Skip to main content Accessibility help

The Effect of Using the Flow Separator Blade to Increase the Uniformity of Flow in the Intake Manifold

  • M. Nazemi Babadi (a1) and S. Kheradmand (a1)


In this paper, an idea to make the flow uniform inside the manifolds of four and six cylinder engines without changing their main geometries is presented. In general the uniform distribution of air flow among the engine cylinders is very important. Non-uniform flow in the intake manifold outlets causes inadequate feeding of the cylinders, inappropriate combustion and reduces engine volumetric efficiency. So this matter is vital for improving engine performance. A flow guide blade is added into the manifold and uniformity of the air flow is studied in different regime using transient numerical simulations. The amount of air exited from each outlet and the effect of this blade on flow uniformity is investigated. The results showed that the blade has made the flow more uniform in the manifold outlets and it was also found that in the four-cylinder and six-cylinder engines the flow uniformity is increased by 67% and 75%, respectively. In other words, as the number of engine cylinders increase, the effect of using this blade increases.


Corresponding author

*Corresponding author (


Hide All
1.Costa, R. C., Hanriot, S. D. M. and Sodré, J. R., “Influence of intake pipe length and diameter on the performance of a spark ignition engine,” Journal of the Brazilian Society of Mechanical Sciences and Engineering, 36, pp. 2935 (2014).
2.Freudenhammer, D., Baum, E., Peterson, B., Böhm, B., Jung, B. and Grundmann, S., “Volumetric intake flow measurements of an IC engine using magnetic resonance velocimetry,” Experiments in Fluids, 55, p. 1724 (2014).
3.Huang, C. H., Wang, C. H. and Kim, S., “A manifold design problem for a plate-fin microdevice to maximize the flow uniformity of system,” International Journal of Heat and Mass Transfer, 95, pp. 2234 (2016).
4.Onorati, A., Montenegro, G., Errico, G. D. and Piscaglia, F., “Integrated 1D-3D fluid dynamic simulation of a turbocharged diesel engine with complete intake and exhaust systems,” SAE Technical Paper, 2010-01-1194, (2010).
5.Vashahi, F., Choi, Y., Ra, S.. and Lee, J. K., “Influence of Design Parameters on the Air/Liquid Ratio of an Air Induction Nozzle,” Journal of Mechanics, 34, pp. 375385 (2017).
6.Samuel, J., NS, P. and Annamalai, K., “Effect of Variable Length Intake Manifold on a Turbocharged Multi-Cylinder Diesel Engine,” SAE Technical Paper, 2013-01-2756, (2013).
7.William, J., Dupont, A., Bazile, R. and Marchal, M., “Study of geometrical parameter influence on air/EGR mixing,” SAE Technical Paper, 2003-01-1796 (2003).
8.Paul, B. and Ganesan, V., “Flow field development in a direct injection diesel engine with different manifolds,” International Journal of Engineering, Science and Technology, 2, pp. 8091 (2010).
9.Vaughan, A. and Delagrammatikas, G. J, “Variable Runner Length Intake Manifold Design: An Interim Progress Report,” SAE Technical Paper, 2010-01-1112, (2010).
10.da Silva Trindade, W. “Use of 1D-3D Coupled Simulation to Develop an Intake Manifold System,” SAE Technical Paper, 2010-01-1534, (2010).
11.Saravanan, D., Gokhale, A. and Karthikeyan, N., “Design and Development of a Flow Based Dual Intake Manifold System,” SAE Technical Paper, 2014-01-2880, (2014).
12.Zhang, T. et al., “Research in the Effects of Intake Manifold Length and Chamber Shape on Performance for an Atkinson Cycle Engine,” SAE Technical Paper, 2016-01-1086, (2016).
13.Xu, J., “Flow analysis of engine intake manifold based on computational fluid dynamics,” Journal of Physics: Conference Series, 916, p. 012043 (2017).
14.Yang, H., Wang, Y., Ren, M. and Yang, X., “Effect of the rectangular exit-port geometry of a distribution manifold on the flow performance,” Applied Thermal Engineering, 117, pp. 481486 (2017).
15.Giannakopoulos, G. K., Frouzakis, C. E., Boulouchos, K., Fischer, P. F. and Tomboulides, A. G., “Direct numerical simulation of the flow in the intake pipe of an internal combustion engine,” International Journal of Heat and Fluid Flow, 68, pp. 257268 (2017).
16.Manmadhachary, A., Santosh Kumar, M. and Ravi Kumar, Y., “Design&manufacturing of spiral intake manifold to improve Volument efficiency of injection diesel engine byAM process,” Materials Today: Proceedings, 4, pp. 10841090 (2017).
17.Jemni, M. A., Kantchev, v, Abid, M. S., “Influence of intake manifold design on in-cylinder flow and engine performances in a bus diesel engine converted to LPG gas fuelled, using CFD analyses and experimental investigations,” Energy, 36, pp. 27012715 (2011).
18.Wang, J., “Theory of flow distribution in manifolds,” Chemical engineering journal, 168, pp. 13311345 (2011).
19.Tang, G. et al., “Design of a 4-cylinder gasoline turbo engine intake manifold,” Proceedings of the ASME 2016 International Mechanical Engineering Congress and Exposition, 9, pp. 16 (2016).
20.Poroseva, S. V., Bézard, H., “On ability of standard k-3 model to simulate aerodynamic turbulent flows,” CFD Journal, 9, pp. 464470 (2001).
21.Sakowitz, A., Mihaescu, M. and Fuchs, L., “Flow decomposition methods applied to the flow in an IC engine manifold,” Applied Thermal Engineering, 65, pp. 5765 (2014).
22.Tonomura, O., Tanaka, S., Noda, M., Kano, M., Hasebe, S. and Hashimoto, I., “CFD-based optimal design of manifold in plate-fin microdevices,” Chemical Engineering Journal, 101, pp. 397402, 2004.
23.Ceviz, M. A. and Akin, M., “Design of a new SI engine intake manifold with variable length plenum,” Energy Conversion and Management, 51, pp. 22392244 (2010).
24.Pogorevc, P. and Kegl, B., “Intake system design procedure for engines with special requirements,” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220, pp. 241252 (2006).


Related content

Powered by UNSILO

The Effect of Using the Flow Separator Blade to Increase the Uniformity of Flow in the Intake Manifold

  • M. Nazemi Babadi (a1) and S. Kheradmand (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.