Osborne Reynolds Apparatus .
Osborne Reynolds' Apparatus
can be floor or bench mounted and is developed for the vertical flow of
a liquid through a precision bore glass tube. The utilize of a vertical
direction for the flow compensates for the impact of any small
separations of the density of dye relative to that of the performaing
fluid.
The
operating fluid may be delivered from any small bore supply point via
the flexible hose given. Fluid enters a cylindrical constant head tank
from a ring diffuser & then through a stilling bed in order to
eliminate any gross variations of fluid velocity in the head tank.
This
tank therefore provides uniform, low velocity head conditions upstream
of the entry to the vertically mounted pipe test section. Fluid enters
this section through a profiled bellmouth, designed to uniformly
accelerate the fluid without any spurious inertial effects.
The
cylindrical pipe test section is mounted inside a fabricated shroud
that provides an uninterrupted white background for observations of the
dye trace behaviour. Dye solution is admitted to the test section
through a fine diameter stainless steel tube and the rate of flow of dye
is controlled by a needle valve on the outlet of the dye reservoir. The
dye injection system can be readily removed for cleaning and
maintenance.
The
flow rate of the working fluid through the test section is regulated by
a globe valve located in the base of the apparatus. The rate may be
measured either volumetrically or by weighing (equipment for this
purpose is not supplied) The apparatus is compatible with any means
chosen to alter the kinetic viscosity of the fluid, either by using
different fluids or by altering the temperature of a given fluid (the
external circuit for this is not supplied).
The
whole apparatus is mounted on a substantial fabricated steel support
and a means is provided for leveling the apparatus to ensure the test
section is vertical. The stilling bed, all necessary connecting hoses,
an initial supply of dye and an instruction manual are supplied with the
apparatus.
Specification:
- Fluid enters a vertically mounted test section through a carefully profiled bell mouth from a constant head tank.
- Floor standing apparatus to produce classic Osborne Reynolds' experiments.
- An easily cleaned dye injection system is incorporated.
- Fluid flow is controlled by a needle point globe valve.
- Supply comprises stilling bed, hoses & dye
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