Rotating Channel (IL)
A rotating tube with a liquid channel in an isothermal liquid network.
Description
The Rotating Channel (IL) block simulates a rotating pipe with a channel for isothermal liquid. The angular velocity of the pipe is set by a physical signal at port W. Ports A and B are the inlet and outlet ports of the isothermal liquid.
The fluid passing through the rotating channel experiences a pressure change due to the resistance in passing through the housing port and due to the angular momentum of the fluid. The internal connection to the block Orifice (IL) accounts for local resistances. The pressure change in the block is modelled as:
where
-
- is the density of the liquid in the port A;
-
- angular velocity of the shaft, obtained as a scalar in the port W;
-
- radius of rotation in the port B.
The isothermal liquid output port can be connected to the Rotating Cylinder Force (IL) block to simulate a rotary drive.
Ports
Conserving
#
A
—
liquid port
isothermal liquid
Details
A fluid inlet or outlet port.
Program usage name |
|
#
B
—
liquid port
isothermal liquid
Details
A fluid inlet or outlet port.
Program usage name |
|
Input
#
W
—
angular velocity, rad/s
scalar
Details
The angular velocity of a rotating shaft in rad/s, given as a scalar.
Data types |
|
Complex numbers support |
No |
Parameters
Parameters
#
Orifice area —
cross-sectional area of the shaft bore
m^2
| cm^2
| ft^2
| in^2
| km^2
| mi^2
| mm^2
| um^2
| yd^2
Details
The cross-sectional area of the shaft bore for fluid inlet or outlet.
Values |
|
Default value |
|
Program usage name |
|
Evaluatable |
Yes |
#
Port B radius of rotation —
radius of rotation
m
| cm
| ft
| in
| km
| mi
| mm
| um
| yd
Details
The radius of rotation of the pipe at port B.
Values |
|
Default value |
|
Program usage name |
|
Evaluatable |
Yes |
# Discharge coefficient — flow coefficient
Details
The correction factor is the ratio of the actual mass flow rate to the theoretical mass flow rate through the orifice.
Default value |
|
Program usage name |
|
Evaluatable |
Yes |
# Critical Reynolds number — upper limit of Reynolds number for laminar flow
Details
The Reynolds number at which the laminar flow regime is maintained.
Default value |
|
Program usage name |
|
Evaluatable |
Yes |