نتایج جستجو برای: flow curve

تعداد نتایج: 603047  

Journal: :Quarterly Journal of Mathematics 2021

Abstract A recent article [1] considered the so-called ‘ideal curve flow’, a sixth-order curvature flow that seeks to deform closed planar curves with least variation of total geodesic in L2 sense. It was critical analysis there length bound on evolving curves. is natural suspect therefore length-constrained ideal should permit more straightforward analysis, at case small initial ‘energy’. In t...

Journal: :Monatshefte für Mathematik 2011

Mohammad JavadZeynali, Omolbani Mohammadrezapour,

By far, different models for determining the relationship between the flow rate  and amount of precipitation have been developed. many models are based on regression models with limited assumptions. one of the most common methods for estimating  sediment of rivers is sediment rating curve. for better estimation of the amount of sediment based of sediment curve  rating equation, it is possible t...

Journal: :Journal of Mathematical Analysis and Applications 2018

Journal: :ACM Transactions on Graphics 2015

Sediment rating curve is an essential factor for many river engineering subjects and computations such as dredging, design of storage dams, river intakes design and sand mining management. Although, this curve is established using simultaneous measurement of flow and sediment transport discharges, however, due to lack of reliable data during flood events, it has limited reliability in flood con...

ژورنال: علوم آب و خاک 2016
اخروی, سیدسعید , اسلامیان, سیدسعید , حیدرپور, منوچهر , فتحیان‌پور , نادر ,

In addition to kinematic description of biological reaction, flow pattern plays an important role in designing constructed wetlands. This study investigates the effects of flow distribution on constructed sub-surface horizontal flow wetland with a length of 26 m, width of 4 m and 1% bed slope in order to understand internal hydraulic functioning patterns. Inlet configuration is selected as a va...

H Kashkuli H Mohammad Vali Samani Mehdi Habibzadeh,

The rating curve is the relationship between the water stage and the associated discharge in a givensection of a channel. In steady flow, this relationship usually has exponential type, whereas inunsteady it flow has a looped shape. Since direct developing of actual looped rating curve by usinghydrometric methods is merely possible, steady-state rating curve is commonly used as a downstreamboun...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
omolbani mohammadrezapour mohammad javadzeynali

by far, different models for determining the relationship between the flow rate  and amount of precipitation have been developed. many models are based on regression models with limited assumptions. one of the most common methods for estimating  sediment of rivers is sediment rating curve. for better estimation of the amount of sediment based of sediment curve  rating equation, it is possible t...

Journal: :journal of mechanical research and application 2012
h. javaniyan jouybari m. eftari m. r. shahhoseini f. ghadak m. rad

the main objective in this paper is creating a method for one-dimensional modeling of multi stage axial flow turbine. the calculation used in this technique is based on common thermodynamics and aerodynamics principles in a mean stream line analyses. in this approach, loss models have to be used to determine the entropy increase across each section in the turbine stage. finally, the analysis an...

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