DH_Ch8_EPANET_SWMM.ppt

1CP THOT NCChng 8: Phn mm EPANET v SWMM

PGS. TS. Nguyn Thng1

TRNG I HC BCH KHOA TP. HCM

Khoa Ky Thuat Xay Dng - BM KTTNN

Ging vin: PGS. TS. NGUYN THNG

E-mail: [email protected] or [email protected]

Web: http://www4.hcmut.edu.vn/~nguyenthong/

Tl. (08) 38 640 979 - 098 99 66 719

CP THOT NCChng 8: Phn mm EPANET v SWMM

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NI DUNG MN HCCHNG 1: Tng quan v cp ncCHNG 2: Ngun nc & Cng trnh thu nc.CHNG 3: Mng li cp nc khu vc.CHNG 4: Mng li cp nc bn trong.CHNG 5: Mng li thot nc bn trong.CHNG 6: Mng li thot nc khu vc.CHNG 7: Tng quan v x l nc thi.CHNG 8: Phn mm EPANET v SWMM



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TNH TON TNH TON MNG LI MNG LI

CP NC VICP NC VIPHAN MEM EPANETPHAN MEM EPANET


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MNG LI CP NC KHU VC

MNG LI VNG

Ngun nc

i nc

im ly nc

1 2 3 4 5

67 8 9

13121110

q3I

II III

IV

V

VI


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PHAN MEM EPANETay la phan mem cho phep tnh toan thuy lc mang

li ng ong co dong chay co ap:TOM TAT LY THUYET

Ton that nang lng cho moi oan ng ong (i,j):

Va tai moi nut ta co:

Qij: lu lng trong ng ong (ij) Hi: cot nc o ap tai nut i (the nang + ap nang) qk: lu lng tieu thu (+) hoac cap vao (-) tai nut k

ni j ij ijH H h rQ

ik kj ki j

Q Q q 0 ng vo nt

ng ra khi nt

L/l ly dng


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p dng 2 phng trnh trn cho tonb cc on ng trong mng li vcc nt s nhn c h phngtrnh (phng trnh phi tuyn).

Kt hp vi cc phng trnh biudin iu kin bin.

Gii bng phng php lp tm ctnc o p H ti cc nt.

Ch : y l bi ton m phng theothi gian.


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THONG SO BAN AU Nut;oan ong;ai nc;Be nc (ngun nc v hn); Bm; Options (quy luat thuy lc, thi

gian mo phong, n v,).


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NUT (Cao o, qtb, N0 pattern)

Cao o (m)Qtb (l/s)N0 pattern:1,2,15,

N0 pattern h s khng iu ha Ki (Qi/Qtb)


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PATTERN N0 1

Ki 24 gi tr tng ng 24h

trong ngy


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OAN ONG (L, d)

L(m) d(mm)


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AI NC Cao o ay aiElevation (m), chieu saunc ban au (m), chieu sau toi thieu (m), chieu sautoi a (m), ng knh ai (m), nu i hnh tr.


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B CHA

NGUN CP NC V HN


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BM ng cong c tnh bm (Q,H),

Curve, v Pattern (option)


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OPTION Quy luat thuy lc:


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Litre Per Second(n v lu lng)

Hazen Williams(Quy lut thy lc)


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OPTION (TIME)

THI GIAN M PHNG (h)(24h or 48h or 72h,)


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V DU 1V DU 1


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V du: Dung EPANET e mo phong hoatong cua mang li trong 72h.

BE NC

BM

NUT

OAN ONG AI NC


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XEM V DU XEM V DU vidu0.NETvidu0.NET

Download: Download: ..\\BAI GIANGBAI GIANG

CapthoatnuocCapthoatnuoc


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n v s dung trong mo phong :H thng n v SI.- Lu lng (l/s)- Ton that nang lng theo Hazen-Williams- Chieu dai (m)- ng knh ong (mm)- Cao trnh (m)- Thi gian mo phong : 72 h.


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SO LIEU NUTNUT 2 3 4 5 6

Cao o (m)

5 10 12 13 12

qtb(l/s) 0 20 25 10 25

Pattern 1 2 1 1


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SO LIEU NG ONGOng 1 2 3 4 5 6

L(m) 250 250 250 250 250 25

d(mm) 300 200 200 200 200 400


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SO LIEU AI NC (Hnh tr)Cao

o ay (m)

Chieu sau nc

b/au (m)

Chieu sau toi

thieu (m)

Chieu sau toi a (m)

ng knh

ai (m)

20 3 3 8 6


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THONG SO BM

Flow (l/s) Head (m)

80 35


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PATTERN N0 1


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PATTERN N0 2


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TIME OPTION


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HYDRAULIQUE OPTION


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EPANET EPANET VIDU3.NETVIDU3.NET


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V du 1: Dung EPANET e mo phong hoat ong cua mang li trong 72h.

AI NCNUT MANG

LI

NG ONG

BE

BM

NG ONG


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n v s dung trong mo phong :- Lu lng (l/s)- Ton that nang lng theo Hazen-

Williams- Chieu dai (m)- ng knh ong (mm)- Cao trnh (m)Thi gian mo phong : 72 h.


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So lieu ban au cho mang li nh sau :

Nut 2 3 4 5 6Cao o 0 10 12 14 10Lu lng(l/s)

0 20 25 15 20

N0

Pattern1 2 2 1


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Pattens N0 1


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Pattens N0 2


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ng ong:

ai nc:

Ong 1 2 3 4 6L(m) 500 250 250 250 40D (mm) 300 250 200 200 400

Cao o ay ai nc (m) 30Chieu sau nc ban au (m) 6 (*)

Chieu sau nc min (m) 2Chieu sau max (m) 6ng knh ai (m) 6


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(*) Thong thng chieu sau nc ban au chotrong ai nc la ngau nhien , do o vimo phong lan au th sau chu ky mc ncai se khong ve ung nh ban au gia nh.

e hieu chnh ch can lay so lieu mc nc aicuoi chu ky mo phong va gan gia tr nay chomc nc ban au cua ai.


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So lieu ve bm 7N0 bm 7

Lu lng bm (l/s) 80

Cot nc bm (m) 30

N0 ng ac tnh may bm

Pattern


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GIAO DIENGIAO DIENEPANETEPANET


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Hng dan nhap so lieu vao EPANET

Chay CT

H/Chnh hnh

Tao nut

Tao be cha

Tao ai

Tao bm

Tao ng ong

Xem ket qua


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NH NGHA N V S DUNGVao ca so Browser :/ Options / HydraulicsFlow Units LPSHeadloss FormulaH-W


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THI GIAN KEO DAI MO PHONG : 72H Vao ca so Browser : / Options / TimesTotal Duration 72


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Hien th ky hieu nut, ng ong, ai nc be cha, View / Options / Notation va chon:


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- Hien th ky hieu hng dong chay :View/Options/FlowArrows :Arrows Style : OpenNhap so lieu nut : V du nut 2.


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Nhap solieupattern :Browser/Data/Paterns/ ... Add (new)

pattern N01


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Trong trng hp pattern chonhu cau nc sinh hoat trongmot chu ky tnh ta co gia trtrung bnh cac he so bang 1:Avg. =1.


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PattenN06 chobm so 6.

Co the dung pattern nay e xac nh gi hoat ongcua bm trong chu ky dung nc.


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ng ong 1Chieu dai:Length=500mng knhDiameter200mm.


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ai ncso 12.Cao oay ai

Chieu saunc t=0

Chieu sauNc min& max

ng knhai


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Bm so10 & 6:

Browser/Data/Curves


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ng actnh bm(PumpCurve)ID 15.

Lu lng(l/s)

Cot nc(m)

10


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MOTSOKETQUA

Lu lng trong cac ng ong


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LuLngBm10


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aiTANK12

Chieusau nctrongaitheo t


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Vantoc

Ong 1

Ong 3

Ong 2


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Apsuat

Nut 2

Nut 3

Nut 4


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Nut 6

Nut 8

Head (z+p/g)

11


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Nut 6

Pressure (p/g)

Nut 6

Nut 8


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Can bang lu lng vao va ra khoi mang li :


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PHAN MEM TNH PHAN MEM TNH THOAT NC MATHOAT NC MA

SWMMSWMM((SStorage torage WWater ater

MManagement anagement MModel)odel)


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PHNG PHP THCH HP Dng chy n nh u, Ma xy ra trn ton b khu

vc l nh nhau. Din tch khu vc tng i b

(< 5 10km2).


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PHAN MEM SWMM Phan mem cho phep tnh toan he

thong thoat nc ma o th hoackhu vc:

- Dong chay trong ong khong hoacco ap.

- Bien : khong oi hoac oi theo thigian.


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PHAN MEM SWMM - Co the xet s lam viec cua ho ieu

hoa.- o doc at cong

12


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iem thoat nc khu vc

ng ong thoat nc

iem thu nc khu S3

Tram ma

Dien tch khu thoat

nc

iem nut mang li


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Lu vc S1 S2 S3 S4Tram ma lien he Gage1 Gage1 Gage1 Gage1iem thoat nc J5 J1 J3 J6Ty le d/tch khong

tham (%)50 50 50 50

Dien tch (ha) 10 10 10 10

C/rong trung bnh (m) 400 400 400 400

o doc trung bnh (%) 0.5 0.5 0.5 0.5

Mo hnh tham GREEN GREEN GREEN GREEN

AMPT AMPT AMPT AMPTSO LIEU TIEU KHU VC


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ng ong tron thoat nc:Ong C1 C2 C3 C4 C5

Hmax(m) 0.75 0.75 0.75 1 1

L (m) 700 500 800 600 500

n 0.01 0.01 0.01 0.01 0.01


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Nut mang li:Nut J1 J2 J3 J4 J5 J6 Out1

Cao o mat at (m)

19.5 19 19 18 19.5 19.5 17

Chieu sau t ay en mat at (m)

2 2.5 4 2.5 2 2

ieu kien bien FREE


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MA TREN LU VC Tram ma Gage1 tren lu vc. So

lieu ma di dang chuoi thi gian, tnh bang mm/h.

13


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CHON N V VA LOAI MO HNH ONG LC CHO LU VC

He n v SI : lu lng LPS (l/s) Mo hnh thuy lc loai song ng lc :

dynamic wave Mo hnh tham vao at : Green Ampt

Chng trnh tnh dng chy mt to ra t s liu ma trn tiu khu vc.


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THTHI GIAN I GIAN M M PHPHNGNG


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14


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Mo phong3 h27/11/2004


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Tieu khuS1

iem thoatnc

Ty le DTk. tham

Tram malien he

Dien tch (ha)Chieu rong TB

Mo hnhtham

o docTB


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iem thoat nc khu vc

ng ong thoat nc

iem thu nc khu S3

Tram ma

Dien tch khu thoat

nc

iem nut mang li


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ngong C1

Ong tronChieu saunc max

Chieu dai(m)

Ten nut lienket au

He so nham(defaut)


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So lieunut J1

Cao trnh ay cong (m)

Chieu sautoi a tay cong enmat at (m)


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TrammaGage 1 n v ma dangCng o (mm/h)

Chui t/gian

Ten filen v (mm)

15


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Cngo ma Ten file

chuoi thi gian

mm/h


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XUXUT T KKT T QUQU


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XUT KT QU

PGS. Dr. Nguyn Thng


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Ket qua:

ng matNc trac docJ5-J2-J4-Out1Luc 0h45Ngay 27/11


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16


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Chieusaunctheo ttai nut.

Nut J4Nut J2

Nut J1

Nut J6Nut J3


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EXAMPLES

\\ VIDU_SWM \vd111.INP\\ VIDU_SWM \vd222.INP


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HTHT

PGS. Dr. Nguyn Thng

Documents

DH_Ch8_EPANET_SWMM.ppt