Turbocompressors and ducted fans

Course guarantor:

Lecturer:

Tutor:

Supervisor:

Department of Energy Engineering

Synopsis:

Classification of Turbocompressors and Ducted fans, basic principles. Fundamentals of thermodynamics and internal aerodynamics of turbocompressors

Compressor two dimensional cascades

Inlet and outlet casings, outlet diffusers

Axial compressor and fan stage theory, velocity triangles

Aerodynamic design of axial compressor stage with application of streamline curvature method and blade elements data. Structure and dynamic analysis of compressor blades. Flow rate regulation

Aerodynamic design of low pressure ducted axial flow fan. Use of aerodynamic performance of isolated airfoils.

Centrifugal compressor and ducted fan theory, slip factor

An example of low pressure centrifugal fan design

Centrifugal compressor design. Multistage turbocompressor work. Flow rate regulation

Tests of turbocompressors and ducted fans. Determination of turbomachine aerodynamic performance ( pressure ratio and efficiency) according to International Standards

Unsteady flow phenomena in turbocompressors and ducted fans with joined pipe system. Rotating stall and surge. Several examples of blades and impellers failures

An improvement of ducted fans efficiency by means of change of impeller design

Requirements:

Syllabus of lectures:

Syllabus of tutorials:

Study Objective:

Study materials:

Cumpsty N. A.: Compressor Aerodynamics, Krieger Publishing Company, Malbar, Florida, 2004

Bommes L., Fricke J., Grundmann R.: Ventilatoren, 2 Auflage, Vulkan, 2002

Dixon S. L. and Hall C.A.: Fluid Mechanics and Thermodynamics of Turbomachinery. 6th edition. Elsevier, Butterwords-Heinemann Publishing House, Amsterdam-London etc., 2010

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans: