Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump

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LIPEJ, Andrej ;MUHIČ, Simon ;MITRUŠEVSKI, Duško .
Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 63, n.9, p. 529-536, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/wall-roughness-influence-on-the-efficiency-characteristics-of-centrifugal-pump/>. Date accessed: 18 aug. 2018. 
doi:http://dx.doi.org/10.5545/sv-jme.2017.4526.
Lipej, A., Muhič, S., & Mitruševski, D.
(2017).
Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump.
Strojniški vestnik - Journal of Mechanical Engineering, 63(9), 529-536.
doi:http://dx.doi.org/10.5545/sv-jme.2017.4526
@article{sv-jmesv-jme.2017.4526,
	author = {Andrej  Lipej and Simon  Muhič and Duško  Mitruševski},
	title = {Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {63},
	number = {9},
	year = {2017},
	keywords = {pump; CFD; wall roughness; turbulence},
	abstract = {Many different machines are developed in industry and in terms of energy conversion, their efficiency is one of the most important parameters. A lot of theoretical, experimental and numerical analyses are done in the development process in order to obtain required characteristics. Computational fluid dynamics (CFD) analyses are a very important part of the development process. To obtain accurate results it is important to pay attention to geometry definition, usage appropriate numerical model, quality of the computational grid, realistic boundary conditions and all of the other parameters regarding fluid and solid material properties. A very important issue is usually the correct selection of the turbulence model. In most CFD analyses, only smooth surface is taken into account without considering any wall roughness. Besides the usage of different physical and mathematical models and all required parameters, the wetted surface roughness can also be one of the important origins of the numerical results inaccuracy. In the paper, the analysis of the influence of different parameters such as the sandgrain equivalent parameter is presented. The influence of y+ on the accuracy of the flow analysis with different absolute roughness of the surfaces is also analyzed. For basic relations, the flow in simple geometries like flow over flat plate and flow in circular pipe has been analyzed. The conclusions of the preliminary research work are used in the case of efficiency prediction of centrifugal pump with rough walls. The final numerical results are compared with the experimental ones and show better agreement in comparison with the flow over smooth walls.},
	issn = {0039-2480},	pages = {529-536},	doi = {10.5545/sv-jme.2017.4526},
	url = {https://www.sv-jme.eu/article/wall-roughness-influence-on-the-efficiency-characteristics-of-centrifugal-pump/}
}
Lipej, A.,Muhič, S.,Mitruševski, D.
2017 June 63. Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 63:9
%A Lipej, Andrej 
%A Muhič, Simon 
%A Mitruševski, Duško 
%D 2017
%T Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump
%B 2017
%9 pump; CFD; wall roughness; turbulence
%! Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump
%K pump; CFD; wall roughness; turbulence
%X Many different machines are developed in industry and in terms of energy conversion, their efficiency is one of the most important parameters. A lot of theoretical, experimental and numerical analyses are done in the development process in order to obtain required characteristics. Computational fluid dynamics (CFD) analyses are a very important part of the development process. To obtain accurate results it is important to pay attention to geometry definition, usage appropriate numerical model, quality of the computational grid, realistic boundary conditions and all of the other parameters regarding fluid and solid material properties. A very important issue is usually the correct selection of the turbulence model. In most CFD analyses, only smooth surface is taken into account without considering any wall roughness. Besides the usage of different physical and mathematical models and all required parameters, the wetted surface roughness can also be one of the important origins of the numerical results inaccuracy. In the paper, the analysis of the influence of different parameters such as the sandgrain equivalent parameter is presented. The influence of y+ on the accuracy of the flow analysis with different absolute roughness of the surfaces is also analyzed. For basic relations, the flow in simple geometries like flow over flat plate and flow in circular pipe has been analyzed. The conclusions of the preliminary research work are used in the case of efficiency prediction of centrifugal pump with rough walls. The final numerical results are compared with the experimental ones and show better agreement in comparison with the flow over smooth walls.
%U https://www.sv-jme.eu/article/wall-roughness-influence-on-the-efficiency-characteristics-of-centrifugal-pump/
%0 Journal Article
%R 10.5545/sv-jme.2017.4526
%& 529
%P 8
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 63
%N 9
%@ 0039-2480
%8 2018-06-27
%7 2018-06-27
Lipej, Andrej, Simon  Muhič, & Duško  Mitruševski.
"Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump." Strojniški vestnik - Journal of Mechanical Engineering [Online], 63.9 (2017): 529-536. Web.  18 Aug. 2018
TY  - JOUR
AU  - Lipej, Andrej 
AU  - Muhič, Simon 
AU  - Mitruševski, Duško 
PY  - 2017
TI  - Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2017.4526
KW  - pump; CFD; wall roughness; turbulence
N2  - Many different machines are developed in industry and in terms of energy conversion, their efficiency is one of the most important parameters. A lot of theoretical, experimental and numerical analyses are done in the development process in order to obtain required characteristics. Computational fluid dynamics (CFD) analyses are a very important part of the development process. To obtain accurate results it is important to pay attention to geometry definition, usage appropriate numerical model, quality of the computational grid, realistic boundary conditions and all of the other parameters regarding fluid and solid material properties. A very important issue is usually the correct selection of the turbulence model. In most CFD analyses, only smooth surface is taken into account without considering any wall roughness. Besides the usage of different physical and mathematical models and all required parameters, the wetted surface roughness can also be one of the important origins of the numerical results inaccuracy. In the paper, the analysis of the influence of different parameters such as the sandgrain equivalent parameter is presented. The influence of y+ on the accuracy of the flow analysis with different absolute roughness of the surfaces is also analyzed. For basic relations, the flow in simple geometries like flow over flat plate and flow in circular pipe has been analyzed. The conclusions of the preliminary research work are used in the case of efficiency prediction of centrifugal pump with rough walls. The final numerical results are compared with the experimental ones and show better agreement in comparison with the flow over smooth walls.
UR  - https://www.sv-jme.eu/article/wall-roughness-influence-on-the-efficiency-characteristics-of-centrifugal-pump/
@article{{sv-jme}{sv-jme.2017.4526},
	author = {Lipej, A., Muhič, S., Mitruševski, D.},
	title = {Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {63},
	number = {9},
	year = {2017},
	doi = {10.5545/sv-jme.2017.4526},
	url = {https://www.sv-jme.eu/article/wall-roughness-influence-on-the-efficiency-characteristics-of-centrifugal-pump/}
}
TY  - JOUR
AU  - Lipej, Andrej 
AU  - Muhič, Simon 
AU  - Mitruševski, Duško 
PY  - 2018/06/27
TI  - Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 63, No 9 (2017): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2017.4526
KW  - pump, CFD, wall roughness, turbulence
N2  - Many different machines are developed in industry and in terms of energy conversion, their efficiency is one of the most important parameters. A lot of theoretical, experimental and numerical analyses are done in the development process in order to obtain required characteristics. Computational fluid dynamics (CFD) analyses are a very important part of the development process. To obtain accurate results it is important to pay attention to geometry definition, usage appropriate numerical model, quality of the computational grid, realistic boundary conditions and all of the other parameters regarding fluid and solid material properties. A very important issue is usually the correct selection of the turbulence model. In most CFD analyses, only smooth surface is taken into account without considering any wall roughness. Besides the usage of different physical and mathematical models and all required parameters, the wetted surface roughness can also be one of the important origins of the numerical results inaccuracy. In the paper, the analysis of the influence of different parameters such as the sandgrain equivalent parameter is presented. The influence of y+ on the accuracy of the flow analysis with different absolute roughness of the surfaces is also analyzed. For basic relations, the flow in simple geometries like flow over flat plate and flow in circular pipe has been analyzed. The conclusions of the preliminary research work are used in the case of efficiency prediction of centrifugal pump with rough walls. The final numerical results are compared with the experimental ones and show better agreement in comparison with the flow over smooth walls.
UR  - https://www.sv-jme.eu/article/wall-roughness-influence-on-the-efficiency-characteristics-of-centrifugal-pump/
Lipej, Andrej, Muhič, Simon, AND Mitruševski, Duško.
"Wall Roughness Influence on the Efficiency Characteristics of Centrifugal Pump" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 63 Number 9 (27 June 2018)

Authors

Affiliations

  • Faculty of Technologies and Systems, Slovenia
  • Faculty of Technologies and Systems, Slovenia
  • SM Pumps, Slovenia

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 63(2017)9, 529-536

10.5545/sv-jme.2017.4526

Many different machines are developed in industry and in terms of energy conversion, their efficiency is one of the most important parameters. A lot of theoretical, experimental and numerical analyses are done in the development process in order to obtain required characteristics. Computational fluid dynamics (CFD) analyses are a very important part of the development process. To obtain accurate results it is important to pay attention to geometry definition, usage appropriate numerical model, quality of the computational grid, realistic boundary conditions and all of the other parameters regarding fluid and solid material properties. A very important issue is usually the correct selection of the turbulence model. In most CFD analyses, only smooth surface is taken into account without considering any wall roughness. Besides the usage of different physical and mathematical models and all required parameters, the wetted surface roughness can also be one of the important origins of the numerical results inaccuracy. In the paper, the analysis of the influence of different parameters such as the sandgrain equivalent parameter is presented. The influence of y+ on the accuracy of the flow analysis with different absolute roughness of the surfaces is also analyzed. For basic relations, the flow in simple geometries like flow over flat plate and flow in circular pipe has been analyzed. The conclusions of the preliminary research work are used in the case of efficiency prediction of centrifugal pump with rough walls. The final numerical results are compared with the experimental ones and show better agreement in comparison with the flow over smooth walls.

pump; CFD; wall roughness; turbulence