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any quistions .........

Post by E _ Ahmed Hasan on Thu 22 Jan 2009, 1:09 am

ya gama3a law 7ad 3andoh ay so2al ye7otoh hena we ay 7ad 3aref el gawab yeb3atholna be7eth nesa3d ba3d 3la 2d ma ne2der
da 7ale beta3 so2al 10 sh 1 akeed mesh ha2der a2ol enoh perfect 100% laken ana moktane3 bel7al da fa plz ay 7ad yeshof mistake yesa7a7holna 3latol
belnesba llemo3adla Q= C I A el units elle ana esta5demtha kaltale :
Q cfs
I inch/hr
A acres

la2ne la2et masa2l ma7lola bel units de we ba3d keda ba7wel el Q le m3/s
da link el mas2ala

http://rapidshare.com/files/187374522/q_10__sh_1.rar.html
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Post by E _ Ahmed Hasan on Thu 22 Jan 2009, 4:35 pm

ana faker en kan fe klam mn elmo3den 3la msa2l 11 & 12 sheet 2 elle beyt7alo be thessin method & contor method enhom mesh gayeen fe el exam , sa7 wala eh ?
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contor

Post by fahd2 on Thu 22 Jan 2009, 9:44 pm

contor bas hia el aldktor al msh gaia
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Post by GEHAD on Thu 22 Jan 2009, 10:03 pm

السلام عليكم يا احمد لو سمحت لى اعلق على حل مسالة10 شيت 1 اولا البخر انت جايب حجمه لمساحة الحوض كله لكن هو لمساحة الخزان
what i mean is v(evp)=(40/1000)*(50*1000^2)=2*10^6
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Post by GEHAD on Thu 22 Jan 2009, 10:22 pm

2nd i'll comment on u can solve this problem in 2 steps instead of getting Q but u r not wrong i'll give u my answer but if i have something wrong plz tell me
1st: v(runoff)=v(rainfall)*runoff coeff
v(run off)=v(in)
then: V(in)=(1850/1000)*(250*1000^2)*(0.45)=208.125*10^6
V(out)=v(evp)+v(withdrawn)
vout=2*10^6+vwithdrawn
deltastorage(s)=1-0.85
then v(in)-v(out)=ds
so u can get v(withdrawn)
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Post by E _ Ahmed Hasan on Thu 22 Jan 2009, 11:01 pm

thanks fahd2 soo much



thanks alot ya gehad bas if u plz :
1st : wada7ele akter ana leh ma5dosh el evaporation elle 7asal fe el 7od ma3aya ? leh atagahloh ?5asatan enoh ma7adedlesh en el evaporation da lel5azan bas
2nd : V(runoff)=V(rainfall)*runoff coff . elkanon da gebna menen la2n da keda hay2asr 5otowat el 7al kteeer w ana mashoftosh 2bl keda ???
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Post by GEHAD on Thu 22 Jan 2009, 11:11 pm

انا جبته من سنه 2 لما كنا بناخذ هيدرولوجى وثانيا بالنسبه للبخر اولا هقلك شئ بفهمى انا مش بالضرورة يكون ده الصح 100% بص انا اللى فهمته ان الحوض بيكون فيه ميل الميل ده مثلا لو كببير يبقى البخر هيكون قليل لو فكرت فيها هتفهم قصدى هو مذكرش شئ عن الميل ولا خصائص الحوض فانا هاخذ الخزان على اساس انه مسطح وفيه مياه والشمس هتسقط عليه ويحصل بخر
فى شئ تانى ان لقيت فى محاضرات السنة ديه د/اشرف ادانا مساله عن حوض ووراه خزان ومن ضمن الاحجام حاسب حجم البخر بانه ضارب فى مساحة البحيرة ده اللى انا كتباه وانت يا احمد ممكن تتاكد من كلامى برده من حد
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Post by E _ Ahmed Hasan on Thu 22 Jan 2009, 11:29 pm

بالزبط انا كاتب برده الحتة اللي انتي بتقولي عليها دي بتاعت الدكتور اشرف عشان كده حسبت البخر اللي حاصل من البحيرة او الحوض دا
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Post by engy on Fri 23 Jan 2009, 12:24 am

bos ya ahmed ana ma3 guehad fe 7ekayet el evaporation la2n law a5det el arkam recpectevly hayb2a el evaporation bey7sal lel5azan mech lelcatchement as simple as that Very Happy
bas ba2a 7ekayt el Q hwa ana moktane3a aktar bel CIA 5asatan eno medina el time period bas fe3lan e7na 7alenha fel sec zay maguehad bet2oul confused

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Post by E _ Ahmed Hasan on Fri 23 Jan 2009, 1:16 am

bas 7ewar ene a5od el arkam respectevly de maynfa3sh ya3ne efrede ghayrle fe el tarteeb sa3tha ba2a ha3mel eh !!!! aked ya engy mesh ha2ees el 2mor by this methode
we 3la fekra ana moktane3 beklam gehad we kalamk bas bardoh mesh 3aref el akeed eh ...
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Post by E _ Ahmed Hasan on Fri 23 Jan 2009, 3:05 pm

fe mas2ala rakm 6 sh 4 leh hangeeb kemt el ( I ) menen ? wala hantgahlha ? 3shan ne7seb el W index ?
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Post by VIOLETTE on Fri 23 Jan 2009, 3:48 pm

fel section kan 2ayl i=1cm bs el so2al el aham ha7tag lih el i fi 7sab el windex????????

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Post by E _ Ahmed Hasan on Fri 23 Jan 2009, 4:01 pm

mahe el Windx = F/T & F = P-R-I
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Post by VIOLETTE on Fri 23 Jan 2009, 4:13 pm

l2 da p-r/t

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Post by VIOLETTE on Fri 23 Jan 2009, 4:13 pm

eli bt2ool 3alih da el (fi)index

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Post by Mana on Fri 23 Jan 2009, 5:55 pm

Windez =F/t=(P-R-I)/t
fay index=(p-r)/T
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Post by VIOLETTE on Fri 23 Jan 2009, 6:08 pm

ahhhhhhh merci ya mana el zaher eni knt mtla5bata

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Post by E _ Ahmed Hasan on Fri 23 Jan 2009, 6:11 pm

la2 ya violette look :
Windex =F/T & F = P-R-I

Fi index = (P - R ) / T
la2en fe el fi index maba5deh fe e3tebare el initial obstraction ( I ) , betkon el 3elaka direct between R & F only so F = P-R
wa betale law get arsem el W index 3la hytograph beta3e hala2eha nezalt ta7t el fi inedx
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Post by VIOLETTE on Fri 23 Jan 2009, 6:22 pm

thx soooooooo much
tb ana 3ndi questions f sheet 5
1) problem 3 by2ool dry condition htfr2 m3aya 7aga f 7sab el c
2)problem 4 Q=i(c1a1+c2a2....)wala Q=i*(c1a1/atotal+c2a2/atotal+..)
3)problem 9 bta3t el lc el mafrood n7faz el kawanin di?

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Post by E _ Ahmed Hasan on Fri 23 Jan 2009, 10:35 pm

eh heya el scs methode ?
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Post by tatooo on Fri 23 Jan 2009, 10:49 pm

fe 7ad 7l exam 2008 ya ret el 7lo y2ol
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