1. The document discusses fluid flow and the Bernoulli equation. It presents equations for fluid dynamics including the continuity equation and Bernoulli's equation. 2. Methods for calculating flow velocity, flow rate, water level, and hydraulic radius in open channels are provided. Manning's and Chézy equations for uniform flow are presented. 3. Parameters for flow resistance coefficients for different channel materials are listed, along with typical values for flow depth and hydraulic radius under uniform flow conditions.

1. Chapter 5
RbePTrMhUrénvtßúrav nig
smIkarEb‘rnuyI
Type découlement du liqude et equation de Bernoulli
GIuRdUDINamiuc
KWsikSaGMBIclnaemkanicénvtßúrav .
ehIyrMhUrrbs;clnaTwkKWvaTak;TgeTAnig ÷
1-kM / lMsm<aF nig kM / lMkkit xagkñúg
2-kM/lMTIRbCMuTm¶n; .
rMhUrénclnaTwkmanEckecjCaBIrya:gKW ÷
k ¦rMhUrGnaciéRnþ ³
KWcariklkVNHtamcMNucnimYy²EdlrMhUrénel,Ó
n nigsm<aFERbRbYlGaRs½ytam eBlevla t .
x¦ rMhUrGniéRnþ ³
KWCarMhUrEdlel,ÓnminERbRbYltameBlevla.
rMhUrenHEbgEcgCaBIreTotKW

2. - rMhUrÉksNæan ³ el,Ón nig
épÞxñat;rbs;crnþminERbRbYleTAtamRbEv
gbeNþayRClg .
I.CMralGIuRCUlIk
II.CMral)atRbLay
b.rMhUrminÉksNæan³
el,ÓnnigépÞxñat;rbs;crnþéRbRbYleTAtamxñatbe
NþaénRClg.
cMNaM ³ rMhUrenHERbRbYlCanic© .
c.rMhUr ³
rMhUrrbs;vtßúragmanEckCa
rMhUresrInigrMhUredaybnÞúk
> rMhUresrI ³ RbLay , swÞg , ERBk ,
bMBg;lUredayKµanbnÞúk
>rMhUrmanbnÞúk ³ TwkhUrkñúg
bMBg;Edlmansm<aFCYyrujbEnþm .

3. * ExSéncrnþ nig)ac;éncrnþ
* carwklkVNHGIuRCUlicénxñatcrnþrbs;FarTwk
nig
el,ÓnmFümenAkñúgGIuRCUlicmancarwklkVNHd
UcteTA ÷
( )hmhbS +=−)1
2
12)2 mhbP ++=−
30-R kaMGIuRCUlic
P
S
R =
S-épÞxñat;rMbUar
P-brimaRtesIm
-cMeBaHbMBg;vij 4
d
R
¬ d Ggát;pwt ¦
-el,ÓnmFüm ( )s
m
v
Q
v =
Q=ω. v ( m³ s )

4. - sMrab;rMhUresrICael,ÓnenARtg;cMNc; 0.6 h .
cab;BIépÞTwkcuHeRkam .
- sMrab;rMhUredaybnÞúkCael,ÓnenARtg;cMNuc
- 0.223 r KitCasMbkbMBg;mkdl;G½kS .

5. viFIedaHRsaykñúgkarKNnaRbLayTwk
RbLayragctuekaNBañy
b-)atRbLay ( m)
m-epIgeTvRbLay
θ
ϑ
θ g
tg
m
m
tg cot
11
==⇒=
B-TTwgrgVHénépÞTwkxagelI ( m )
ω-RkLaépÞénmuxkat; ( m² )
χ- brimaRténmuxkat;esImrbs;RbLay ( m )
R-kaMGIuRCUedWRk ( m0
)
C- emKuNénbrimaNFarTwk m 0,5 s
Δ-
kMBs;FaraTwksuvtþiPaB ( m )
n-PaBeRKImrbs;dI b¤ TMrrbs;Twk
- rUbmnþEdlRtUvedaHRsayman ÷

6. ( ) 2
).1 mhbhhbmhW +=+=
(m²)
( ) ( ) 2
1
22
1212).2 mhbmhb ++=++=χ (m)
χ
W
R =).3 (m)
2
2
12 mhb
mhbh
R
++
+
=
R
n
C *
1
).4 =
eday ny 5.1=
; mRm 11.0 〈〈
( Pavlosky ) ny 3.1= ; mRm 13.0 〉≥
-
6
1
*
1
R
n
C =
( Manning )
-
( )RKC lg72.17 +=
b¤ n
K
72.17
1
=
- 72.17
1
+=
n
C lgR
-
λ
gC 8= ( Darcy )
λ emKuN én Darcy . rYcvaTak;TgeTAnig
Re ( cMnYnerNul ) .
dv.
Re =
Re manEckCa ÷
+ Recr = 2320 muxkat;ragmUl
+ Recr = 580 muxkat;minmUl
cMeBaHrbbTwk ÷
LamIENr Re < Re cr

7. TYrb‘uyLg; Re > Re cr
5). B = b + 2mh (m)
RbLayrg)ara:bUl
tamsmIkar x2
= 2py ( P
CatEmøénxñatRbEvg ) b¤ ( P
Ca)ara:Em:Rt)a:ra:bUl )
τ2
1
=m
p
h=τ
CMerArWLaTIv
H = h + Δ ( m )
hphBhw .2
3
4
3
2
==
( ) ( )[ ]ττττχ 212ln212 ++++= P
( ) ( )ττττ 212ln212 ++++=N
PN=χ
PN
Bh
R
3
2
==
χ
ω
cMeBaH B ≥ h eKyk B≈χ

8. RbLyrag ctþúekaNEkg
bB
hR
B
hB
=
=
=
=
χ
ω .
viFIKNnael,ÓnTwkmFüm:
ω
ω
Q
vvQ =⇒= .
m/s
iRcv .= ( Chézy ) m/s
l
hegR
v ⋅=
λ
8
KWekItecjBIrUbmnþ g
v
d
l
hl
2
2
⋅⋅= λ
gRIv ⋅=
λ
8
; l
he
I =
gRIu =∗
el,ÓnDINamiuc
viFIKNnabrimaNFarTwk Q m³ / s
Q = v.w m³/s
iRcwQ ..=
b¤ iRcwQ ..=
( m³ / s )
Et Rcwk .=
dUecñH iKQ .=
( m³ / s )
ikRicwwQ === ..ν ( m³ / s )
edIm,IeGayrMhUrTwkkñúgRbLaymanlkçN³l¥
KWeKRtUvBinitüeTAelIel,ÓnTwk
v env = ≤ v mfüm ≤ v aff
AQ0.2
≤
w
Q
≤ k.Q0.1
v env - el,ÓnkkPk;
v aff - el,ÓneRcaHdac;

9. cMeBaH K
xSac;mFüm k = 0.45 - 0.50
xSacFM 0.5 - 0.6
fµtUc 0.6 - 0.75
fµmFüm 0.75 – 0.90
fµ 1.30 – 1.60
dIl,ayxSac; 0.53
dIGIdæmFüm 0.62
dIGidæexSay 0.52
l,aydIGideRcIn 0.58
dIGidæ 0.75 - 0.85
cMeBaH A
A = 0.33 ā W < 1.5 m / s
A = 0.44 ā W = 1.5 eTA 3.5 m/s
A = 0.55 ā W > 3.5
cMNaM - )atRbLaysMrab;eRsaceRsaB
mantémøcab;BI b = 0.4 m eLIgeTA .
vIFIbgðajGMBItémø Δ ( m )
Q m³ / s < 1.0 1-10 10-30 > 30
Δ m 0.25 0.40 0.50 0.60