_typ(i,k)>3) sf_typ(i,k) = 1
if (sp_sa(i,k)<1) then
!City of Austin Design Guideline 1.6.5
sp_pvol(i,k) = wqv * 0.028317 !m3
sp_sa(i,k) = sp_pvol(i,k) / 1.5 !assume 1.5m depth for sed pond
end if
if (sp_pd(i,k)<0.1) sp_pd(i,k) = 152.4 !mm diameter, equivalent to 6in
if (ft_h(i,k)<5) ft_h(i,k) = 1200. !mm
if (ft_sa(i,k)<1) then
if (sf_typ(i,k)==1) then
ft_sa(i,k) = wqv/(7.+2.33*ft_h(i,k)/304.8) * 0.093 !m2
ft_fsa(i,k) = 1.
else
ft_sa(i,k) = wqv * 0.028317 !m3
ft_fsa(i,k) = 1. /(4.+1.33*ft_h(i,k)/304.8)
end if
end if
end if
!Outflow control
if (sp_qfg(i,k)==0) then
sp_pd(i,k) = sqrt(4. * 2. * sp_sa(i,k) * 1.5**0.5
& / (0.6 * 172800. * 19.6**0.5) / 3.14159) * 1000. !mm
end if
if (ft_qfg(i,k)==0) then
ft_pd(i,k) = sqrt(4. * 2. * ft_sa(i,k) * 1.5**0.5
& / (0.6 * 172800. * 19.6**0.5) / 3.14159) * 1000. !mm
end if
!Orifice pipe for sand filter should be equal or larger than
!sedimentation pond outlet pipe for full-type SedFils
if (ft_pd(i,k)<sp_pd(i,k)) ft_pd(i,k) = sp_pd(i,k)
if (ft_dep(i,k)<100) ft_dep(i,k) = 100.
if (sf_ptp(i,k)>1) sf_ptp(i,k) = 1
! if (sf_typ(i,k)==1) sf_ptp(i,k) = 0 removed by Jaehak 2014
! if (sp_pd(i,k)>254) sp_pd(i,k) = 254. ! max 10inches dia
if (sp_pd(i,k)<10) sp_pd(i,k) = 10. ! min 10mm dia
! if (ft_pd(i,k)>254) ft_pd(i,k) = 254. ! max 10inches
if (ft_k(i,k)<1) ft_k(i,k) = 1.
if (ft_dp(i,k)<0.0001) ft_dp(i,k) = 0.02
if (ft_dc(i,k)<0.01) ft_dc(i,k) = 0.762
if (ft_por(i,k)<0.1) ft_por(i,k) = 0.45
if (tss_den(i,k)<0.5) tss_den(i,k) = 0.5
if (ft_alp(i,k)<0.1) ft_alp(i,k) = 0.1
if (sf_im(i,k)<0.or.sf_im(i,k)>12) sf_im(i,k) = 0
if (sf_iy(i,k)<1000.and.sf_iy(i,k)>0) sf_iy(i,k) = 0
if (sf_iy(i,k)==0) sf_iy(i,k) = iyr
if (sf_im(i,k)==0) sf_im(i,k) = 1
if (ft_fsa(i,k)==0) ft_fsa(i,k) = 0.85
if (sf_typ(i,k)==1) ft_fsa(i,k) = 1
if (sf_typ(i,k)==1) then
write(77778,'(a37)') 'Full type sed-fil selected'
elseif (sf_typ(i,k)==2) then
write(77778,'(a40)') 'Partial type sed-fil selected'
else
write(77778,'(a43)') 'Sedimentation pond only selected'
endif
if (sf_typ(i,k)==1.or.sf_typ(i,k)==3) then
write(77778,'(a18)') 'Sedimentation pond'
write(77778,'(a17,f10.1,a4)') 'Total volume =', sp_pvol(i,k),'m^3'
write(77778,'(a17,f10.1,a4)') 'Surface area =', sp_sa(i,k),'m^2'
write(77778,'(a17,f10.1,a3)') 'Drain Pipe Dia =', sp_pd(i,k),'mm'
write(77778,'(a17)') ''
endif
if (sf_typ(i,k)==1.or.sf_typ(i,k)==2) then
write(77778,'(a11)') 'Sand Filter'
write(77778,'(a17,f10.1,a4)') 'Surface area =', ft_sa(i,k),'m^2'
write(77778,'(a17,f10.1,a3)') 'Max ponding =', ft_h(i,k),'mm'
write(77778,'(a17,f10.1,a3)') 'Filter depth =', ft_dep(i,k),'mm'
write(77778,'(a17,f10.1,a3)') 'Drain Pipe Dia =', ft_pd(i,k),'mm'
write(77778,'(a17)') ''
end if
end do
return
end