Shynar Ospanova, Gulzhakhan Baydullayeva, Ardak Maksutkhanova, Altay Tuyakbayev, Zhanar Shortanbayeva, Symbat Bolegenova, Valeriy Maximov, Aliya Askarova, Saltanat Bolegenova, Aizhan Nugymanova, Yryna Berezovskaya, Khazyret Berdykhan, Aydana Arystan, Elmira Zulbukharova, Akmaral Sugirbekova, Investigation of Various Types of Liquid Fuel Atomization and Combustion Processes at High Turbulence, Journal of Engineering and Applied Sciences, Volume 13,Issue 11, 2018, Pages 4054-4064, ISSN 1816-949x, jeasci.2018.4054.4064, (https://makhillpublications.co/view-article.php?doi=jeasci.2018.4054.4064) Abstract: This study is devoted to the study of the influence of pressure and injected mass of liquid fuels on its evaporation and combustion processes. The octane and dodecane were used as liquid fuels in the researches. There was also constructed the model of the combustion chamber in a cylinder form. During the numerical simulation has been determined optimum combustion mode for two types of liquid fuel. Optimum pressure for octane was 100 bar and for dodecane was 80 bar. Optimal injection mass for octane was 6 mg and for dodecane was 7 mg. Numerical simulation results were compared with experimental data of various researchers. Also, for more visual description of the results of the octane and dodecane simulation processes other hydrocarbon fuels were investigated. It has been determined the amount of divergence from the simulation results of the experiment. Keywords: Atomization;combustion;turbulence;liquid fuel;internal engine;fuels