## THERMAL SCIENCE

International Scientific Journal

### FLOW CHARACTERISTICS ANALYSIS OF A TWO-PHASE SUSPENSION BETWEEN ROTATING POROUS CYLINDERS WITH RADIAL AND AXIAL FLOWS

**ABSTRACT**

The flow characteristics problem of the two-phase suspension in the design of filters is presented, and the hydrodynamic stability is carried out to study the flow characteristics of a two-phase suspension between a rotating porous inner cylinder and a concentric, stationary, porous outer cylinder when radial flow and axial flow are present. Linear stability analysis results in an eigenvalue problem that is solved numerically by Wan's method. The results reveal that the critical Taylor number for the onset of instability is altered by other parameters. For given correlation parameters, increasing the axial Reynolds number increases the critical Taylor number for transition very slightly, the critical Taylor number decreases as the axial Reynolds number becomes negative.

**KEYWORDS**

PAPER SUBMITTED: 2017-03-23

PAPER REVISED: 2017-09-24

PAPER ACCEPTED: 2017-09-24

PUBLISHED ONLINE: 2018-09-10

**THERMAL SCIENCE** YEAR

**2018**, VOLUME

**22**, ISSUE

**4**, PAGES [1857 - 1864]

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