METHOD OF CALCULATION OF A TURBULENT FLOW IN AN AXIAL
GAP WITH A VARIABLE RADIUS BETWEEN A ROTATING DISK
AND AN AXISYMMETRIC CASING

A. S. Baibikov

UDC 532.526

An integral method for calculation of a turbulent 
flow in an axial gap between a rotating disk and an axisymmetric casing 
is developed with account for the small flow through the gap, the 
variation of the gap width over the radius, and the interaction with 
outer flows. Limitations of the mathematical models used by most researchers 
and ways of surmounting them are revealed. The method is confirmed 
by a comparison with known experimental data. The obtained computational 
integral parameters were used repeatedly to improve economy and reliability 
of industrial pumps, turbines, and compressors.