COMSOL: Periodic inlet flow rate in a pipe

Click For Summary
SUMMARY

Zach seeks guidance on implementing a periodic inlet flow rate (Q(t)) as a boundary condition (BC) in COMSOL for a 2D axisymmetric Transient Navier-Stokes simulation. He is aware of the periodic boundary condition option in COMSOL but lacks clarity on its application. Zach has already obtained the flow rate data vector from MATLAB and aims to utilize it effectively as a BC at the inlet.

PREREQUISITES
  • Familiarity with COMSOL Multiphysics, specifically the fluid dynamics module.
  • Understanding of 2D axisymmetric modeling in computational fluid dynamics.
  • Knowledge of the Transient Navier-Stokes equations.
  • Experience with MATLAB for data preparation and manipulation.
NEXT STEPS
  • Research how to implement periodic boundary conditions in COMSOL Multiphysics.
  • Explore the integration of MATLAB data into COMSOL simulations.
  • Study the setup of transient simulations in COMSOL for fluid dynamics.
  • Learn about the specific requirements for defining custom boundary conditions in COMSOL.
USEFUL FOR

Fluid dynamics engineers, COMSOL users, and researchers working on transient flow simulations who need to implement periodic boundary conditions effectively.

juvel006
Messages
8
Reaction score
0
Hi all -

I would like to add a periodic inlet flow rate (Q(t) over an entire period T) as a BC in COMSOL. Does anyone know how to do this in 2D axisymmetric Transient Navier Stokes through COMSOL? I'm aware of the periodic boundary condition option available, but really just don't know how to use it and have found no good references to it. Any ideas or input to this problem would be appreciated.

- Zach
 
Computer science news on Phys.org
PS: I already have the flow rate Q(t) data vector from matlab, now I want to make it a BC at the inlet!
 

Similar threads

Flow rate of air through constriction
  • · Replies 10 ·
Replies
10
Views
4K
Undergrad Hydraulic pressure/flow -- friction loss question
  • · Replies 6 ·
Replies
6
Views
2K
Outlet Volume flow rate from a steam turbine
  • · Replies 10 ·
Replies
10
Views
3K
Dynamic Simulation After Feed Flow Reduction
  • · Replies 2 ·
Replies
2
Views
2K
How does a pump trade head for flow rate?
  • · Replies 3 ·
Replies
3
Views
3K
Flow rate needed to lift object inside a vertical pipe
  • · Replies 4 ·
Replies
4
Views
2K
Volumetric flow rate of a pipe
  • · Replies 19 ·
Replies
19
Views
3K
How to calculate effective pump flow-rate across a filter?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Steam flow rate in 2-chamber steam engine system
  • · Replies 4 ·
Replies
4
Views
2K
Fresnel Equations Simulation in 2D: How to Avoid Side Entry in Comsol?
  • · Replies 3 ·
Replies
3
Views
3K