COMPUTATIONAL FLUID DYNAMICS STUDY ON IMPROVEMENT OF THERMAL-HYDRAULIC PERFORMANCE IN THE INTERMEDIATE HEAT EXCHANGER OF A PROTOTYPE GEN-IV SODIUM-COOLED FAST REACTOR

2018 ◽  
Vol 23 (3) ◽  
pp. 1-9
Author(s):  
S.H. Ryu ◽  
Y.S Joo ◽  
T.H Lee
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Heat Exchanger ◽  
Fast Reactor ◽  
Hydraulic Performance ◽  
Intermediate Heat Exchanger ◽  
Gen Iv

Predicting and Improving Hydraulic Performance of Pumping Suction Intakes By Computational Fluid Dynamics (CFD)

2020 ◽  
Author(s):  
Ashraf Ghanem ◽  
Gamal Elsaeed ◽  
Mohamed Fayek Abd Rabbo ◽  
Mostafa Abuzeid ◽  
Elzahry Farouk Elzahry
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Hydraulic Performance ◽  
Computational Fluid Dynamics Cfd

Fish-friendly design of an axial flow pump impeller based on a blade strike model

2019 ◽  
Vol 234 (2) ◽  
pp. 173-186 ◽  
Author(s):  
Qiang Pan ◽  
Weidong Shi ◽  
Desheng Zhang ◽  
BPM van Esch ◽  
Ruijie Zhao
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Behavior ◽  
Integrated Design ◽  
Axial Flow ◽  
Hydraulic Performance ◽  
Fish Mortality ◽  
Computational Fluid Dynamics Analysis ◽  
Axial Flow Pump ◽  
Flow Pump

With environmental awareness growing in many countries, governments are taking measures to reduce mortality of migrating fish in pumping stations. Manufacturers seek to develop pumps that are less damaging to fish and still provide good hydraulic performance, but little is known about the implications design modifications may have on internal flow characteristics and overall hydraulic performance. In this paper, an integrated design method is proposed that combines a validated blade strike model for fish damage and a computational fluid dynamics method to assess the pump performance. A redesign of an existing, conventional, axial flow pump is presented as an example in this paper. It shows how the design of the impeller blades was modified stepwise in order to reduce fish mortality while its hydraulic performance was monitored. Computational fluid dynamics analysis of the flow near the hub of the highly skewed blades indicated that unconventional design modifications were required to ensure optimum flow behavior. In the final fish-friendly design, the risk of fish mortality has reduced considerably while the hydraulic performance of the pump is still acceptable for practical application.

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