Effect due to Variation in Bend Angles of Intake Manifold on Turbulent Kinetic Energy for Diesel Engine
Shahim Haider Abidi1, M. M Hasan2

1Abidi Shahim Haider*, Research Scholar, Department of Mechanical Engineering, Jamia Millia Islamia (a central university) in New Delhi, India.
2Hasan M.M, Senior Professor, Department of Mechanical Engineering, Jamia Millia Islamia (a central university) in New Delhi, India.
Manuscript received on February 10, 2020. | Revised Manuscript received on February 23, 2020. | Manuscript published on March 10, 2020. | PP: 1979-1982 | Volume-9 Issue-5, March 2020. | Retrieval Number: E2973039520/2020©BEIESP | DOI: 10.35940/ijitee.E2973.039520
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: One of the positive results for enhancing turbulence is to improve swirl, which is an important factor of air motion in a diesel engine. Other than enhancing mixing and improvement in combustion processes it also influences heat transfer, combustion quality, and engine raw emissions. To improve swirl intensities in-cylinder parameters like velocity, pressure, temperature and turbulence intensity are to be considered. There are two ways to create a swirl, modification in the intake system and valve design. So this work done contains modifications in the design of manifold to enhance turbulence during the intake stroke. Designs of manifold having different bend angle of 15o , 30o , 45o , 60o and 75o were used, all parts of numerical analysis were carried out on Ansys Fluent. The 200mm long intake model having a 20 mm diameter, with a bend on 160mm along length was used to find out the best bend angle configuration from the above orientations. K-epsilon model was used to simulate flow dynamics; variations turbulent kinetic energy was studied. After analyzing these results it was concluded that best-optimized design (in terms of turbulent kinetic energy) to get better swirl was for 75o . This work gives the understanding to find new techniques for further improvement in mixing by increasing turbulent kinetic energy. This work emphasizes on the techniques to enhance turbulent kinetic energy of any flow, and can also be applied to different fields related to mixing of fluids other than diesel engine.
Keywords: CFD, Intake Manifold, Turbulent kinetic energy
Scope of the Article: Internet Computing