This study simulates the flow through a small-scale open cross-flow hydraulic turbine and analyzes the turbine’s performance. The simulation employs a two-dimensional particle method that was used for the simulation of a small-scale impulse-type hydraulic turbine in a prior study. Flow in the turbine is successfully simulated, with the simulated turbine performance showing good agreement with experimental measurements. The simulations also clarify that the deterioration in performance with increasing water flow rate is caused by the degeneration of the radially outward flow between the rotor blades.
TakamatsuYFurukawaAOkumaK. Experimental studies on a preferable blade profile for high efficiency and the blade characteristics of Darrieus-type cross-flow water turbine. JSME Int J Ser II1991; 32: 149–156.
2.
NakajimaMIioSIkedaT. Performance of double-step Savonius rotor for environmentally friendly hydraulic turbine. J Fluid Sci Technol2008; 3: 410–419.
3.
NakajimaMIioSIkedaT. Performance of Savonius rotor for environmentally friendly hydraulic turbine. J Fluid Sci Technol2008; 3: 420–429.
4.
DerakhshanSNourbakhshA. Experimental study of characteristic curves of centrifugal pumps working as turbines in different specific speeds. Int J Exp Therm Fluid Sci2008; 32: 800–808.
5.
NakanishiYIioSTakahashiY. Development of a simple impulse turbine for nano hydropower. J Fluid Sci Technol2009; 4: 567–577.
6.
AlexanderKVGiddensEPFullerAM. Axial-flow turbines for low head microhydro systems. Renew Energy2009; 34: 35–47.
7.
SinghPNestmannF. Experimental optimization of a free vortex propeller runner for microhydro application. Experiment Ther Fluid Sci2009; 33: 991–1002.
8.
SinghPNestmannF. Experimental investigation of the influence of blade height and blade number on the performance of low head axial flow turbines. Renew Energy2011; 36: 272–281.
9.
StarkBHAndoEHartleyG. Modelling and performance of a small siphonic hydropower system. Renew Energy2011; 36: 2451–2464.
10.
NishiYInagakiTLiY. Study on an undershot cross-flow water turbine. J Ther Sci2014; 23: 239–245.
IioSOoikeSYamazakiM. Study on a waterfall type hydraulic turbine (Investigation of a flow direction control method by using a curved channel). Turbomachinery2012; 40: 745–753.
13.
UchiyamaTFukuharaHIioS. Numerical simulation of water flow through a nano-hydraulic turbine of waterfall-type by particle method. Int J Rotat Machine2013. Article ID 473842.
14.
KoshizukaSOkaY. Moving particle semi-implicit method for fragmentation of incompressible fluid. Nucl Sci Eng1996; 123: 421–434.
15.
KoshizukaSNobeAOkaY. Numerical analysis of breaking waves using the moving particle semi-implicit method. Int J Numer Meth Fluids1998; 26: 751–769.
16.
KhayyerAGotohH. Development of CMPS method for accurate water-surface tracking in breaking waves. Coastal Eng J2008; 50: 179–207.
17.
Amsden AA and Harlow FH. The SMAC method: a numerical technique for calculating incompressible fluid flows. Los Alamos Scientific Laboratory Report LA-4370, 1970.
