Numerical Study on Three-Dimensional Steady-State Temperature Field of a Gasoline Engine

Abstract

Today CFD is an important tool for engineers in the automotive industry. To simulate and optimize the fluid flow and heat transfer in the engine, the research is carried out. The geometric models of a gasoline engine and the cooling water jacket are simplified by Pro/E software firstly. Then solid - liquid coupled heat transfer analysis is done by using CFD software FLUENT. Temperature field distributions in the engine body and the cooling water jacket are obtained. An engine temperature test bench is set up, on which temperature values of key points are measured. The analysis on the errors between the experimental data and the calculation results shows that the temperature distributions in the engine are reasonable and the cooling performance of the water jacket meets the design requirements. The deviations between the experimental data and calculated values on the measuring points are not big, so the calculation method has high accuracy. The data obtained in this experiment can be used as the basis in the following study.

Numerical Investigation of Two Dimensional Temperature Distribution of a Composite Cylinder Liner

“…Ancak, aşırı soğutulmuş parçalar ise istenmeyen kompresör kaçaklarına sebebiyet vereceğinden, bu parçalarda sıcaklığın aşırı düşürülmemesi gerekir (Dehghani, 2013;Holger, 2001;Lapuerta, 2000; İçten yanmalı motorlarda kullanılan silindir gömleklerinde sıcaklık dağılımı genellikle bilgisayar destekli paket programlar yardımı ile elde edilmiştir. (Ertek, 2020;Gustof, 2008;Roy, 2020;Trung, 2021(a, b); Wang et al, 2012). Trung (Trung, 2021(a)) farklı motor devri ve motor yükündeki bir V-12 motorunun silindir gömleğindeki sıcaklık dağılımlarını, ANSYS Parametrik Tasarım Dili'nde (APDL) yazılmış sonlu elemanlar yöntemi kullanarak belirlemiştir.…”

“…Su soğutmalı 4 valfli, 4 zamanlı, turbo sarjlı benzinli bir motordaki ve soğutma suyu ceketindeki sıcaklık dağılımı Wang vd. (Wang et al, 2012) tarafından hesaplamalı akışkanlar dinamiğinin bir yazılımı olan Ansys Fluent kullanılarak elde edilmiştir. Motor ilk olarak Pro/E kullanılarak basitleştirilmiştir.…”

Comparison of functionally graded and ungraded cylinder liners with finite element analysis

“…Figure 6. The finite element mesh of the functionally graded cylinder liner.Wang et al[26] studied three-dimensional temperature distribution in cylinders of a water-cooled gasoline engine by numerical methods. The average values obtained from this study were entered into the program as the final temperature values of the functionally graded cylinder liner.…”