ISSN: 1813-0410

Keywords : Tunnel gate


Prediction Downpull Force on Tunnel Gate with Different Gate Lip Geometry

Shaymaa A. M. Alhashimi; Mustafa T. Al-Kifae; Rassul M. Almaini

journal of kerbala university, Volume 6, Issue 2, Pages 273-288

Vertical lift tunnel gates are subjected to hydrostatic and hydrodynamic forces produced as a result of operating condition over a wide range of partial openings, discharge and heads. Among these forces is the unbalanced vertical hydrodynamic force resulting from the difference between the downward force on the top of gate within the gate shaft and the upward force on the gate bottom, the net resultant of these two forces is termed as a downpull force. The estimation of downpull force requires the determination of the top and bottom pressure coefficient (KT and KB) which affected by the geometry of gate bottom and the rate of flow passing over the top surface of gate. A two-dimensional CFD model is applied to predict a downpull coefficient (KT and KB) which is named as FLUENT program. The finite volume method is employed on a Reynolds averaged Navier-Stokes equations. The turbulence effects are simulated using the standard (k-ε) model. The simulation model is used for relevant experimental data obtained from hydraulic model tests conducted in laboratory for nine gate lip shape with nine gate openings for each gate lip geometry. The procedure is applied to estimate the pressure coefficients (KT and KB) for different gate bottom geometry. The results illustrate that the inclined gate lip shape with angle of (θ = 35o) given a minimum positive values of downpull force. Also, the downpull coefficient depends mainly on the magnitudes and the distribution of (KB) for a given value of (b2/b1). A general statistical model is built to predict the bottom pressure coefficient for any gate lip geometry.

A biochemical study of the effect of Neonatal Jaundice on bilirubin concentration level in newborns

Saba Abd Almunam; Rehab Jasem; Master; Rehab Jasem; Mohammed Nofill; Saba Abd Almunam; Areeg Shihab Ahmad; Areeg T.H. Abou-Dareb; Haider Y. Hammod; Adnan H. Ali; Rawa K.Ibrahim; Rewayda Razaq Mohsin; Rewayda Razaq Mohsin; Ali Fawzi Najm AL-Shammari; Alaa M.Alrubae; Rashid J. Abdulah; Ahmed Abdulhadi Ahmed; Haider Galil Al-Qurabi; Ali Abdulhussien Hassan; Eman jabbar K. Alghizzi; Rajaa Jabbar Kadhum; Nadia A. Al-Assady; Sahera G.Sayyah; Ayad I. Haddad; Ahmad A.Hasan; Bushra A.Hasan; EkramA.A; Mohammed K.J; Kawakib J.M; Mohammed J. S. Al-Haidarey; Dafer A. Al-Kufi; Meison A. Al-Selamy; Ibrahim M. Jassim; HASSANEEN JABBAR ABD; Taghreed M. D. Musa; Salam A. H. AL- Ameri; Reyadh M. Ahmed; Ali Aziz Abbas; Shaymaa A. M. Alhashimi; Mustafa T. Al-Kifae; Rassul M. Almaini; Firas Mohamed Abdul Ghani; Ali Farouk; Ahmed Sabeeh Abid Ali Al- Zubaidi; Eman Talib Kareem; ABDULJALEEL HUSSAIN ABD; SALAH NOORI ABBOOD; Hameed Aswad Mohammed; Mohammed Ali Radhy; Nawras Mohammed Shaheed Al-Dahan; Fadhil Ismail Shrrad Al-Taie; Ahmed Ali Abdulsahib Alkarimi; Muhanad Hayder; Sharifi; Hussein Ali Mohammed Al; Saher Ahmed Mohammed Al-Bassam; Maany Abd Al-Moneem Said; Hussein Hadi Abbas; Sareaa Maseer Gatya Al-Mayahie; Muhsen Cadem motleb; JawadKadhim Ali; Hassan Fadhil Al-Husseiny; Buthainah A. Ahmed

journal of kerbala university, Volume 6, Issue 2, Pages 83-89

تم تصميم هذه الدراسة للتحقق في تأثير مرض اليرقان الولادي على مستوى تركيز البيليروبن الكلي والغير مقترن في مصل الأطفال ألحديثي الولادة المصابين باليرقان الولادي (أبو صفار). ولتحقيق هذا الهدف تمت الدراسة على 60 طفل مريض, وقد دلت النتائج على زيادة معنوية ملحوظة (0.005 (p Keywords