Title: Numerical simulation of an influence of a compressor and a turbine on characteristics of a combustion chamber of a small-sizes gas turbine engine
Abstract:The objective of the presented study is an investigation of gas turbine engine's (GTE) combustion chamber (CC) characteristics with a consideration of a compressor and a turbine by means of numerical ...The objective of the presented study is an investigation of gas turbine engine's (GTE) combustion chamber (CC) characteristics with a consideration of a compressor and a turbine by means of numerical simulation. Combustion chamber of GTE determines its basic characteristics, therefore, an accurate calculation of its operating procedure is of great importance. However, nowadays, an accuracy of combustion chambers' calculation is limited by a number of factors. In particular, those are problems associated with the correct setting of operation parameters at an inlet and an exhaust of a combustion chamber. At the time of beginning of a combustion chamber's calculation, data on nature of parameters' change after a compressor is often unknown. Therefore, as a general rule, researchers specify them in a form of a uniform distribution over a cross-section. At the same time, the way how it influences combustion chamber's characteristics is unknown. The same can be said about parameters at a turbine's inlet. A verification by means of numerical simulation of a presence or an absence of an influence of parameters' distribution after or before a compressor on a combustion chamber's characteristics is impeded by a need to ensure a harmonization of geometric and grid models of calculated areas, as well as by a number of conditions, such as a harmonization of revolutions of rotors of a turbine and a compressor. In the presented study the objective of an investigation of an influence of parameters after a compressor and before a turbine on CC characteristics was achieved in a consecutive manner. Initially, a calculation was performed for a combustion chamber with a specified input and output parameters in a form of diagrams with average values of parameters. As a results, basic characteristics of a combustion chamber are obtained. It is established, that taking into account a turbine and a compressor changes a distribution of parameters in a combustion chamber and influences its performance. On a basis of results of the conducted study, a new methodology for a design of a combustion chamber is proposed. (Orlov M.Y., Matveev S.S. Numerical simulation of an influence of a compressor and a turbine on characteristics of a combustion chamber of a small-sizes gas turbine engine. Life Sci J 2014;11(11):650-654) (ISSN:1097-8135). http://www.lifesciencesite.com. 119Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 5
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