DETERMINATION OF AVERAGED AXISYMMETRIC FLOW SURFACES AND MERIDIAN STREAMLINES IN THE CENTRIFUGAL PUMP USING NUMERICAL SIMULATION RESULTS

Jasmina Bogdanović-Jovanović, Dragica Milenković, Živojin Stamenković, Živan Spasić

DOI Number
10.22190/FUME170911026B
First page
479
Last page
493

Abstract


One of the most important aims in the turbo pump design is to achieve an optimal design of the pump impeller. The basic assumption in the design procedure of the impeller is that of the axisymmetric fluid flow. It can be confirmed or disputed by using the method presented in the paper, which uses the results of numerical simulation of fluid flow in the pump impeller. The method is actually a procedure for determining averaged axisymmetric flow surfaces and meridian streamlines. Furthermore, according to the obtained streamlines, a correction of the impeller blade geometry can be made (if the streamlines deviate significantly from the assumed axisymmetric ones). It is also possible to calculate the specific works of the elementary stages and compare them with the previous assumptions. The pump impeller torque can be calculated as well.

Keywords

Centrifugal Pump, Averaged Flow Surface, Meridian Streamlines, Numerical Simulations

Full Text:

PDF

References


Obradović, N., 1973, Basics of Turbomachinery, Gradjevinska knjiga, Belgrade, Serbia (in Serbian).

Babić, M., Stojković, S., 1990, Basics of Turbomachinery: operating principles and mathematical modeling, Naučna knjiga, Belgrade, Serbia (in Serbian).

Ristić, B., 1987, Pumps and Fans, Naučna knjiga, Belgrade, Serbia (in Serbian).

Krsmanović, Lj., Gajić, A., 2005, Turbomachinery - theoretical basics, University of Belgrade, Faculty of Mechanical Engineering Belgrade, Belgrade, Serbia (in Serbian).

Voronjec, K., Obradović, N., 1973, Fluid Mechanic, Gradjevinska knjiga, Belgrade, Serbia (in Serbian)

Lakshminarayana, B., 2002, Fluid Dynamics and Heat Transfer of Turbomachinery, John Wiley & Sons, Inc., New York, USA.

Bogdanović-Jovanović, J.B, Bogdanović, B.P, Milenković, D.R., 2012, Determination of Averaged axisymmetric flow surfaces according to results obtained by numerical simulation of flow in turbomachinery, Thermal Science, 16 (Suppl.2), pp. 647-662.

Bogdanović-Jovanović, J., 2014, Determination of Averaged Axisymmetric flow in hydraulic turbomachinery runner, PhD Thesis, University of Niš, Faculty of Mechanical Engineering, Serbia, 263p

Yedidiah, S., 2008, A Study in The Use of CFD In The Design of Centrifugal Pumps, Engineering Applications of Computational Fluid Mechanics, 2(3), pp. 331-343.

Stuparu, A., Resiga, R., Muntean, S, 2011, A New Approach in Numerical Assessment of the Cavitation Behaviour of Centrifugal Pumps, International Journal of Fluid Machinery and Systems, 4(1), pp. 104-113.

Tan, M.G., He, X.H., Liu, H.L., Dong, L., Wu, X.F., 2016, Design and analysis of a radial diffuser in a single stage centrifugal pump, Engineering Application of Computational Fluid Mechanics, 10(1), pp. 500-511.

An, Z., Zhounian, L., Peng, W., Linlin, C., Dazhuan, W., 2015, Multi-objective optimization of a low specific speed centrifugal pump using an evolutionary algorithm, Engineering Optimization, 48(7), pp. 1251-1274.

Etinberg, I.E., Rauhman, B.S., 1978, Hydrodynamics of hydraulic turbines, Sent Petersburg, Russia.

Stamenković, Ž., Bogdanović-Jovanović, J., Manojlović, J., 2013, Determination of centrifugal pump operating parameters in turbine operating regime, Proceedings, 16. Symposium on Thermal Science and Engineering of Serbia, Sokobanja, Serbia, pp. 846-855.

Ferziger, J.H., Peric, M., 2002, Computational methods for fluid dynamics, Springer, Berlin, Heidelberg.

Casey, M., 2004, Best practice advice for turbomachinery internal flows, QNET-CFD Network Newsletter (Thematic Network For Quality and Trust in the Industrial Application of CFD), 2(4), pp. 40-46.

Bogdanović-Jovanović, J., Bogdanović, B., Božić, I., 2014, Design of small bulb turbines with unequal specific work distribution of the reunner's elementary stages, Facta Universitatis, series: Mechanical Engineering, 12(1), pp. 73-84.

Bogdanović, B., Spasić, Ž., Bogdanović-Jovanović, J., 2012, Low-Pressure Reversible Axial Fan Designed with Different Specific Work of Elementary Stages, Thermal Science, 16(Suppl.2), pp. S605-S615.




DOI: https://doi.org/10.22190/FUME170911026B

Refbacks

  • There are currently no refbacks.


ISSN: 0354-2025 (Print)

ISSN: 2335-0164 (Online)

COBISS.SR-ID 98732551

ZDB-ID: 2766459-4