Numerical Analysis on Combustion Characteristic of Leaf Spring Rotary Engine

Yan Zhang, Zhengxing Zuo and Jinxiang Liu
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Yan Zhang: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Zhengxing Zuo: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Jinxiang Liu: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

Energies, 2015, vol. 8, issue 8, 1-24

Abstract: The purpose of this paper is to investigate combustion characteristics for rotary engine via numerical studies. A 3D numerical model was developed to study the influence of several operative parameters on combustion characteristics. A novel rotary engine called, “Leaf Spring Rotary Engine”, was used to illustrate the structure and principle of the engine. The aims are to (1) improve the understanding of combustion process, and (2) quantify the influence of rotational speed, excess air ratio, initial pressure and temperature on combustion characteristics. The chamber space changed with crankshaft rotation. Due to the complexity of chamber volume, an equivalent modeling method was presented to simulate the chamber space variation. The numerical simulations were performed by solving the incompressible, multiphase Unsteady Reynolds-Averaged Navier–Stokes Equations via the commercial code FLUENT using a transport equation-based combustion model; a realizable turbulence model and finite-rate/eddy-dissipation model were used to account for the effect of local factors on the combustion characteristics.

Keywords: leaf spring rotary engine; combustion characteristics; numerical model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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